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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 1, Nicht schnell
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  date published: 2026-06-13T12:47:07Z
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French Overture in B Minor, BWV 831: V. Sarabande
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Szymanowski: 20 Mazurkas, Op. 50: No. 10, Allegramente - Vivace - Con brio
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Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 5, Vivo
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by artist: Piotr Anderszewski
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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: 2026-07-08T08:56:20Z
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Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 6, Lento
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by artist: Béla Bartók
by artist: Piotr Anderszewski
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 6, Lento
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Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 7, Allegretto molto capriccioso
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by artist: Béla Bartók
by artist: Piotr Anderszewski
in album: Bartók, Janáček, Szymanowski
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 7, Allegretto molto capriccioso
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Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 8, Andante sostenuto
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by artist: Piotr Anderszewski
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additional property: CopyrightID
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 8, Andante sostenuto
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Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 13, Elle est morte. Lento funèbre
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by artist: Béla Bartók
by artist: Piotr Anderszewski
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bartók: 14 Bagatelles, Op. 6, Sz. 38: No. 13, Elle est morte. Lento funèbre
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-07T15:12:44Z
  audio: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 1 in C Major, BWV 870: II. Fugue
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 8 in D-Sharp Minor, BWV 877: I. Prelude
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  date published: 2026-07-06T06:56:49Z
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 8 in D-Sharp Minor, BWV 877: II. Fugue
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 11 in F Major, BWV 880: I. Prelude
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  date published: 2026-07-02T03:30:09Z
audio: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 11 in F Major, BWV 880: I. Prelude
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 22 in B-Flat Minor, BWV 891: I. Prelude
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  date published: 2026-07-02T11:38:34Z
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 16 in G Minor, BWV 885: I. Prelude
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 16 in G Minor, BWV 885: II. Fugue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 16 in G Minor, BWV 885: II. Fugue
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 9 in E Major, BWV 878: I. Prelude
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 9 in E Major, BWV 878: I. Prelude
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Shostakovich: String Quartet No. 3 & Piano Quintet
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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    date published: 2026-07-08T03:53:27Z
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  audio: String Quartet No. 3 in F Major, Op. 73: III. Allegro non troppo
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T11:38:34Z

String Quartet No. 3 in F Major, Op. 73: III. Allegro non troppo
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String Quartet No. 3 in F Major, Op. 73: IV. Adagio
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Mozart: Piano Concertos Nos 25 & 27
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OpenTimestamps Proof of Existence
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date published: 2026-07-06T06:56:49Z

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    date published: 2026-07-08T03:20:19Z
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    date published: 2026-07-08T08:56:20Z
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track: Schumann: Fantasie in C Major, Op. 17: III. Langsam getragen. Durchweg leise zu halten
track: Schumann: Theme and Variations in E-Flat Major, WoO 24, "Geistervariationen": I. Thema - Leise, innig
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T08:56:20Z

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Schumann: Theme and Variations in E-Flat Major, WoO 24, "Geistervariationen": I. Thema - Leise, innig
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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    date published: 2026-07-08T03:20:19Z
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track: Bach, JS: English Suite No. 3 in G Minor, BWV 808: VII. Gigue
track: Bach, JS: English Suite No. 1 in A Major, BWV 806: II. Allemande
track: Bach, JS: English Suite No. 1 in A Major, BWV 806: III. Courante I
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track: Bach, JS: English Suite No. 1 in A Major, BWV 806: IX. Bourrée II
track: Bach, JS: English Suite No. 5 in E Minor, BWV 810: II. Allemande
track: Bach, JS: English Suite No. 5 in E Minor, BWV 810: III. Courante
track: Bach, JS: English Suite No. 5 in E Minor, BWV 810: VI. Passepied II
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T11:34:59Z

Bach, JS: English Suite No. 3 in G Minor, BWV 808: V. Gavotte I
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subject of: OpenTimestamps Proof of Existence
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genre: classical
genre: classical-piano
isrc code: GBAYC1402579
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T00:32:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd55029db6e86ed08924b41735f535be6ced435fe62130e454b2cf1f82947647c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1402579
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xd55029db6e86ed08924b41735f535be6ced435fe62130e454b2cf1f82947647c. 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/GBAYC1402579.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: English Suite No. 3 in G Minor, BWV 808: VII. Gigue
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.398
  additional property: Energy
    type: PropertyValue
    value: 0.406
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.305
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.216
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.596
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bach, JS: English Suite No. 1 in A Major, BWV 806: II. Allemande
type: MusicRecording
duration: PT3M57S
duration ms: 237746
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402564
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T05:18:06+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0ec0884b337483a4ae26bb31509631fd6382cbdc3d3b96e2992c0ed517bdb2b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1402564
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x0ec0884b337483a4ae26bb31509631fd6382cbdc3d3b96e2992c0ed517bdb2b3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYC1402564.
  date published: 2026-06-13T13:32:09Z
audio: Bach, JS: English Suite No. 1 in A Major, BWV 806: II. Allemande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.398
  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: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.897
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.229
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.89
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Bach, JS: English Suite No. 1 in A Major, BWV 806: III. Courante I
type: MusicRecording
duration: PT1M27S
duration ms: 87520
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402565
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:30:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40daf8b26cac2639dede8580059198ba98c9e9d310a367bed7c9630a88aac26e
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/GBAYC1402565
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40daf8b26cac2639dede8580059198ba98c9e9d310a367bed7c9630a88aac26e. 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/GBAYC1402565.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: English Suite No. 1 in A Major, BWV 806: III. Courante I
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.468
  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: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.273
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.496
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.634
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bach, JS: English Suite No. 1 in A Major, BWV 806: VII. Sarabande
type: MusicRecording
duration: PT4M41S
duration ms: 281040
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402568
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:19:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc05a119090b9a527d40df6f9a1ea2a74a958c32d2bdde238f8b367e3843ef12e
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/GBAYC1402568
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05a119090b9a527d40df6f9a1ea2a74a958c32d2bdde238f8b367e3843ef12e. 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/GBAYC1402568.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: English Suite No. 1 in A Major, BWV 806: VII. Sarabande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.988
  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: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.187
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.178
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.08
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bach, JS: English Suite No. 1 in A Major, BWV 806: IX. Bourrée II
type: MusicRecording
duration: PT2M25S
duration ms: 145400
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402570
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:28:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x251b124d44622b333a7ff127f71cf78e2d235d81c7dc6c717852168fb8ac8ab3
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/GBAYC1402570
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251b124d44622b333a7ff127f71cf78e2d235d81c7dc6c717852168fb8ac8ab3. 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/GBAYC1402570.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: English Suite No. 1 in A Major, BWV 806: IX. Bourrée II
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.251
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.421
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.701
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.413
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bach, JS: English Suite No. 5 in E Minor, BWV 810: II. Allemande
type: MusicRecording
duration: PT3M30S
duration ms: 210613
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402581
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:23:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe97c993b78f02df1c62888764e5fbeaec5bff6985e0638f74ea8958dc49db164
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1402581
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xe97c993b78f02df1c62888764e5fbeaec5bff6985e0638f74ea8958dc49db164. 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/GBAYC1402581.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: English Suite No. 5 in E Minor, BWV 810: II. Allemande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.233
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.386
  additional property: Energy
    type: PropertyValue
    value: 0.099
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.915
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.293
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.34
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
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Bach, JS: English Suite No. 5 in E Minor, BWV 810: III. Courante
type: MusicRecording
duration: PT2M12S
duration ms: 132133
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
  type: MusicAlbum
  date published: 2014-10-31
genre: classical
genre: classical-piano
isrc code: GBAYC1402582
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:57:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2dcd8b233643a172921e182b475f26cc77f4f5bba329fba46eadbc126d6ab01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1402582
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xd2dcd8b233643a172921e182b475f26cc77f4f5bba329fba46eadbc126d6ab01. 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/GBAYC1402582.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: English Suite No. 5 in E Minor, BWV 810: III. Courante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.836
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.176
  additional property: Energy
    type: PropertyValue
    value: 0.178
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.586
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.536
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
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Bach, JS: English Suite No. 5 in E Minor, BWV 810: VI. Passepied II
type: MusicRecording
duration: PT2M2S
duration ms: 122093
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach, JS: English Suites Nos 1, 3 & 5
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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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: Bach, JS: English Suite No. 5 in E Minor, BWV 810: VII. Gigue
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Schumann : Piano works
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:38:34Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T13:52:39Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Schumann: Humoreske, Op. 20: IV. Innig
track: Schumann: Humoreske, Op. 20: VI. Zum Beschluß
track: Schumann: 6 Studien in kanonischer Form, Op. 56: No. 1, Nicht schnell
track: Schumann / Arr. Anderszewski: 6 Studien in kanonischer Form, Op. 56: No. 2, Mit innigem Ausdruck
track: Schumann: 6 Studien in kanonischer Form, Op. 56: No. 3, Andantino
track: Schumann: 6 Studien in kanonischer Form, Op. 56: No. 4, Innig
track: Schumann: 6 Studien in kanonischer Form, Op. 56: No. 6, Adagio
track: Schumann: Gesänge der Frühe, Op. 133: II. Belebt, nicht zu rasch
track: Schumann: Gesänge der Frühe, Op. 133: IV. Bewegt
track: Schumann: Gesänge der Frühe, Op. 133: V. Im Anfange ruhiges, im Verlauf bewegtes Tempo

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-06T07:16:32Z

Schumann: Humoreske, Op. 20: IV. Innig
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Schumann: Humoreske, Op. 20: VI. Zum Beschluß
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subject of: OpenTimestamps Proof of Existence
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audio: Schumann: Humoreske, Op. 20: VI. Zum Beschluß
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Schumann / Arr. Anderszewski: 6 Studien in kanonischer Form, Op. 56: No. 2, Mit innigem Ausdruck
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subject of: OpenTimestamps Proof of Existence
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 4, Innig
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Schumann: 6 Studien in kanonischer Form, Op. 56: No. 6, Adagio
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Schumann: Gesänge der Frühe, Op. 133: II. Belebt, nicht zu rasch
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Schumann: Gesänge der Frühe, Op. 133: IV. Bewegt
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Schumann: Gesänge der Frühe, Op. 133: V. Im Anfange ruhiges, im Verlauf bewegtes Tempo
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Piotr Anderszewski at Carnegie Hall
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    date published: 2026-07-08T03:22:41Z
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track: Schumann: Faschingsschwank aus Wien, Op. 26: I. Allegro
track: Beethoven: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo (Live)
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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  date published: 2026-07-08T08:56:20Z
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Mozart: Piano Concertos Nos. 17, K. 453 & 20, K. 466
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20th Century Violin Sonatas
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Szymanowski: Masques, Piano Sonata No. 3 & Métopes
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Bach: English Suite, Beethoven: Piano Sonata & Webern: Variations
type: MusicAlbum
date published: 2004

Chopin: Ballades, Mazurkas & Polonaises
type: MusicAlbum
date published: 2003-10-15
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  additional property: OTSVerificationAPI
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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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa432c5caec5dec0b4f4d1d27f521217aa8707560f2893959473cb12df2d006bf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC0301840.
    date published: 2026-07-02T03:30:09Z
  audio: Chopin: Mazurka No. 37 in A-Flat Major, Op. 59 No. 2
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track: Chopin: Mazurka No. 40 in F Minor, Op. 63 No. 2
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    date published: 2003-10-15
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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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d437e3fa38e333c160b378f54b2744ef88dcf50dedfbb1ce7b01ad04911a5e7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYC0301844.
    date published: 2026-07-08T08:56:20Z
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  by artist: Frédéric Chopin
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    type: MusicAlbum
    date published: 2003-10-15
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Chopin: Mazurka No. 41 in C-Sharp Minor, Op. 63 No. 3
track: Chopin: Ballade No. 3 in A-Flat Major, Op. 47
track: Chopin: Polonaise in F-Sharp Minor, Op. 44
track: Chopin: Polonaise in A-Flat Major, Op. 53 "Heroic"
track: Chopin: Mazurka No. 49 in F Minor, Op. Posth. 68 No. 4

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb90cdae19a90b04aaa258919d66c72491d5dc579fd4a0b43a50965c452e153f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC0301846.
date published: 2026-07-02T05:09:12Z

Chopin: Mazurka No. 41 in C-Sharp Minor, Op. 63 No. 3
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additional property: Tempo (BPM)
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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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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Chopin: Ballade No. 3 in A-Flat Major, Op. 47
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duration: PT7M58S
duration ms: 478213
explicit: false
by artist: Frédéric Chopin
by artist: Piotr Anderszewski
in album: Chopin: Ballades, Mazurkas & Polonaises
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  date published: 2003-10-15
genre: classical
genre: early-romantic-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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6276186a2cccf97edc1fb3082f394bfae09f979cc856ef4c96de5da752e101. 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/GBAYC0301831.
  date published: 2026-07-08T03:20:19Z
audio: Chopin: Ballade No. 3 in A-Flat Major, Op. 47
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Chopin: Polonaise in F-Sharp Minor, Op. 44
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duration ms: 719466
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by artist: Frédéric Chopin
by artist: Piotr Anderszewski
in album: Chopin: Ballades, Mazurkas & Polonaises
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genre: classical
genre: early-romantic-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1356ae68e418d95c845868837d4fcc59e1d24bf503075a87b048bc1fbfbe6b33. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0301836.
  date published: 2026-07-02T03:55:08Z
audio: Chopin: Polonaise in F-Sharp Minor, Op. 44
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Chopin: Polonaise in A-Flat Major, Op. 53 "Heroic"
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duration: PT7M45S
duration ms: 465160
explicit: false
by artist: Frédéric Chopin
by artist: Piotr Anderszewski
in album: Chopin: Ballades, Mazurkas & Polonaises
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genre: classical
genre: early-romantic-era
genre: polish-classical
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6452716144b8bf6173b8a029f460a4e7bb7ba51ec0c43debb06a43a920dfb9e5. 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/GBAYC0301837.
  date published: 2026-07-08T03:53:27Z
audio: Chopin: Polonaise in A-Flat Major, Op. 53 "Heroic"
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by artist: Piotr Anderszewski
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genre: classical
genre: early-romantic-era
genre: polish-classical
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additional property: CopyrightID
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Chopin: Mazurka No. 49 in F Minor, Op. Posth. 68 No. 4
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Bach: Partitas Nos. 1, 3 & 6
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date published: 2002-10-07
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  additional property: OTSBitcoinBlockVerifyURL
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34f0998717b0c0d6777e6f9c5acc057e830804300e4f4c7abbb85d4e786d2b3. 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/GBAYC0103487.
    date published: 2026-07-08T03:22:41Z
  audio: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: II. Allemande
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track: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: III. Courante
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  by artist: Piotr Anderszewski
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    type: MusicAlbum
    date published: 2002-10-07
  genre: classical
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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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5391fa389db30a7a04456c7da8930914e035fc5568118e2c4f5424fbbbc2ee7. 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/GBAYC0103488.
    date published: 2026-07-08T03:20:19Z
  audio: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: III. Courante
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track: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: V. Sarabande
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  by artist: Johann Sebastian Bach
  by artist: Piotr Anderszewski
  in album: Bach: Partitas Nos. 1, 3 & 6
    type: MusicAlbum
    date published: 2002-10-07
  genre: classical
  genre: classical-piano
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  additional property: CopyrightID
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  subject of: OpenTimestamps Proof of Existence
  audio: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: V. Sarabande
track: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: VI. Tempo di gavotta
track: Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: II. Allemande
track: Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: IV. Sarabande
track: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: III. Courante
track: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande
track: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: VII. Gigue

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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103490

OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcf1a26fe72ea08bb6b5f8420782debac077f54d3b679d84986e601e22738c4. 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/GBAYC0103490.
date published: 2026-07-08T03:20:19Z

Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: V. Sarabande
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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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: Key Name
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additional property: Mode Name
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Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: VI. Tempo di gavotta
type: MusicRecording
duration: PT1M51S
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explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: Partitas Nos. 1, 3 & 6
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genre: classical
genre: classical-piano
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b63bd243c7626d0086eba75bc03be281bc45837b5ae9c5c78d2aeebc38bf8e8. 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/GBAYC0103491.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Keyboard Partita No. 6 in E Minor, BWV 830: VI. Tempo di gavotta
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Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: II. Allemande
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duration: PT2M59S
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by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: Partitas Nos. 1, 3 & 6
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genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea738d167b4f7950b58ff038495640d57298b2478436eaea37a6fce406ae1fbe. 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/GBAYC0103479.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: II. Allemande
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Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: IV. Sarabande
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duration ms: 232200
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by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
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genre: classical
genre: classical-piano
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Bach, JS: Keyboard Partita No. 3 in A Minor, BWV 827: IV. Sarabande
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Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: III. Courante
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by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: Partitas Nos. 1, 3 & 6
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genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9379a0bece59ffec09157a3a85f3e1fe39fa9071e8d06120bcd3b4a75e7e7766
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103472
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
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 0x9379a0bece59ffec09157a3a85f3e1fe39fa9071e8d06120bcd3b4a75e7e7766. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAYC0103472.
  date published: 2026-07-02T11:34:59Z
audio: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: III. Courante
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 117.563
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.464
  additional property: Energy
    type: PropertyValue
    value: 0.224
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.898
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.725
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.326
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande
type: MusicRecording
duration: PT6M10S
duration ms: 370840
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: Partitas Nos. 1, 3 & 6
  type: MusicAlbum
  date published: 2002-10-07
genre: classical
genre: classical-piano
isrc code: GBAYC0103473
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:50:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01dab51b252355362997dfd7d0482b3ab1d9b76fbedf8a5f2092fcf9acff672a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x01dab51b252355362997dfd7d0482b3ab1d9b76fbedf8a5f2092fcf9acff672a. 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/GBAYC0103473.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.811
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.343
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.923
  additional property: Liveness
    type: PropertyValue
    value: 0.061
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.151
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.27
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: VII. Gigue
type: MusicRecording
duration: PT1M53S
duration ms: 113840
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: Partitas Nos. 1, 3 & 6
  type: MusicAlbum
  date published: 2002-10-07
genre: classical
genre: classical-piano
isrc code: GBAYC0103476
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T05:35:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6817a6d120d71190ad0921215298b62c2ac362a3699b84762ba0c06e29a1df9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103476
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xa6817a6d120d71190ad0921215298b62c2ac362a3699b84762ba0c06e29a1df9. 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/GBAYC0103476.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Keyboard Partita No. 1 in B-Flat Major, BWV 825: VII. Gigue
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.349
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.369
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.844
  additional property: Liveness
    type: PropertyValue
    value: 0.172
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.591
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.182
  additional property: Key Name
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    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Piano Concertos Nos. 21 & 24
type: MusicAlbum
date published: 2002-02-01
track: Mozart: Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
  type: MusicRecording
  duration: PT13M58S
  duration ms: 838640
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Piotr Anderszewski
  by artist: Sinfonia Varsovia
  in album: Mozart: Piano Concertos Nos. 21 & 24
    type: MusicAlbum
    date published: 2002-02-01
  genre: classical
  genre: classical-era
  isrc code: GBAYC0102531
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:58:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe3da713f5dd46d2658daf31685187cd01ac83ea038c32ea322593020b20a2e79
  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/GBAYC0102531
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3da713f5dd46d2658daf31685187cd01ac83ea038c32ea322593020b20a2e79. 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/GBAYC0102531.
    date published: 2026-07-08T03:20:19Z
  audio: Mozart: Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.999
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.279
    additional property: Energy
      type: PropertyValue
      value: 0.141
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.923
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.103
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.55
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
  type: MusicRecording
  duration: PT7M9S
  duration ms: 429782
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Piotr Anderszewski
  by artist: Sinfonia Varsovia
  in album: Mozart: Piano Concertos Nos. 21 & 24
    type: MusicAlbum
    date published: 2002-02-01
  genre: classical
  genre: classical-era
  isrc code: GBAYC0102528
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T06:41:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbf5ffe003c3d75a43d1f273c889a02bf412af9e8d1642ad9bfffaea0c99cfa99
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0102528
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xbf5ffe003c3d75a43d1f273c889a02bf412af9e8d1642ad9bfffaea0c99cfa99. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0102528.
    date published: 2026-07-02T03:55:08Z
  audio: Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 112.385
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.158
    additional property: Energy
      type: PropertyValue
      value: 0.018
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.95
    additional property: Liveness
      type: PropertyValue
      value: 0.09
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.056
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.025
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Beethoven: Diabelli Variations
type: MusicAlbum
date published: 2001-01-01
track: Beethoven: Diabelli Variations in C Major, Op. 120: Tema. Vivace
  type: MusicRecording
  duration: PT0M53S
  duration ms: 53960
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Piotr Anderszewski
  in album: Beethoven: Diabelli Variations
    type: MusicAlbum
    date published: 2001-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: FR39U0000001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:21:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5dd38ff558e611ee013400436138f844f7c89bf5ad24508a3fd654af762c6a94
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR39U0000001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x5dd38ff558e611ee013400436138f844f7c89bf5ad24508a3fd654af762c6a94. 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/FR39U0000001.
    date published: 2026-07-08T03:22:41Z
  audio: Beethoven: Diabelli Variations in C Major, Op. 120: Tema. Vivace
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.788
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.68
    additional property: Energy
      type: PropertyValue
      value: 0.229
    additional property: Speechiness
      type: PropertyValue
      value: 0.064
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.888
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.91
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.222
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Beethoven: Diabelli Variations in C Major, Op. 120: Variation I. Alla marcia maestoso
  type: MusicRecording
  duration: PT1M53S
  duration ms: 113573
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Piotr Anderszewski
  in album: Beethoven: Diabelli Variations
    type: MusicAlbum
    date published: 2001-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: FR39U0000002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR39U0000002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x7786dde4b57d2d7023439a2cc65a98e1dd930f2d0b27db7f8b1fca285adf2cfc. 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/FR39U0000002.
    date published: 2026-07-08T03:22:41Z
  audio: Beethoven: Diabelli Variations in C Major, Op. 120: Variation I. Alla marcia maestoso
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.462
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.711
    additional property: Energy
      type: PropertyValue
      value: 0.111
    additional property: Speechiness
      type: PropertyValue
      value: 0.486
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.772
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.28
    additional property: Loudness (dB)
      type: PropertyValue
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33 Variations on a Waltz in C major by Diabelli, Op.120: Variation XXII: Molto allegro (alla 'Notte e giorno faticar' di Mozart)
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  date published: 2026-07-08T03:39:04Z
audio: 33 Variations on a Waltz in C major by Diabelli, Op.120: Variation XXXIII: Tempo di menuetto, moderato (ma non tirarsi dietro)
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Bach: French Suite No. 5; Overture in the French Style
type: MusicAlbum
date published: 1999
track: French Suite No. 5 In G Major, BWV 816: I. Allemande
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  by artist: Johann Sebastian Bach
  by artist: Piotr Anderszewski
  in album: Bach: French Suite No. 5; Overture in the French Style
    type: MusicAlbum
    date published: 1999
  genre: classical
  genre: classical-piano
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x32d0fee749c9a74da747dfaddacc6d1f10af0ad863d09b9c20fd7b83c8ad0631
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956349
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149821010
  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 0x32d0fee749c9a74da747dfaddacc6d1f10af0ad863d09b9c20fd7b83c8ad0631. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ149821010.
    date published: 2026-07-02T11:34:59Z
  audio: French Suite No. 5 In G Major, BWV 816: I. Allemande
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: French Suite No. 5 In G Major, BWV 816: II. Courante
  type: MusicRecording
  duration: PT1M45S
  duration ms: 105840
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Piotr Anderszewski
  in album: Bach: French Suite No. 5; Overture in the French Style
    type: MusicAlbum
    date published: 1999
  genre: classical
  genre: classical-piano
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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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 0xe6aba2bc7427b9fb0680f24d82c63ce4508003cabd9ce0d2a15f677ea84bb0b2. 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/FRZ149821020.
    date published: 2026-07-08T03:53:27Z
  audio: French Suite No. 5 In G Major, BWV 816: II. Courante
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Valence (Positivity)
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track: French Suite No. 5 In G Major, BWV 816: III. Sarabande
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  duration: PT5M41S
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  by artist: Johann Sebastian Bach
  by artist: Piotr Anderszewski
  in album: Bach: French Suite No. 5; Overture in the French Style
    type: MusicAlbum
    date published: 1999
  genre: classical
  genre: classical-piano
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: French Suite No. 5 In G Major, BWV 816: III. Sarabande
track: French Suite No. 5 In G Major, BWV 816: V. Bourrée
track: French Suite No. 5 In G Major, BWV 816: VI. Loure
track: French Overture in B Minor, BWV 831: II. Courante
track: French Overture in B Minor, BWV 831: V. Sarabande
track: French Overture in B Minor, BWV 831: VII. Gigue

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ149821030

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec46fd5be6adf43746147c7d83b94b97962acb16e7d975c67b414ecfc8a168c. 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/FRZ149821030.
date published: 2026-07-08T03:20:19Z

French Suite No. 5 In G Major, BWV 816: III. Sarabande
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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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: Key Name
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additional property: Mode Name
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French Suite No. 5 In G Major, BWV 816: V. Bourrée
type: MusicRecording
duration: PT1M22S
duration ms: 82440
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: French Suite No. 5; Overture in the French Style
  type: MusicAlbum
  date published: 1999
genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0dc608877f726ce97c3501de30d1d04405e312de5d0948c1e68c775e9f579b. 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/FRZ149821050.
  date published: 2026-07-08T03:22:41Z
audio: French Suite No. 5 In G Major, BWV 816: V. Bourrée
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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French Suite No. 5 In G Major, BWV 816: VI. Loure
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duration: PT2M52S
duration ms: 172293
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: French Suite No. 5; Overture in the French Style
  type: MusicAlbum
  date published: 1999
genre: classical
genre: classical-piano
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3971237625a6d09f8d210a2b99ef88941352eeb5bd0be04cbfe3573298426d16. 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/FRZ149821060.
  date published: 2026-07-08T03:22:41Z
audio: French Suite No. 5 In G Major, BWV 816: VI. Loure
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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  additional property: Mode Name
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French Overture in B Minor, BWV 831: II. Courante
type: MusicRecording
duration: PT2M0S
duration ms: 120760
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: French Suite No. 5; Overture in the French Style
  type: MusicAlbum
  date published: 1999
genre: classical
genre: classical-piano
isrc code: FRZ149821090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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/FRZ149821090
additional property: OTSTimestamp
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439499278ec405fb7209d5a7a63bb7c41b9e2fcb4447186092229595a7f09924. 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/FRZ149821090.
  date published: 2026-07-08T03:20:19Z
audio: French Overture in B Minor, BWV 831: II. Courante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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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: Valence (Positivity)
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  additional property: Key Name
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French Overture in B Minor, BWV 831: VII. Gigue
type: MusicRecording
duration: PT3M14S
duration ms: 194106
explicit: false
by artist: Johann Sebastian Bach
by artist: Piotr Anderszewski
in album: Bach: French Suite No. 5; Overture in the French Style
  type: MusicAlbum
  date published: 1999
genre: classical
genre: classical-piano
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additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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subject of: OpenTimestamps Proof of Existence
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Brahms: Violin Sonatas Nos. 1-3
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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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Szymanowski: 20 Mazurkas, Op. 50: No. 3, Moderato
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Bach: Well-Tempered Clavier, Book 2 (Excerpts) - Prelude and Fugue No. 8 in D-Sharp Minor, BWV 877: II. Fugue
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
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Bach: Well-Tempered Clavier, Book 2 (Excerpts) - Prelude and Fugue No. 17 in A-Flat Major, BWV 886: I. Prelude
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    date published: 2026-06-13T15:41:10Z
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Study - Beethoven
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T07:53:57Z
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6 Bagatelles, Op. 126: No. 1 in G Major
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso -
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Mozart zur Entspannung
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track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze. Andante
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track: Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
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Piano Sonata No. 12 in F Major, K. 332: II. Adagio
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Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
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by artist: Jukka-Pekka Saraste
by artist: Scottish Chamber Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
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Piano Sonata No. 13 in B-Flat Major, K. 333: II. Andante cantabile
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Piano Sonata No. 13 in B-Flat Major, K. 333: II. Andante cantabile
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Serenade No. 11 in E-Flat Major, K. 375: III. Adagio
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by artist: Berlin Philharmonic Wind Ensemble
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Serenade No. 11 in E-Flat Major, K. 375: III. Adagio
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Adagio in C Major, K. 356
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by artist: Walter Gieseking
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: Adagio in C Major, K. 356
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Violin Concerto No. 3 in G Major, K. 216: II. Adagio
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by artist: The Deutsche Kammerphilharmonie Bremen
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: Violin Concerto No. 3 in G Major, K. 216: II. Adagio
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Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": III. Adagio
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by artist: Berlin Philharmonic Wind Ensemble
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: Serenade No. 10 in B-Flat Major, K. 361 "Gran Partita": III. Adagio
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Piano Concerto No. 20 in D Minor, K. 466: II. Romanze
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Piano Concerto No. 20 in D Minor, K. 466: II. Romanze
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Piano Concerto No. 24 in C Minor K. 491 (Cadenza by Pletnev): II. Larghetto
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Flute Quartet No. 1 in D Major, K. 285: II. Adagio
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Piano Concerto No. 7 in F Major, K. 242: II. Adagio
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Piano Sonata No. 4 in E-Flat Major, K. 282: I. Adagio
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Piano Concerto No. 26 in D Major, K. 537 "Coronation": II. Larghetto
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Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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track: Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
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track: Bach, JS: Goldberg Variations, BWV 988: Variation X. Fughetta
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track: Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 1, Chor. "Kommt, ihr Töchter helft mir klagen"
track: Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 6, Aria. "Buß und Reu"
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track: Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 68, Chor. "Wir setzen uns mit Tränen nieder"
track: Bach: Arioso (Arr. Cortot After Harpsichord Concerto No. 5 in F Minor, BWV 1056)
track: Bach, JS: Concerto for 4 Pianos in A Minor, BWV 1065: I. Allegro
track: Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
track: Bach, JS: Schemellis Musicalisches Gesang-Buch: Mein Jesu! Was vor Seelenweh, BWV 487

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  additional property: Acousticness
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  additional property: Instrumentalness
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    value: 0.442
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.865
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
type: MusicRecording
duration: PT4M56S
duration ms: 296920
explicit: false
by artist: Johann Sebastian Bach
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC8400246
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x01578c6f3884447b295f8b821eaad7ba5e39faa99a2247531b2ca9d3750c32c1
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8400246
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x01578c6f3884447b295f8b821eaad7ba5e39faa99a2247531b2ca9d3750c32c1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAYC8400246.
  date published: 2026-07-06T06:56:49Z
audio: Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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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: Key Name
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Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. —
type: MusicRecording
duration: PT6M26S
duration ms: 386253
explicit: false
by artist: Johann Sebastian Bach
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
by artist: George Malcolm
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC8500657
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957043
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8500657
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:52:39Z
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 0x602b8febcb83b0a8037c2b44f3773a4dcfb47a6cfe28a8e7597df49d05927af3. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBAYC8500657.
  date published: 2026-07-07T13:52:39Z
audio: Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. —
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.631
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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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: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
type: MusicRecording
duration: PT4M39S
duration ms: 279360
explicit: false
by artist: Johann Sebastian Bach
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
by artist: Ian Watson
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC8300192
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T09:43:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d8f8dff533a271c82fc72065b088c5af0a78cc3e84d9c329361664b4f2cd70d
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/GBAYC8300192
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8f8dff533a271c82fc72065b088c5af0a78cc3e84d9c329361664b4f2cd70d. 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/GBAYC8300192.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.381
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.214
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Bach, JS / Arr. Kempff: Flute Sonata No. 2 in E-Flat Major, BWV 1031: II. Siciliano
type: MusicRecording
duration: PT3M53S
duration ms: 233453
explicit: false
by artist: Johann Sebastian Bach
by artist: Andrew von Oeyen
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC2100077
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:25:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d89c1be379a7123db2facebb9cbe6e31111769007b421c1af37b07e3cdcde1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2100077
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x1d89c1be379a7123db2facebb9cbe6e31111769007b421c1af37b07e3cdcde1d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAYC2100077.
  date published: 2026-06-13T15:41:10Z
audio: Bach, JS / Arr. Kempff: Flute Sonata No. 2 in E-Flat Major, BWV 1031: II. Siciliano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.941
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.371
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.37
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Bach, JS: Herz und Mund und Tat und Leben, BWV 147: Choral. "Jesus bleibet meine Freude, Meines Herzen Lust und Saft"
type: MusicRecording
duration: PT3M35S
duration ms: 215760
explicit: false
by artist: Johann Sebastian Bach
by artist: Choir of King's College, Cambridge
by artist: David Willcocks
by artist: Academy of St. Martin in the Fields
by artist: Sir David Willcocks
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC1902088
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0a90d10dbdd8250deebc6759b4c36366503c3e1dcd990d4e5452b3643f8bf02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/GBAYC1902088
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a90d10dbdd8250deebc6759b4c36366503c3e1dcd990d4e5452b3643f8bf02. 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/GBAYC1902088.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: Herz und Mund und Tat und Leben, BWV 147: Choral. "Jesus bleibet meine Freude, Meines Herzen Lust und Saft"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.781
  additional property: Musical Key
    type: PropertyValue
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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: 0.191
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.222
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.08
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
type: MusicRecording
duration: PT2M52S
duration ms: 172586
explicit: false
by artist: Johann Sebastian Bach
by artist: Gautier Capuçon
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC2101096
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T22:54:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79a616b47d31b3136902a89ab2e38893cd2d28d86946f532c6d1d872e818c9b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2101096
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x79a616b47d31b3136902a89ab2e38893cd2d28d86946f532c6d1d872e818c9b4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAYC2101096.
  date published: 2026-07-02T03:30:09Z
audio: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.242
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.873
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.228
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.142
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: V. Menuets I & II
type: MusicRecording
duration: PT3M43S
duration ms: 223573
explicit: false
by artist: Johann Sebastian Bach
by artist: Gautier Capuçon
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC2101619
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2101619
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
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
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  date published: 2026-07-07T16:07:00Z
audio: Bach, JS: Cello Suite No. 1 in G Major, BWV 1007: V. Menuets I & II
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Bach, JS: Concerto for 2 Pianos in C Minor, BWV 1060: II. Adagio
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by artist: David Fray
by artist: Emmanuel Christien
by artist: Orchestre National Du Capitole De Toulouse
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adb153cc3360e2e1f7e9883cff98728fecb1078a9ed3b7eeee2bdcf27bb603c. 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/GBAYC1801239.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Concerto for 2 Pianos in C Minor, BWV 1060: II. Adagio
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 11 in F Major, BWV 880: I. Prelude
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by artist: Piotr Anderszewski
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60006fc6e1e5f37419fd402cd82ba2dd816c9a14561dbab39d878468669be35e. 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/GBAYC2003004.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 11 in F Major, BWV 880: I. Prelude
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Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 17 in A-Flat Major, BWV 886: I. Prelude
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by artist: Piotr Anderszewski
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genre: classical
genre: classical-piano
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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: Bach, JS: Well-Tempered Clavier, Book 2, Prelude and Fugue No. 17 in A-Flat Major, BWV 886: I. Prelude
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Bach, JS: Sonata for Solo Violin No. 2 in A Minor, BWV 1003: III. Andante
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by artist: Johann Sebastian Bach
by artist: Augustin Hadelich
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genre: classical
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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: Bach, JS: Sonata for Solo Violin No. 2 in A Minor, BWV 1003: III. Andante
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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by artist: Renaud Capuçon
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Bach, JS: Goldberg Variations, BWV 988: Variation X. Fughetta
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by artist: Beatrice Rana
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genre: classical
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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: Bach, JS: Goldberg Variations, BWV 988: Variation X. Fughetta
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Bach, JS: Goldberg Variations, BWV 988: Variation XXVIII
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by artist: Beatrice Rana
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aefbfbd9e04062d7d925a860c97440ab5b3f0d82ef0b4cede1c39ef19bc0a32. 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/GBAYC1602296.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Goldberg Variations, BWV 988: Variation XXVIII
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  additional property: Tempo (BPM)
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Bach, JS: Concerto for Two Violins in D Minor, BWV 1043: II. Largo ma non tanto
type: MusicRecording
duration: PT7M43S
duration ms: 463213
explicit: false
by artist: Johann Sebastian Bach
by artist: Anne-Sophie Mutter
by artist: Leslie Pearson
by artist: Salvatore Accardo
by artist: English Chamber Orchestra
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC8200133
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200133
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x9bdeef421bf5e603427e5d07ab8a9e8968e483fa3a4326e79830812e8530a2a8. 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/GBAYC8200133.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Concerto for Two Violins in D Minor, BWV 1043: II. Largo ma non tanto
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air (Arr. Yang for Guitar)
type: MusicRecording
duration: PT4M3S
duration ms: 243946
explicit: false
by artist: Johann Sebastian Bach
by artist: Xuefei Yang
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: GBAYC1105179
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1105179
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xed5f7ad160a62f3790a624405c76c0f05074eefa94770279b3df123c62f9b09a. 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/GBAYC1105179.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air (Arr. Yang for Guitar)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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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)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 1, Chor. "Kommt, ihr Töchter helft mir klagen"
type: MusicRecording
duration: PT6M40S
duration ms: 400613
explicit: false
by artist: Johann Sebastian Bach
by artist: Nikolaus Harnoncourt
by artist: Arnold Schoenberg Chor
by artist: Vienna Boys' Choir
by artist: Concentus Musicus Wien
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: DEA800026501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DEA800026501
additional property: OTSTimestamp
  type: PropertyValue
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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 0x472aed4d4cc4d23215b46f65b59db19405864e10660cb961b67704c32c4f0983. 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/DEA800026501.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 1, Chor. "Kommt, ihr Töchter helft mir klagen"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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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)
    type: PropertyValue
    value: -22.225
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 6, Aria. "Buß und Reu"
type: MusicRecording
duration: PT4M47S
duration ms: 287333
explicit: false
by artist: Johann Sebastian Bach
by artist: Nikolaus Harnoncourt
by artist: Bernarda Fink
by artist: Concentus Musicus Wien
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: DEA800026506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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 0x2c73d63b30d512822a2ac2ecb3bd7a54477135663a19a51f560be559795d2259. 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/DEA800026506.
  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Matthäus-Passion, BWV 244, Pt. 1: No. 6, Aria. "Buß und Reu"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 30, Aria mit Chor. "Ach, nun ist mein Jesus hin!"
type: MusicRecording
duration: PT3M47S
duration ms: 227493
explicit: false
by artist: Johann Sebastian Bach
by artist: Nikolaus Harnoncourt
by artist: Arnold Schoenberg Chor
by artist: Vienna Boys' Choir
by artist: Bernarda Fink
by artist: Concentus Musicus Wien
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: DEA800026530
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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 0x028f1b17cb0010f973d614b9f2eb49fdb9cf5a825b08e9cde6ac285ba99c576f. 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/DEA800026530.
  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 30, Aria mit Chor. "Ach, nun ist mein Jesus hin!"
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  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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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: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 39, Aria. "Erbarme dich"
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duration: PT6M2S
duration ms: 362186
explicit: false
by artist: Johann Sebastian Bach
by artist: Nikolaus Harnoncourt
by artist: Bernarda Fink
by artist: Concentus Musicus Wien
in album: Bach: Masterpieces
  type: MusicAlbum
  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: DEA800026539
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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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 0xa5fd75a395478b7597dc3a509d7bd0cd91a04727f461dc93c42a9b87f6ad333e. 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/DEA800026539.
  date published: 2026-07-08T03:20:19Z
audio: Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 39, Aria. "Erbarme dich"
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 68, Chor. "Wir setzen uns mit Tränen nieder"
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duration ms: 309986
explicit: false
by artist: Johann Sebastian Bach
by artist: Nikolaus Harnoncourt
by artist: Arnold Schoenberg Chor
by artist: Vienna Boys' Choir
by artist: Concentus Musicus Wien
in album: Bach: Masterpieces
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  date published: 2023-12-21
genre: classical
genre: classical-piano
isrc code: DEA800026568
additional property: CopyrightID
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Matthäus-Passion, BWV 244, Pt. 2: No. 68, Chor. "Wir setzen uns mit Tränen nieder"
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Bach: Arioso (Arr. Cortot After Harpsichord Concerto No. 5 in F Minor, BWV 1056)
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by artist: Johann Sebastian Bach
by artist: Dong Hyek Lim
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Bach: Arioso (Arr. Cortot After Harpsichord Concerto No. 5 in F Minor, BWV 1056)
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Bach, JS: Concerto for 4 Pianos in A Minor, BWV 1065: I. Allegro
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by artist: Audrey Vigoureux
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by artist: Jacques Rouvier
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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: Bach, JS: Concerto for 4 Pianos in A Minor, BWV 1065: I. Allegro
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Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
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by artist: Andrei Gavrilov
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: John Constable
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Bach, JS: Piano Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Bach, JS: Schemellis Musicalisches Gesang-Buch: Mein Jesu! Was vor Seelenweh, BWV 487
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by artist: Sabine Devieilhe
by artist: Ensemble Pygmalion
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Bach, JS: Schemellis Musicalisches Gesang-Buch: Mein Jesu! Was vor Seelenweh, BWV 487
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