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album: Bach: Ich hatte viel Bekümmernis, BWV 21
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  track: Ave verum corpus, K. 618
  track: 6 Lieder, Op. 50: No. 2. Der Jager Abschied
  track: Meerstern ich dich grusse
  track: Nachthelle, Op. 134, D. 892
  track: Jesu, du mein liebstes Leben, BWV 356
  track: Hymne an die Nacht
  track: Tantum ergo, D. 962
  track: So nimm denn meine Hande
  track: Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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  track: Es loscht das Meer die Sonne aus
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  track: Offertory: Intende voci, D. 963
  track: Ave Maria, Op. 533: Nun ist der laute Tag verhallt
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Oboe Concerto in D Minor, Op. 8, No. 9, RV 454: I. Allegro moderato
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Oboe Concerto in D Minor, Op. 8, No. 9, RV 454: II. Largo
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Harpsichord Concerto No. 2 in E Major, BWV 1053: II. Siciliano
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Concerto for Harpsichord No. 6 in F Major, BWV 1057: III. Allegro assai
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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/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331406851
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b811a21570e7f3d6481634e0ce5f236d36310939281e7f0c5ef9e57e27303f7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331406851.
  date published: 2026-06-13T17:25:41Z
audio: Concerto for Harpsichord No. 6 in F Major, BWV 1057: III. Allegro assai
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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: Mode Name
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Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto
type: MusicRecording
duration: PT5M30S
duration ms: 330466
explicit: false
by artist: Johann Sebastian Bach
by artist: Christine Schornsheim
by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 26
genre: classical
genre: classical-piano
isrc code: NLY331406844
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/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331406844
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc52dc547ee7a7cd7ff70e625a8367ef4754acb3887a4641aca32d2d3f92464. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLY331406844.
  date published: 2026-06-13T12:53:06Z
audio: Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto
  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
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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
    type: PropertyValue
    value: 0.052
  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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Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
type: MusicRecording
duration: PT2M27S
duration ms: 147666
explicit: false
by artist: Johann Sebastian Bach
by artist: Christine Schornsheim
by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 22
genre: classical
genre: classical-piano
isrc code: NLY331406847
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T17:55:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a14f1339de31c6e5953eb3eb7c422061ed1bc36f1a0203a9dca1b3963518316
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/NLY331406847
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a14f1339de31c6e5953eb3eb7c422061ed1bc36f1a0203a9dca1b3963518316. 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/NLY331406847.
  date published: 2026-06-13T13:32:09Z
audio: Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
  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
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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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  additional property: Mode Name
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Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e piano sempre
type: MusicRecording
duration: PT5M12S
duration ms: 312960
explicit: false
by artist: Johann Sebastian Bach
by artist: Christine Schornsheim
by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331406841
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T08:52:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd4689be03c4cea7ae68158b74f644296aa544b633542648a0cc96f7a9f684d0
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/NLY331406841
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4689be03c4cea7ae68158b74f644296aa544b633542648a0cc96f7a9f684d0. 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/NLY331406841.
  date published: 2026-06-13T13:32:09Z
audio: Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e piano sempre
  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
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.147
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.482
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Acousticness
type: PropertyValue
value: 0.973

Instrumentalness
type: PropertyValue
value: 0.001

Liveness
type: PropertyValue
value: 0.117

Valence (Positivity)
type: PropertyValue
value: 0.138

Loudness (dB)
type: PropertyValue
value: -27.198

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Ave verum corpus, K. 618
type: MusicRecording
duration: PT2M44S
duration ms: 164600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Vienna Boys' Choir
by artist: Chorus Viennensis
by artist: Vienna Volksoper Orchestra
by artist: Peter Marschik
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 4
genre: classical
genre: classical-era
isrc code: DEB261201522
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:31:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3c64e46a104b303b988eec3b07f481da5246d178d702db1892dec0cf8c3c4f5
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/DEB261201522
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 0xb3c64e46a104b303b988eec3b07f481da5246d178d702db1892dec0cf8c3c4f5. 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/DEB261201522.
  date published: 2026-07-08T03:20:19Z
audio: Ave verum corpus, K. 618
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.568
  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: 0.088
  additional property: Energy
    type: PropertyValue
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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
    type: PropertyValue
    value: 0.246
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  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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6 Lieder, Op. 50: No. 2. Der Jager Abschied
type: MusicRecording
duration: PT2M54S
duration ms: 174320
explicit: false
by artist: Felix Mendelssohn
by artist: Berlin Radio Chorus, male section
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: USB8U1013720
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:55:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x246d0230454a16c93443f731bb42ab4245af023b62e7b8d2e04dc2360c8f195c
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/USB8U1013720
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 0x246d0230454a16c93443f731bb42ab4245af023b62e7b8d2e04dc2360c8f195c. 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/USB8U1013720.
  date published: 2026-07-08T03:53:27Z
audio: 6 Lieder, Op. 50: No. 2. Der Jager Abschied
  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)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.249
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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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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Meerstern ich dich grusse
type: MusicRecording
duration: PT1M50S
duration ms: 110360
explicit: false
by artist: Traditional
by artist: Regensburg Cathedral Choir
by artist: Roland Buechner
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 3
genre: bhajan
genre: gregorian-chant
genre: medieval
genre: traditional-music
isrc code: DEB261201515
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:15:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5618bfcf51b3c7659ef21a04af3d5ea2f5b8185fb70ac6479a6f27c6aeb5c8b9
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/DEB261201515
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
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  date published: 2026-07-08T03:20:19Z
audio: Meerstern ich dich grusse
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Nachthelle, Op. 134, D. 892
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by artist: Dietrich Knothe
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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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Jesu, du mein liebstes Leben, BWV 356
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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: Jesu, du mein liebstes Leben, BWV 356
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Hymne an die Nacht
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popularity: 2
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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: Hymne an die Nacht
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Tantum ergo, D. 962
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Tantum ergo, D. 962
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So nimm denn meine Hande
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: So nimm denn meine Hande
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Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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popularity: 2
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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Rosamunde, D. 797: Hirtenchor
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by artist: Helmut Froschauer
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popularity: 1
genre: classical
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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 0x784451057ddc6dea8868337722452a0f45251498b19b557f5d3cb8461effea31. 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/USB8U1014777.
  date published: 2026-07-08T03:53:27Z
audio: Rosamunde, D. 797: Hirtenchor
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Vesperae solennes de confessore, K. 339: Laudate Dominum
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duration: PT4M10S
duration ms: 250000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mária Zádori
by artist: Jeunesses Musicales Chorus
by artist: Budapest Philharmonic Orchestra
by artist: Iván Fischer
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 3
genre: classical
genre: classical-era
isrc code: DEB261201505
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f5efe6bc3645c3ec0802ad8fa596d5607f9f2ac003ed07c4a3c0f9e4b9255. 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/DEB261201505.
  date published: 2026-07-08T03:53:27Z
audio: Vesperae solennes de confessore, K. 339: Laudate Dominum
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Es loscht das Meer die Sonne aus
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duration: PT3M34S
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explicit: false
by artist: Friedrich Silcher
by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
isrc code: USB8U1014894
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additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014894
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e115a6a5c71c500699a556ad1cdc1bb3f0568d5ee5a220fbcff9d36cfd9d7. 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/USB8U1014894.
  date published: 2026-07-08T03:20:19Z
audio: Es loscht das Meer die Sonne aus
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In dulci jubilo, BWV 368
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duration: PT2M35S
duration ms: 155280
explicit: false
by artist: Johann Sebastian Bach
by artist: Rostock Motet Choir
by artist: Leipzig Capella Fidicinia
by artist: Hartwig Eschenburg
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 3
genre: classical
genre: classical-piano
isrc code: USB8U1011255
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0x36d4e5eafe86f5330f9dbb9c72a473d79383907d1303bab5ec53fb629dc94781. 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/USB8U1011255.
  date published: 2026-07-08T03:20:19Z
audio: In dulci jubilo, BWV 368
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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Das Dorfchen, Op. 11, No. 1, D. 598
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duration: PT4M28S
duration ms: 268240
explicit: false
by artist: Franz Schubert
by artist: Bernd Casper
by artist: Berlin Radio Chorus, male section
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USB8U1014766
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0x63652a11d99b6e29d46a19d0d22a731f1671face6e97b462c63affcfdba7c679. 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/USB8U1014766.
  date published: 2026-07-08T03:22:41Z
audio: Das Dorfchen, Op. 11, No. 1, D. 598
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Jesu, meines Herzens Freud, BWV 361
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duration: PT3M6S
duration ms: 186400
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by artist: Rostock Motet Choir
by artist: Leipzig Capella Fidicinia
by artist: Hartwig Eschenburg
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 2
genre: classical
genre: classical-piano
isrc code: DEB261201502
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
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Jesu, meines Herzens Freud, BWV 361
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Offertory: Intende voci, D. 963
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by artist: Peter Schreier
by artist: Rundfunkchor Berlin
by artist: Berlin Radio Symphony Orchestra
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEB261201539
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: 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: Offertory: Intende voci, D. 963
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Ave Maria, Op. 533: Nun ist der laute Tag verhallt
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by artist: Hans-Joachim Ribbe
by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 2
isrc code: USB8U1012563
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: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Ave Maria, Op. 533: Nun ist der laute Tag verhallt
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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: Die Nacht, Op. 17, No. 4, D. 983c
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Mozart: Complete Divertimenti & Serenades
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T06:56:49Z
  audio: Divertimento in D Major, K. 136: I. Allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Divertimento in F Major, K. 138: III. Presto
track: Divertimento in D Major, K. 334: VI. Rondo. Allegro
track: Notturno in D Major, K. 286: I. Andante
track: Notturno in D Major, K. 286: III. Menuetto
track: Ein Musikalischer Spaß in F Major, K. 522 "Dorfmusikantenssextett": IV. Presto
track: Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": II. Romance. Andante
track: Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": III. Menuetto
track: Cassation in G Major, K. 63: I. Marche
track: Cassation in G Major, K. 63: III. Andante
track: Cassation in G Major, K. 63: IV. Menuett
track: Cassation in G Major, K. 63: V. Adagio
track: Cassation in G Major, K. 63: VI. Menuett
track: Cassation in G Major, K. 63: VII. Finale. Allegro Assai
track: Cassation in B-Flat Major, K. 99: I. Marcia
track: Cassation in B-Flat Major, K. 99: III. Andante
track: Cassation in B-Flat Major, K. 99: IV. Menuett
track: Cassation in B-Flat Major, K. 99: VI. Menuett
track: Cassation in B-Flat Major, K. 99: VII. Allegro
track: Divertimento in D Major, K. 251: V. Rondeau. Allegro Assai
track: Divertimento in D Major, K. 205: I. Largo
track: Divertimento in D Major, K. 205: II. Menuetto
track: Divertimento in D Major, K. 205: IV. Adagio

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Divertimento in F Major, K. 138: III. Presto
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Divertimento in D Major, K. 334: VI. Rondo. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Divertimento in D Major, K. 334: VI. Rondo. Allegro
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Notturno in D Major, K. 286: I. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Notturno in D Major, K. 286: I. Andante
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Notturno in D Major, K. 286: III. Menuetto
type: MusicRecording
duration: PT5M13S
duration ms: 313880
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
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  date published: 2024-06-12
popularity: 5
genre: classical
genre: classical-era
isrc code: NLY331410446
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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
  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 0xb02acf8069681fa635078226e841d03d403c2aed29004e2404a42e03e93df898. 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/NLY331410446.
  date published: 2026-07-08T08:56:20Z
audio: Notturno in D Major, K. 286: III. Menuetto
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Ein Musikalischer Spaß in F Major, K. 522 "Dorfmusikantenssextett": IV. Presto
type: MusicRecording
duration: PT4M1S
duration ms: 241266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410450
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
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331410450
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 0x661e6e8e519da63f5641315b88e19c6ccefdb3f385af0ab892f6f66193de471b. 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/NLY331410450.
  date published: 2026-07-08T03:53:27Z
audio: Ein Musikalischer Spaß in F Major, K. 522 "Dorfmusikantenssextett": IV. Presto
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    type: PropertyValue
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Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": II. Romance. Andante
type: MusicRecording
duration: PT4M36S
duration ms: 276320
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410452
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331410452
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 0x1f1b33efe44933a07c2c01db252194c7bbb0fca1b35521ac86a32a0d1b111dc0. 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/NLY331410452.
  date published: 2026-07-08T03:53:27Z
audio: Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": II. Romance. Andante
  type: AudioObject
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  additional property: Musical Key
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  additional property: Acousticness
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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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Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": III. Menuetto
type: MusicRecording
duration: PT1M41S
duration ms: 101853
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410453
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
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e5afdaa44708a3b363e31e2fc9d9a1cc00729fa83685899e89e4d5508b457b. 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/NLY331410453.
  date published: 2026-07-08T03:53:27Z
audio: Serenade in G Major, K. 525 "Eine, kleine Nachtmusik": III. Menuetto
  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: 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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Cassation in G Major, K. 63: I. Marche
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duration: PT2M59S
duration ms: 179866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410455
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331410455
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 0xb16f3316bb2926163ad55a4dc232fc1b1104a49f43f9041916c547e7b2d14bac. 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/NLY331410455.
  date published: 2026-07-08T03:22:41Z
audio: Cassation in G Major, K. 63: I. Marche
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  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: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.894
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.741
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.287
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.249
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Cassation in G Major, K. 63: III. Andante
type: MusicRecording
duration: PT3M33S
duration ms: 213573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410457
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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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331410457
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 0x9a09a222798578f389ec9cd8b051ffab8dfa506c43adab9b11ee70463722d641. 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/NLY331410457.
  date published: 2026-07-08T03:22:41Z
audio: Cassation in G Major, K. 63: III. Andante
  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: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.826
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.132
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.263
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.239
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in G Major, K. 63: IV. Menuett
type: MusicRecording
duration: PT3M2S
duration ms: 182906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410458
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
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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 0x2f7687eb3fe9c69ec5774885c1f1c18adc952a949e0cd3b28cd38fa48e71e4ce. 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/NLY331410458.
  date published: 2026-07-08T08:56:20Z
audio: Cassation in G Major, K. 63: IV. Menuett
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.069
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.382
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.929
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.463
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.721
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in G Major, K. 63: V. Adagio
type: MusicRecording
duration: PT5M9S
duration ms: 309506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410459
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:20:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf96c634d698edd799dc90147ff1d2324a98ce1c2bf5df68472099d7aa61c8bc
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/NLY331410459
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 0xdf96c634d698edd799dc90147ff1d2324a98ce1c2bf5df68472099d7aa61c8bc. 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/NLY331410459.
  date published: 2026-07-08T03:53:27Z
audio: Cassation in G Major, K. 63: V. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.072
  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: 0.287
  additional property: Energy
    type: PropertyValue
    value: 0.036
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.837
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.113
  additional property: Liveness
    type: PropertyValue
    value: 0.187
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.881
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in G Major, K. 63: VI. Menuett
type: MusicRecording
duration: PT2M51S
duration ms: 171706
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 3
genre: classical
genre: classical-era
isrc code: NLY331410460
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:08:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x592967ddca77667ee5696c8b704884754f09d8de1f9480c718f1d4a9d7f91164
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/NLY331410460
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 0x592967ddca77667ee5696c8b704884754f09d8de1f9480c718f1d4a9d7f91164. 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/NLY331410460.
  date published: 2026-07-08T03:22:41Z
audio: Cassation in G Major, K. 63: VI. Menuett
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.256
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.501
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.944
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.609
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.242
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in G Major, K. 63: VII. Finale. Allegro Assai
type: MusicRecording
duration: PT1M48S
duration ms: 108106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 4
genre: classical
genre: classical-era
isrc code: NLY331410461
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:43:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5be686f11e1f8f50224addc5a0bd0db258ce57fc5b3d3622497587e88e8baf5
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/NLY331410461
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 0xd5be686f11e1f8f50224addc5a0bd0db258ce57fc5b3d3622497587e88e8baf5. 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/NLY331410461.
  date published: 2026-07-08T03:20:19Z
audio: Cassation in G Major, K. 63: VII. Finale. Allegro Assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.876
  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: 0.67
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.827
  additional property: Liveness
    type: PropertyValue
    value: 0.063
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.666
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.095
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in B-Flat Major, K. 99: I. Marcia
type: MusicRecording
duration: PT2M37S
duration ms: 157520
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 3
genre: classical
genre: classical-era
isrc code: NLY331410462
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:06:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9a392bfec51b964682496ea65f265c3b204938ad1c1b52f8a8afec55c238d7e
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/NLY331410462
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 0xc9a392bfec51b964682496ea65f265c3b204938ad1c1b52f8a8afec55c238d7e. 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/NLY331410462.
  date published: 2026-07-08T03:53:27Z
audio: Cassation in B-Flat Major, K. 99: I. Marcia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.546
  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: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.076
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.893
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.377
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.469
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in B-Flat Major, K. 99: III. Andante
type: MusicRecording
duration: PT3M21S
duration ms: 201293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 3
genre: classical
genre: classical-era
isrc code: NLY331410464
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:17:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb65e1fa52fb426e2050eb92af8f5e9ff1747e7f43b6e0db7ac4f9bbddc59eba6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331410464
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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 0xb65e1fa52fb426e2050eb92af8f5e9ff1747e7f43b6e0db7ac4f9bbddc59eba6. 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/NLY331410464.
  date published: 2026-07-08T08:56:20Z
audio: Cassation in B-Flat Major, K. 99: III. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.037
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.364
  additional property: Energy
    type: PropertyValue
    value: 0.019
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.306
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in B-Flat Major, K. 99: IV. Menuett
type: MusicRecording
duration: PT2M6S
duration ms: 126266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 3
genre: classical
genre: classical-era
isrc code: NLY331410465
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:50:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x815dd889cfa393a738e5d868733c1e52aed8fe7308069d7be98e68095b5fe9a9
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/NLY331410465
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 0x815dd889cfa393a738e5d868733c1e52aed8fe7308069d7be98e68095b5fe9a9. 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/NLY331410465.
  date published: 2026-07-08T03:53:27Z
audio: Cassation in B-Flat Major, K. 99: IV. Menuett
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.23
  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: 0.687
  additional property: Energy
    type: PropertyValue
    value: 0.072
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.928
  additional property: Liveness
    type: PropertyValue
    value: 0.198
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.552
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.457
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cassation in B-Flat Major, K. 99: VI. Menuett
type: MusicRecording
duration: PT1M56S
duration ms: 116840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kurpfälzisches Kammerorchester Mannheim
by artist: Florian Heyerick
in album: Mozart: Complete Divertimenti & Serenades
  type: MusicAlbum
  date published: 2024-06-12
popularity: 3
genre: classical
genre: classical-era
isrc code: NLY331410467
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:03:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1c3ea3dd94bd34ea0d463b5abc170c22bdd6b644a682cd61c7fcc9b3437439f
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/NLY331410467
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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: Cassation in B-Flat Major, K. 99: VI. Menuett
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Cassation in B-Flat Major, K. 99: VII. Allegro
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by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
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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: Cassation in B-Flat Major, K. 99: VII. Allegro
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Divertimento in D Major, K. 251: V. Rondeau. Allegro Assai
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by artist: Burkhard Glaetzner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Divertimento in D Major, K. 251: V. Rondeau. Allegro Assai
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Divertimento in D Major, K. 205: I. Largo
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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: Divertimento in D Major, K. 205: I. Largo
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Divertimento in D Major, K. 205: II. Menuetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Divertimento in D Major, K. 205: II. Menuetto
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Divertimento in D Major, K. 205: IV. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Divertimento in D Major, K. 205: IV. Adagio
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Johann Christoph Friedrich Bach: 3 Symphonies
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    date published: 2026-07-08T08:56:20Z
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Vivaldi, A.: Oboe Concertos, Vol. 1 - Rv 184, 447, 449, 452, 453, 454
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track: Oboe Concerto in D Minor, Op. 8, No. 9, RV 454: I. Allegro moderato
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track: Violin Concerto in C Major, RV 184 (arr. for oboe and string orchestra): I. Allegro
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    date published: 2026-07-08T03:22:41Z
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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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  subject of: OpenTimestamps Proof of Existence
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track: Oboe Concerto in C Major, Op. 8, No. 12, RV 449: III. Allegro
track: Oboe Concerto in C Major, RV 447: I. Allegro non molto
track: Oboe Concerto in C Major, RV 447: II. Larghetto
track: Oboe Concerto in D Major, RV 453: III. Allegro
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Oboe Concerto in C Major, Op. 8, No. 12, RV 449: I. Allegro
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Oboe Concerto in C Major, Op. 8, No. 12, RV 449: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Oboe Concerto in C Major, Op. 8, No. 12, RV 449: III. Allegro
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Oboe Concerto in C Major, RV 447: I. Allegro non molto
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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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Oboe Concerto in C Major, RV 447: II. Larghetto
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  date published: 2026-07-08T03:22:41Z
audio: Oboe Concerto in C Major, RV 447: II. Larghetto
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  date published: 2026-07-08T08:56:20Z
audio: Oboe Concerto in D Major, RV 453: III. Allegro
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track: Italian Concerto in F Major, BWV 971: I. Allegro

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Orchestral Suite No. 2 in B Minor, BWV 1067: IV. Bourrée No. 1 - Bourrée No. 2
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Violin Concerto in E Major, BWV 1042: I. Allegro
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duration: PT7M10S
duration ms: 430693
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by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
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popularity: 31
genre: classical
genre: classical-piano
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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: 2026-06-13T12:47:07Z
audio: Violin Concerto in E Major, BWV 1042: I. Allegro
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Orchestral Suite No. 3 in D Major, BWV 1068: I. Ouverture
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by artist: Virtuosi Saxoniae
by artist: Ludwig Güttler
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popularity: 29
genre: classical
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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: 2026-06-13T15:41:10Z
audio: Orchestral Suite No. 3 in D Major, BWV 1068: I. Ouverture
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Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)
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by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
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popularity: 29
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: 2026-06-13T15:41:10Z
audio: Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. —
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by artist: Musica Amphion
by artist: Pieter-Jan Belder
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popularity: 28
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: 2026-06-13T17:25:41Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. —
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Partita No. 2 in C Minor, BWV 826: I. Sinfonia
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by artist: Pieter-Jan Belder
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popularity: 28
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: 2026-06-13T15:41:10Z
audio: Partita No. 2 in C Minor, BWV 826: I. Sinfonia
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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by artist: Musica Amphion
by artist: Pieter-Jan Belder
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popularity: 27
genre: classical
genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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by artist: Kristóf Baráti
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popularity: 27
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: 2026-06-13T17:25:41Z
audio: Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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by artist: Musica Amphion
by artist: Pieter-Jan Belder
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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by artist: Virtuosi Saxoniae
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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Flute Sonata in E Major, BWV 1035: III. Siciliana
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by artist: Jed Wentz
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popularity: 27
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Flute Sonata in E Major, BWV 1035: III. Siciliana
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Matthäus-Passion, BWV 244, Pt. 1: I. Chorus. Kommt, ihr Töchter, helft mir klagen
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popularity: 27
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Matthäus-Passion, BWV 244, Pt. 1: I. Chorus. Kommt, ihr Töchter, helft mir klagen
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Mass in B Minor, BWV 232, Pt. 2: III. Duet. Et in unum dominum (Soprano, Alto)
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popularity: 26
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: 2026-06-13T15:41:10Z
audio: Mass in B Minor, BWV 232, Pt. 2: III. Duet. Et in unum dominum (Soprano, Alto)
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Das wohltemperierte Klavier I, Prelude and Fugue No. 1 in C Major, BWV 845: I. Prelude
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by artist: Pieter-Jan Belder
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popularity: 26
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Das wohltemperierte Klavier I, Prelude and Fugue No. 1 in C Major, BWV 845: I. Prelude
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Goldberg Variations in G Major, BWV 988: I. Aria
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c949431882c0931b81f54b66ff855fd72e270dd88d7527eca5f2d9fe0277dc5. 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/NLY331407329.
  date published: 2026-06-13T15:41:10Z
audio: Goldberg Variations in G Major, BWV 988: I. Aria
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Jesu, nun sei gepreiset, BWV 41: I. Coro. Jesu, nun sei gepreiset
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duration: PT7M42S
duration ms: 462813
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 25
genre: classical
genre: classical-piano
isrc code: NLY331407909
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
  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 0x55a3d7c9a90fe82036b570505acc0ca8261764ff641df938efecd1e35b80ec64. 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/NLY331407909.
  date published: 2026-06-13T15:41:10Z
audio: Jesu, nun sei gepreiset, BWV 41: I. Coro. Jesu, nun sei gepreiset
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Ein' feste Burg ist unser Gott, BWV 80: I. Coro. Ein' Feste Burg ist unser Gott
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duration: PT5M16S
duration ms: 316426
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 24
genre: classical
genre: classical-piano
isrc code: NLY331408158
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
  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 0x28e0f728361b59986344aaed96904de8b0228eb458bfaa6cfd7aaeb42887f7d6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331408158.
  date published: 2026-06-13T17:25:41Z
audio: Ein' feste Burg ist unser Gott, BWV 80: I. Coro. Ein' Feste Burg ist unser Gott
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Matthäus-Passion, BWV 244, Pt. 2: XXXIX. Chorus. Wir setzen uns mit Tränen nieder
type: MusicRecording
duration: PT6M53S
duration ms: 413866
explicit: false
by artist: Johann Sebastian Bach
by artist: Gewandhausorchester
by artist: Rudolf Mauersberger
by artist: Erhard Mauersberger
by artist: Dresdner Kreuzchor
by artist: Thomanerchor Leipzig
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 25
genre: classical
genre: classical-piano
isrc code: NLY331409228
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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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0x599e49d7c04f8d3ca25780e58c17715a9b859dc3de1aabfa212cf07e572324fd. 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/NLY331409228.
  date published: 2026-06-13T15:41:10Z
audio: Matthäus-Passion, BWV 244, Pt. 2: XXXIX. Chorus. Wir setzen uns mit Tränen nieder
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Herz und Mund und Tat und Leben, BWV 147, Pt. 1: I. Coro. Herz und Mund und Tat und Leben (Coro)
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duration: PT4M29S
duration ms: 269586
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 24
genre: classical
genre: classical-piano
isrc code: NLY331408561
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
  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 0x84ff5dcb14a151a9b97be488fb4adbd300812ba04c006a24936b074ee114a305. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331408561.
  date published: 2026-06-13T17:25:41Z
audio: Herz und Mund und Tat und Leben, BWV 147, Pt. 1: I. Coro. Herz und Mund und Tat und Leben (Coro)
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Mass in B Minor, BWV 232, Pt. 1: II. Duet. Christe eleison (Two Sopranos)
type: MusicRecording
duration: PT5M21S
duration ms: 321360
explicit: false
by artist: Johann Sebastian Bach
by artist: Hillevi Martinpelto
by artist: Akademie für Alte Musik Berlin
by artist: René Jacobs
by artist: Bernarda Fink
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 24
genre: classical
genre: classical-piano
isrc code: NLY331408874
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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additional property: OTSVerificationAPI
  type: PropertyValue
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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 0xa9c11087896d98363c54e16862775b2598cb7d7e77941d5c4da194843d65652c. 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/NLY331408874.
  date published: 2026-06-13T13:32:09Z
audio: Mass in B Minor, BWV 232, Pt. 1: II. Duet. Christe eleison (Two Sopranos)
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  additional property: Danceability
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Johannes-Passion, BWV 245, Pt. 1: I. Chorus. Herr, unser Herrscher
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duration: PT7M53S
duration ms: 473400
explicit: false
by artist: Johann Sebastian Bach
by artist: Virtuosi Saxoniae
by artist: Ludwig Güttler
by artist: Hallenser Madrigalisten
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 24
genre: classical
genre: classical-piano
isrc code: NLY331409229
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: OTSBitcoinBlockVerifyURL
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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
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  date published: 2026-06-13T17:25:41Z
audio: Johannes-Passion, BWV 245, Pt. 1: I. Chorus. Herr, unser Herrscher
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Toccata and Fugue in D Minor, BWV 565: I. Toccata
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by artist: Stefano Molardi
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Toccata and Fugue in D Minor, BWV 565: II. Fugue
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by artist: Stefano Molardi
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Toccata and Fugue in D Minor, BWV 565: II. Fugue
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Passacaglia in C Minor, BWV 582
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by artist: Stefano Molardi
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Passacaglia in C Minor, BWV 582
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Orchestral Suite No. 4 in D Major, BWV 1069: I. Ouverture
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Orchestral Suite No. 4 in D Major, BWV 1069: I. Ouverture
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Violin Partita No. 2 in D Minor, BWV 1004: V. Ciaccona
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popularity: 22
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Violin Partita No. 2 in D Minor, BWV 1004: V. Ciaccona
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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popularity: 23
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Notenbüchlein für Anna Magdalena Bach: XXIV. Bist du bei mir, BWV 508 (Arr. J.S. Bach)
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popularity: 22
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Notenbüchlein für Anna Magdalena Bach: XXIV. Bist du bei mir, BWV 508 (Arr. J.S. Bach)
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Partita No. 1 in B-Flat Major, BWV 825: I. Prelude
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duration: PT1M59S
duration ms: 119866
explicit: false
by artist: Johann Sebastian Bach
by artist: Pieter-Jan Belder
in album: Top 50 Bach
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  date published: 2014-05-17
popularity: 21
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
  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 0x7180596ff26cb5250cfae4502aad4bea9a38080bd5c8ba9f30a11e9719789f00. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331407247.
  date published: 2026-06-13T17:25:41Z
audio: Partita No. 1 in B-Flat Major, BWV 825: I. Prelude
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Violin Concerto in A Minor, BWV 1041: II. Andante
type: MusicRecording
duration: PT6M18S
duration ms: 378106
explicit: false
by artist: Johann Sebastian Bach
by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 22
genre: classical
genre: classical-piano
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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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  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 0xe7c83e4873d2595d51d214ee360431937cec942a97bab41f010c9ac886572910. 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/NLY331406823.
  date published: 2026-06-13T15:41:10Z
audio: Violin Concerto in A Minor, BWV 1041: II. Andante
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Chromatic Fantasy and Fugue in D Minor, BWV 903: I. Fantasie
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duration: PT5M32S
duration ms: 332106
explicit: false
by artist: Johann Sebastian Bach
by artist: Pieter-Jan Belder
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
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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
  type: PropertyValue
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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: 2026-06-13T15:41:10Z
audio: Chromatic Fantasy and Fugue in D Minor, BWV 903: I. Fantasie
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Wie schön leuchtet der Morgenstern, BWV 1: I. Coro. Wie schön leuchtet der Morgenstern
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duration: PT7M18S
duration ms: 438960
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331407652
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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c18511ae25a754797c645f7a123611257239d4e3e180f3b841b250e8de99b0. 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/NLY331407652.
  date published: 2026-06-13T15:41:10Z
audio: Wie schön leuchtet der Morgenstern, BWV 1: I. Coro. Wie schön leuchtet der Morgenstern
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Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Coro. Jesu bleibet meine Freude
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duration: PT3M11S
duration ms: 191133
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 22
genre: classical
genre: classical-piano
isrc code: NLY331408570
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a93bc7b39bfa1d3d09cf5655ad15c526b1e3620eebd8f19345fe374c81319c9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331408570.
  date published: 2026-06-13T17:25:41Z
audio: Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Coro. Jesu bleibet meine Freude
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Concerto in D Minor for Two Violins, BWV 1043: II. Largo ma non tanto
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duration: PT7M10S
duration ms: 430973
explicit: false
by artist: Johann Sebastian Bach
by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 22
genre: classical
genre: classical-piano
isrc code: NLY331406832
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
  type: PropertyValue
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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 0x1d6697de000e876fc5bf5bb7a57d5cebbdad8e337dd4ef657ede347983a3f11a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331406832.
  date published: 2026-06-13T17:25:41Z
audio: Concerto in D Minor for Two Violins, BWV 1043: II. Largo ma non tanto
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Wachet! Betet! Betet! Wachet!, BWV 70, Pt. 1: I. Coro. Wachet! Betet! Betet! Wachet!
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duration: PT4M5S
duration ms: 245893
explicit: false
by artist: Johann Sebastian Bach
by artist: Netherlands Bach Collegium
by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331408081
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
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Wachet! Betet! Betet! Wachet!, BWV 70, Pt. 1: I. Coro. Wachet! Betet! Betet! Wachet!
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Mass in B Minor, BWV 232, Pt. 1: VIII. Duet. Domine Deus (Soprano, Tenor)
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duration: PT5M28S
duration ms: 328693
explicit: false
by artist: Johann Sebastian Bach
by artist: Hillevi Martinpelto
by artist: Akademie für Alte Musik Berlin
by artist: René Jacobs
by artist: Christoph Prégardien
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  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
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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: 2026-06-13T17:25:41Z
audio: Mass in B Minor, BWV 232, Pt. 1: VIII. Duet. Domine Deus (Soprano, Tenor)
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Erbarm dich mein, o Herre Gott, BWV 721
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duration: PT3M37S
duration ms: 217000
explicit: false
by artist: Johann Sebastian Bach
by artist: Stefano Molardi
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  date published: 2014-05-17
popularity: 21
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: 2026-06-13T13:32:09Z
audio: Erbarm dich mein, o Herre Gott, BWV 721
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Komm, Jesu, komm, BWV 229
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by artist: Chamber Choir Of Europe
by artist: European Chamber Soloists
by artist: Nicol Matt
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  date published: 2014-05-17
popularity: 21
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: 2026-06-13T15:41:10Z
audio: Komm, Jesu, komm, BWV 229
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Matthäus-Passion, BWV 244, Pt. 1: VIII. Aria. Blute nur, du liebes Herz! (Soprano)
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duration: PT4M44S
duration ms: 284400
explicit: false
by artist: Johann Sebastian Bach
by artist: Gewandhausorchester
by artist: Rudolf Mauersberger
by artist: Erhard Mauersberger
by artist: Adele Stolte
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  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
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: 2026-06-13T15:41:10Z
audio: Matthäus-Passion, BWV 244, Pt. 1: VIII. Aria. Blute nur, du liebes Herz! (Soprano)
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Matthäus-Passion, BWV 244, Pt. 2: XX. Aria. Aus Liebe will mein Heiland sterben (Soprano)
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by artist: Gewandhausorchester
by artist: Rudolf Mauersberger
by artist: Erhard Mauersberger
by artist: Adele Stolte
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  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
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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: 2026-06-13T13:32:09Z
audio: Matthäus-Passion, BWV 244, Pt. 2: XX. Aria. Aus Liebe will mein Heiland sterben (Soprano)
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Italian Concerto in F Major, BWV 971: I. Allegro
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duration: PT4M9S
duration ms: 249333
explicit: false
by artist: Johann Sebastian Bach
by artist: Pieter-Jan Belder
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
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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: 2026-06-13T15:41:10Z
audio: Italian Concerto in F Major, BWV 971: I. Allegro
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J.S. Bach: Complete Concertos
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date published: 2016-05-06
track: Brandenburg Concerto No. 1 in F Major, BWV 1046: I. —
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  subject of: OpenTimestamps Proof of Existence
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track: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
track: Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
track: Violin Concerto in E Major, BWV 1042: I. Allegro
track: Violin Concerto in E Major, BWV 1042: II. Adagio
track: Violin Concerto in A Minor, BWV 1041: III. Allegro assai
track: Violin Concerto in G Minor, BWV 1056: II. Largo
track: Violin Concerto in G Minor, BWV 1056: III. Presto
track: Concerto for Two Violins and Orchestra in E Major, BWV 1043: I. Vivace
track: Harpsichord Concerto No. 1 in D Minor, BWV 1052: I. Allegro
track: Harpsichord Concerto No. 1 in D Minor, BWV 1052: II. Adagio
track: Harpsichord Concerto No. 2 in E Major, BWV 1053: I. —
track: Harpsichord Concerto No. 3 in D Major, BWV 1054: I. —
track: Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e Piano sempre
track: Harpsichord Concerto No. 4 in A Major, BWV 1055: I. Allegro
track: Harpsichord Concerto No. 5 in F Minor, BWV 1056: I. —
track: Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
track: Harpsichord Concerto No. 6. In F Major, BWV 1057: I. —
track: Concerto for Three Violins in D Major, BWV 1064R: I. Allegro
track: Concerto for Three Violins in D Major, BWV 1064R: II. Adagio

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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Violin Concerto in E Major, BWV 1042: I. Allegro
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Violin Concerto in E Major, BWV 1042: II. Adagio
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  date published: 2026-07-07T18:50:38Z
audio: Violin Concerto in E Major, BWV 1042: II. Adagio
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Violin Concerto in A Minor, BWV 1041: III. Allegro assai
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Violin Concerto in G Minor, BWV 1056: II. Largo
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Violin Concerto in G Minor, BWV 1056: III. Presto
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Concerto for Two Violins and Orchestra in E Major, BWV 1043: I. Vivace
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Harpsichord Concerto No. 1 in D Minor, BWV 1052: I. Allegro
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Harpsichord Concerto No. 1 in D Minor, BWV 1052: II. Adagio
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Harpsichord Concerto No. 2 in E Major, BWV 1053: I. —
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  date published: 2026-07-07T14:50:41Z
audio: Harpsichord Concerto No. 2 in E Major, BWV 1053: I. —
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Harpsichord Concerto No. 3 in D Major, BWV 1054: I. —
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  date published: 2026-07-08T03:53:27Z
audio: Harpsichord Concerto No. 3 in D Major, BWV 1054: I. —
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Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e Piano sempre
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  date published: 2026-07-08T03:20:19Z
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Harpsichord Concerto No. 4 in A Major, BWV 1055: I. Allegro
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Harpsichord Concerto No. 5 in F Minor, BWV 1056: I. —
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Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Harpsichord Concerto No. 6. In F Major, BWV 1057: I. —
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Concerto for Three Violins in D Major, BWV 1064R: I. Allegro
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Concerto for Three Violins in D Major, BWV 1064R: II. Adagio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T15:41:10Z
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track: Oboe Concerto in D Minor, BWV 1059:: I. Allegro
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track: Oratorium Festo Paschali: Kommt, eilet und laufet (Easter Oratorio), BWV 249: I. Sinfonia
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Das wohltemperierte Klavier, BWV 847: Fugue No. 2 in C Minor
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Goldberg Variations, BWV 988: Aria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T17:19:44Z
audio: Goldberg Variations, BWV 988: Aria
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Oboe Concerto in D Minor, BWV 1059:: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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audio: Oboe Concerto in D Minor, BWV 1059:: I. Allegro
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. (Allegro)
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audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. (Allegro)
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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Oratorium Festo Paschali: Kommt, eilet und laufet (Easter Oratorio), BWV 249: I. Sinfonia
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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: 2026-07-08T03:22:41Z
audio: Oratorium Festo Paschali: Kommt, eilet und laufet (Easter Oratorio), BWV 249: I. Sinfonia
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Keyboard Concerto in D minor, BWV 1052: I. Allegro
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duration ms: 518426
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by artist: Kurt Sanderling
by artist: Berliner Symphoniker
by artist: Hans Pischner
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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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  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 0x3babcd25c25b90508787ab81c1f378c125149c8e04a7148da7f49fdac24690b6. 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/DES380013362.
  date published: 2026-07-08T03:20:19Z
audio: Keyboard Concerto in D minor, BWV 1052: I. Allegro
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J.S. Bach: Complete Edition, Vol. 1/10
type: MusicAlbum
date published: 2014-12-05
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  by artist: Pieter-Jan Belder
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  genre: classical
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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
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    date published: 2026-07-08T03:53:27Z
  audio: Concerto No. 1 in F Major, BWV 1046: I. —
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track: Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio No. 1 - Polonaise - Trio No. 2
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  in album: J.S. Bach: Complete Edition, Vol. 1/10
    type: MusicAlbum
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  genre: classical
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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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    date published: 2026-07-08T03:53:27Z
  audio: Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio No. 1 - Polonaise - Trio No. 2
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track: Concerto No. 2 in F Major, BWV 1047: I. —
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  by artist: Johann Sebastian Bach
  by artist: Musica Amphion
  by artist: Pieter-Jan Belder
  in album: J.S. Bach: Complete Edition, Vol. 1/10
    type: MusicAlbum
    date published: 2014-12-05
  genre: classical
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Concerto No. 2 in F Major, BWV 1047: I. —
track: Concerto No. 3 in G Major, BWV 1048: I. —
track: Concerto No. 4 in G Major, BWV 1049: II. Andante
track: Concerto No. 4 in G Major, BWV 1049: III. Presto
track: Concerto No. 5 in D Major, BWV 1050: I. Allegro
track: Concerto No. 5 in D Major, BWV 1050: III. Allegro
track: Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
track: Orchestral Suite No. 1 in C Major, BWV 1066: I. Ouverture
track: Orchestral Suite No. 2 in B Minor, BWV 1067: II. Rondeau
track: Orchestral Suite No. 2 in B Minor, BWV 1067: IV. Bourrée No. 1 - Bourrée No. 2
track: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
track: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
track: Violin Concerto in E Major, BWV 1042: I. Allegro
track: Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)

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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/NLY331406780

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 0x661015e9f15d59f11f41af69961d2b1db2b37251e91473646f3b40cb891af1e1. 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/NLY331406780.
date published: 2026-07-08T03:53:27Z

Concerto No. 2 in F Major, BWV 1047: I. —
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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: Valence (Positivity)
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Concerto No. 3 in G Major, BWV 1048: I. —
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duration: PT5M19S
duration ms: 319160
explicit: false
by artist: Johann Sebastian Bach
by artist: Musica Amphion
by artist: Pieter-Jan Belder
in album: J.S. Bach: Complete Edition, Vol. 1/10
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  date published: 2014-12-05
genre: classical
genre: classical-piano
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto No. 3 in G Major, BWV 1048: I. —
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Concerto No. 4 in G Major, BWV 1049: II. Andante
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by artist: Musica Amphion
by artist: Pieter-Jan Belder
in album: J.S. Bach: Complete Edition, Vol. 1/10
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  date published: 2014-12-05
genre: classical
genre: classical-piano
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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: 2026-07-08T03:53:27Z
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Concerto No. 4 in G Major, BWV 1049: III. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Concerto No. 5 in D Major, BWV 1050: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Concerto No. 5 in D Major, BWV 1050: III. Allegro
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  date published: 2026-07-08T03:39:04Z
audio: Concerto No. 5 in D Major, BWV 1050: III. Allegro
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Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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  date published: 2026-07-08T03:53:27Z
audio: Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Orchestral Suite No. 1 in C Major, BWV 1066: I. Ouverture
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Orchestral Suite No. 1 in C Major, BWV 1066: I. Ouverture
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Orchestral Suite No. 2 in B Minor, BWV 1067: II. Rondeau
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Orchestral Suite No. 2 in B Minor, BWV 1067: II. Rondeau
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Orchestral Suite No. 2 in B Minor, BWV 1067: IV. Bourrée No. 1 - Bourrée No. 2
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Violin Concerto in E Major, BWV 1042: I. Allegro
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Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)
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