Konstantin Wolff
type: MusicGroup
genre: opera
description: Konstantin Wolff (born 12 October 1978 in Lahn-Gießen) is a German operatic bass baritone. Life Wolff studied with Donald Litaker at the Hochschule für Musik Karlsruhe and was awarded a scholarship.
popularity: 20
followers: 168
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  track: Die letzten Dinge: I. Ouvertüre
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    audio: Die letzten Dinge: I. Ouvertüre
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  track: Die letzten Dinge: III. Steige herauf
  track: Die letzten Dinge: IV. Heilig, heilig, heilig
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      date published: 2026-07-08T03:53:27Z
    audio: Die letzten Dinge: IV. Heilig, heilig, heilig
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  track: Die letzten Dinge: VI. Das Lamm, das erwürget ist
  track: Die letzten Dinge: VII. Und alle Kreatur
  track: Die letzten Dinge: IX. Heil, dem Erbarmer Heil!
  track: Die letzten Dinge: XIV. Die Stunde des Gerichts
  track: Die letzten Dinge: XVI. Selig sind die Toten
  track: Die letzten Dinge: II. Preis und Ehre ihm
  track: Die letzten Dinge: XI. So spricht der Herr
  track: Die letzten Dinge: XVIII. Und siehe, ich komme bald
  track: Die letzten Dinge: XIX. Groß und wunderbarlich
album: Mozart: Così fan tutte
album: Handel: Israel in Egypt, HWV 54
track: Guter Mond, du gehst so stille
track: Don Giovanni, ossia Il dissoluto punito, K.527 / Act 1: "Giovinette, che fate all'amore"

Die letzten Dinge: III. Steige herauf
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  date published: 2014-08-01
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  date published: 2026-07-08T03:22:41Z
audio: Die letzten Dinge: III. Steige herauf
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Die letzten Dinge: IX. Heil, dem Erbarmer Heil!
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  date published: 2026-07-08T03:53:27Z
audio: Die letzten Dinge: IX. Heil, dem Erbarmer Heil!
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Die letzten Dinge: XVI. Selig sind die Toten
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: Die letzten Dinge: XVI. Selig sind die Toten
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Die letzten Dinge: II. Preis und Ehre ihm
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  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: 0.187
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.094
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.788
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEB111403702
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960193
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T02:05:19+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111403702
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960193
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960193
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:05:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Die letzten Dinge: XI. So spricht der Herr
type: MusicRecording
duration: PT5M51S
duration ms: 351733
explicit: false
by artist: Louis Spohr
by artist: Konstantin Wolff
by artist: The Deutsche Kammerphilharmonie Bremen
by artist: Frieder Bernius
in album: Louis Spohr: Die letzten Dinge
  type: MusicAlbum
  date published: 2014-08-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f970e171f82575dea7e5f6e4a17ee66c3d21eef517cbd1aa41bbf2e3277e34. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEB111403711.
  date published: 2026-07-31T04:14:58Z
audio: Die letzten Dinge: XI. So spricht der Herr
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.091
  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: 0.221
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.139
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.911
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEB111403711
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960344
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111403711
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960344
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Die letzten Dinge: XVIII. Und siehe, ich komme bald
type: MusicRecording
duration: PT1M4S
duration ms: 64878
explicit: false
by artist: Louis Spohr
by artist: Johanna Winkel
by artist: Sophie Harmsen
by artist: Andreas Weller
by artist: Konstantin Wolff
by artist: The Deutsche Kammerphilharmonie Bremen
by artist: Frieder Bernius
in album: Louis Spohr: Die letzten Dinge
  type: MusicAlbum
  date published: 2014-08-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c954e8433c2aef47b03f17bbcbae4e0e972f6f6e72ad91945fbd613eec4588. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEB111403718.
  date published: 2026-07-31T05:17:02Z
audio: Die letzten Dinge: XVIII. Und siehe, ich komme bald
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.655
  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: 0.134
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.933
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.15
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEB111403718
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960348
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111403718
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Die letzten Dinge: XIX. Groß und wunderbarlich
type: MusicRecording
duration: PT6M39S
duration ms: 399613
explicit: false
by artist: Louis Spohr
by artist: Johanna Winkel
by artist: Sophie Harmsen
by artist: Andreas Weller
by artist: Konstantin Wolff
by artist: Kammerchor Stuttgart
by artist: The Deutsche Kammerphilharmonie Bremen
by artist: Frieder Bernius
in album: Louis Spohr: Die letzten Dinge
  type: MusicAlbum
  date published: 2014-08-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63130213bcf0cdad4dd74fcd91e3941507a9a3c27a356089727190ecb593aef7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111403719.
  date published: 2026-07-30T06:39:12Z
audio: Die letzten Dinge: XIX. Groß und wunderbarlich
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.146
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.132
  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.144
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.099
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.102
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEB111403719
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960216
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111403719
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960216
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T06:39:12+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Guter Mond, du gehst so stille
type: MusicRecording
duration: PT3M12S
duration ms: 192613
explicit: false
by artist: Traditional
by artist: Konstantin Wolff
by artist: Trung Sam
in album: Wiegenlieder Vol. 2 (LIEDERPROJEKT)
  type: MusicAlbum
  date published: 2022-04-08
popularity: 5
genre: bhajan
genre: gregorian-chant
genre: medieval
genre: traditional-music
isrc code: DEB111000812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:01:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafdb6698c3e7d22786f23ecd5f1fb987393bd8defc8d89ca17d95da1588682ee
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/DEB111000812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdb6698c3e7d22786f23ecd5f1fb987393bd8defc8d89ca17d95da1588682ee. 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/DEB111000812.
  date published: 2026-07-08T03:53:27Z
audio: Guter Mond, du gehst so stille
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.375
  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: 0.202
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.317
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.622
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, ossia Il dissoluto punito, K.527 / Act 1: "Giovinette, che fate all'amore"
type: MusicRecording
duration: PT1M24S
duration ms: 84213
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mojca Erdmann
by artist: Konstantin Wolff
by artist: Mahler Chamber Orchestra
by artist: Yannick Nézet-Séguin
by artist: Vocalensemble Rastatt
by artist: Holger Speck
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 2012-01-01
genre: classical
genre: classical-era
isrc code: DEN961130809
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T01:34:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf42342bc57e02fb242a68b8ba00b6dec13c7aebff1d5cbde0d36ca3296d2669
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961130809
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0xaf42342bc57e02fb242a68b8ba00b6dec13c7aebff1d5cbde0d36ca3296d2669. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961130809.
  date published: 2026-07-02T03:55:08Z
audio: Don Giovanni, ossia Il dissoluto punito, K.527 / Act 1: "Giovinette, che fate all'amore"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.735
  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: 0.526
  additional property: Energy
    type: PropertyValue
    value: 0.284
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.917
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.239
  additional property: Liveness
    type: PropertyValue
    value: 0.478
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.873
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.226
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Liveness
type: PropertyValue
value: 0.14

Valence (Positivity)
type: PropertyValue
value: 0.054

Loudness (dB)
type: PropertyValue
value: -34.197

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Die letzten Dinge: VI. Das Lamm, das erwürget ist
type: MusicRecording
duration: PT1M50S
duration ms: 110053
explicit: false
by artist: Louis Spohr
by artist: Johanna Winkel
by artist: Kammerchor Stuttgart
by artist: The Deutsche Kammerphilharmonie Bremen
by artist: Frieder Bernius
in album: Louis Spohr: Die letzten Dinge
  type: MusicAlbum
  date published: 2014-08-01
isrc code: DEB111403706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:59:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa17ca85fd93d24188c769bd6510cba48776c551a4c07ad3005dd02c23b75c8aa
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/DEB111403706
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 0xa17ca85fd93d24188c769bd6510cba48776c551a4c07ad3005dd02c23b75c8aa. 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/DEB111403706.
  date published: 2026-07-08T03:20:19Z
audio: Die letzten Dinge: VI. Das Lamm, das erwürget ist
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.432
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.24
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
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Die letzten Dinge: VII. Und alle Kreatur
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by artist: Andreas Weller
by artist: Kammerchor Stuttgart
by artist: The Deutsche Kammerphilharmonie Bremen
by artist: Frieder Bernius
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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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Die letzten Dinge: XIV. Die Stunde des Gerichts
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by artist: Andreas Weller
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by artist: Frieder Bernius
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Mozart: Così fan tutte
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date published: 2014-11-14
track: Così fan tutte ossia La scuola degli amanti, K. 588: Ouvertura
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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: 2026-07-02T03:55:08Z
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track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Ah non partite! (Recitativo: Ferrando, Guglielmo, Don Alfonso, Dorabella, Fiordiligi)
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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
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track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: È la fede delle femmine (No. 2, Terzetto: Ferrando, Don Alfonso, Guglielmo)
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  subject of: OpenTimestamps Proof of Existence
  audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: È la fede delle femmine (No. 2, Terzetto: Ferrando, Don Alfonso, Guglielmo)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Si può sapere un poco (Recitativo: Don Alfonso, Guglielmo, Ferrando)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Scioccherie di poeti! (Recitativo: Ferrando, Guglielmo, Don Alfonso)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Un'aura amorosa (No. 17, Aria: Ferrando)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Oh la saria da ridere (Recitativo: Don Alfonso, Despina)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Ah guarda, sorella (No. 4, Duetto: Fiordiligi, Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Stelle! Per carità, signor Alfonso (Recitativo: Fiordiligi, Don Alfonso, Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Andate là, che siete (Recitativo: Despina, Fiordiligi, Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: La commedia è graziosa (Recitativo: Don Alfonso, Ferrando, Fiordiligi, Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Prenderò quel brunettino (No. 20, Duetto: Fiordiligi, Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Di scrivermi ogni giorno (Recitativo: Fiordiligi, Dorabella, Ferrando, Guglielmo, Don Alfonso)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Bella vita militar! (No. 9, Coro)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Soave sia il vento (No. 10, Terzettino: Fiordiligi, Dorabella, Don Alfonso)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Non son cattivo comico! - Nel mare solca (Recitativo: Don Alfonso)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Smanie implacabili che m'agitate (No. 11, Aria: Dorabella)
track: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Che silenzio! Che aspetto di tristezza (Recitativo: Don Alfonso, Despina)

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OTSVerificationAPI
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b130b6a9dfc8689478d0e9fe32ccb266745b65e1b7a6100480b282d03f664be. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSM11405468.
date published: 2026-07-06T07:16:32Z

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: È la fede delle femmine (No. 2, Terzetto: Ferrando, Don Alfonso, Guglielmo)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Si può sapere un poco (Recitativo: Don Alfonso, Guglielmo, Ferrando)
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by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
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genre: classical
genre: classical-era
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additional property: CopyrightRegisteredAt
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Si può sapere un poco (Recitativo: Don Alfonso, Guglielmo, Ferrando)
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    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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    value: 0.979
  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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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Scioccherie di poeti! (Recitativo: Ferrando, Guglielmo, Don Alfonso)
type: MusicRecording
duration: PT1M19S
duration ms: 79360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 5
genre: classical
genre: classical-era
isrc code: USSM11405469
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x3b059a57f9c9a208f9b9eeff4404724edaedef2275cc671416877ed8c50cded3
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11405469
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 0x3b059a57f9c9a208f9b9eeff4404724edaedef2275cc671416877ed8c50cded3. 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/USSM11405469.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Scioccherie di poeti! (Recitativo: Ferrando, Guglielmo, Don Alfonso)
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    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Un'aura amorosa (No. 17, Aria: Ferrando)
type: MusicRecording
duration: PT5M3S
duration ms: 303386
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 4
genre: classical
genre: classical-era
isrc code: USSM11405499
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:51:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4c5565dfe726fdc5a7dcef1016c73cfd094c422f400c9ec54ce6652fed310ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11405499
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 0xe4c5565dfe726fdc5a7dcef1016c73cfd094c422f400c9ec54ce6652fed310ca. 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/USSM11405499.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Un'aura amorosa (No. 17, Aria: Ferrando)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.466
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.175
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.495
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Oh la saria da ridere (Recitativo: Don Alfonso, Despina)
type: MusicRecording
duration: PT2M21S
duration ms: 141426
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 2
genre: classical
genre: classical-era
isrc code: USSM11405500
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:41:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7f9bc9f6cc269646ab7a4500636d9bfcd2ed1ccdd88bd0b3f9693cff4d21a9a
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/USSM11405500
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 0xc7f9bc9f6cc269646ab7a4500636d9bfcd2ed1ccdd88bd0b3f9693cff4d21a9a. 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/USSM11405500.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Oh la saria da ridere (Recitativo: Don Alfonso, Despina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.537
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.225
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.258
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.328
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.671
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Ah guarda, sorella (No. 4, Duetto: Fiordiligi, Dorabella)
type: MusicRecording
duration: PT5M9S
duration ms: 309640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 5
genre: classical
genre: classical-era
isrc code: USSM11405471
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T11:09:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9422cc32e3a316feb17389d701bef2af5d82ec09430418f35d8223b4dea2c20
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11405471
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9422cc32e3a316feb17389d701bef2af5d82ec09430418f35d8223b4dea2c20. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11405471.
  date published: 2026-07-07T16:43:08Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Ah guarda, sorella (No. 4, Duetto: Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.423
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.227
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.049
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.495
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Stelle! Per carità, signor Alfonso (Recitativo: Fiordiligi, Don Alfonso, Dorabella)
type: MusicRecording
duration: PT1M5S
duration ms: 65106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 4
genre: classical
genre: classical-era
isrc code: USSM11405474
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:22:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x835b150810de95d7f8fb1371d493f434e1ea12e1c1ce74cb600b7e990de4f40f
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/USSM11405474
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 0x835b150810de95d7f8fb1371d493f434e1ea12e1c1ce74cb600b7e990de4f40f. 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/USSM11405474.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Stelle! Per carità, signor Alfonso (Recitativo: Fiordiligi, Don Alfonso, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.297
  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: 0.455
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.344
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.24
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.26
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.271
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Andate là, che siete (Recitativo: Despina, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT3M16S
duration ms: 196373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 2
genre: classical
genre: classical-era
isrc code: USSM11405508
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:51:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf35e5d043678aa1342f2d1ab1bbb72a0fff4cb1ffa939ca9b0036741978e3835
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/USSM11405508
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 0xf35e5d043678aa1342f2d1ab1bbb72a0fff4cb1ffa939ca9b0036741978e3835. 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/USSM11405508.
  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Andate là, che siete (Recitativo: Despina, Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.457
  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: 0.502
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.198
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.436
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.181
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.809
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: La commedia è graziosa (Recitativo: Don Alfonso, Ferrando, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT0M43S
duration ms: 43626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 2014-11-14
popularity: 3
genre: classical
genre: classical-era
isrc code: USSM11405478
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:18:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9635112aad101ae11552dc7e957637ba6cac50710bb411fb363d128fb8e20c5d
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/USSM11405478
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9635112aad101ae11552dc7e957637ba6cac50710bb411fb363d128fb8e20c5d. 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/USSM11405478.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: La commedia è graziosa (Recitativo: Don Alfonso, Ferrando, Fiordiligi, Dorabella)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Prenderò quel brunettino (No. 20, Duetto: Fiordiligi, Dorabella)
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by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
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  date published: 2014-11-14
popularity: 2
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Secondo: Prenderò quel brunettino (No. 20, Duetto: Fiordiligi, Dorabella)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Di scrivermi ogni giorno (Recitativo: Fiordiligi, Dorabella, Ferrando, Guglielmo, Don Alfonso)
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by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:02:43Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Di scrivermi ogni giorno (Recitativo: Fiordiligi, Dorabella, Ferrando, Guglielmo, Don Alfonso)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Bella vita militar! (No. 9, Coro)
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duration: PT0M45S
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by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
in album: Mozart: Così fan tutte
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popularity: 4
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91553ad6d582095b6a47bc294a3a8e0c72af7e5a83451c6d7651cc9a57c2cae9. 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/USSM11405482.
  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Bella vita militar! (No. 9, Coro)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Soave sia il vento (No. 10, Terzettino: Fiordiligi, Dorabella, Don Alfonso)
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popularity: 9
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Soave sia il vento (No. 10, Terzettino: Fiordiligi, Dorabella, Don Alfonso)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Non son cattivo comico! - Nel mare solca (Recitativo: Don Alfonso)
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popularity: 3
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe24b8ea3ac01a186adb8cb98e69c91a588fb1236a6d14875d38075b25cb53b. 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/USSM11405485.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Non son cattivo comico! - Nel mare solca (Recitativo: Don Alfonso)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Smanie implacabili che m'agitate (No. 11, Aria: Dorabella)
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by artist: Teodor Currentzis
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popularity: 4
genre: classical
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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 0x3d21d277e295fa2a153d2decad4b7d2231eb2fc5eecdefc4f9fd6b3d7ba627b8. 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/USSM11405488.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Smanie implacabili che m'agitate (No. 11, Aria: Dorabella)
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Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Che silenzio! Che aspetto di tristezza (Recitativo: Don Alfonso, Despina)
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by artist: Wolfgang Amadeus Mozart
by artist: Teodor Currentzis
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audio: Così fan tutte ossia La scuola degli amanti, K. 588: Atto Primo: Che silenzio! Che aspetto di tristezza (Recitativo: Don Alfonso, Despina)
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Handel: Israel in Egypt, HWV 54
type: MusicAlbum
date published: 2008-12-01