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genre: requiem
description: Werner Krenn (born 21 September 1943 in Vienna) is an Austrian tenor. Krenn received his first musical training as a member of the boys' choir Wiener Sängerknaben. He later studied bassoon and was pr
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  track: Die lustige Witwe, Act I: No. 3, Bitte meine Herr'n – Hab' in Paris mich noch nicht ganz so akklimasiert
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album: Haydn: Die Schöpfung; Messa brevis Sancti; Joannis de Deo
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Lobgesang auf die feierliche Johannisloge: O heiliges Band der Freundschaft, K.148
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Gesellenreise: Die ihr einem neuen Grade, K.468
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Der fliegende Holländer, Act I: Introduction. Hojoje! Hojoje! Hallojo! Ho! – Kein Zweifel! Sieben Meilen fort
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Der fliegende Holländer, Act I: Mit Gewitter und Sturm – Von des Südens Gestad'
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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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0xa0739e8dbb911dc52a689fdd472b97c613141d4ee588ce920ff80919467c30f8. 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/GBF077640103.
  date published: 2026-07-02T03:55:08Z
audio: Der fliegende Holländer, Act I: Mit Gewitter und Sturm – Von des Südens Gestad'
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.171
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
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    value: -24.768
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Der fliegende Holländer, Act I: He! Holla! Steuermann
type: MusicRecording
duration: PT3M48S
duration ms: 228066
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: Martti Talvela
by artist: Werner Krenn
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 10
genre: classical
genre: opera
isrc code: GBF077640105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:11:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f0496fe83e6efdabc425738cc4266987a29be95d9953afe90bb16dc85b5fdba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0496fe83e6efdabc425738cc4266987a29be95d9953afe90bb16dc85b5fdba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640105.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act I: He! Holla! Steuermann
  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
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.178
  additional property: Valence (Positivity)
    type: PropertyValue
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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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Der fliegende Holländer, Act I: Wie? Hör ich recht? – Südwind! Südwind!
type: MusicRecording
duration: PT9M15S
duration ms: 555000
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: Martti Talvela
by artist: Werner Krenn
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 10
genre: classical
genre: opera
isrc code: GBF077640107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:11:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2505a88795668a96ab5e655533b973490a9b8c815d3993e089f69c1a6f3152f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x2505a88795668a96ab5e655533b973490a9b8c815d3993e089f69c1a6f3152f6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640107.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act I: Wie? Hör ich recht? – Südwind! Südwind!
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 163.081
  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
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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
    type: PropertyValue
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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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  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.829
  additional property: Key Name
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    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Der fliegende Holländer, Act III: Steuermann, laß die Wacht! "Sailors' Chorus"
type: MusicRecording
duration: PT10M30S
duration ms: 630093
explicit: false
by artist: Richard Wagner
by artist: Werner Krenn
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 11
genre: classical
genre: opera
isrc code: GBF077640120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:53:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe602aeac4abb1115fd84ccac87498be86be6f5690846dbeb90de277ca90a405b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0xe602aeac4abb1115fd84ccac87498be86be6f5690846dbeb90de277ca90a405b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640120.
  date published: 2026-07-02T03:30:09Z
audio: Der fliegende Holländer, Act III: Steuermann, laß die Wacht! "Sailors' Chorus"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.771
  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
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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)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Speechiness
type: PropertyValue
value: 0.093

Acousticness
type: PropertyValue
value: 0.97

Instrumentalness
type: PropertyValue
value: 0.23

Liveness
type: PropertyValue
value: 0.279

Valence (Positivity)
type: PropertyValue
value: 0.111

Loudness (dB)
type: PropertyValue
value: -19.204

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Haydn: Die Schöpfung; Messa brevis Sancti; Joannis de Deo
type: MusicAlbum
date published: 2012-01-01

Mozart Opera Festival
type: MusicAlbum
date published: 2005-01-01
track: Le nozze di Figaro, K. 492 / Act 1: "Non più andrai"
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  duration: PT3M49S
  duration ms: 229920
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Tom Krause
  by artist: Vienna Haydn Orchestra
  by artist: István Kertész
  in album: Mozart Opera Festival
    type: MusicAlbum
    date published: 2005-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF077110440
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T22:03:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa3f5b226e0b0114466cb2786f2f2408360aa0b76b257dbebec8c1240b8308b42
  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/GBF077110440
  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 0xa3f5b226e0b0114466cb2786f2f2408360aa0b76b257dbebec8c1240b8308b42. 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/GBF077110440.
    date published: 2026-07-08T03:20:19Z
  audio: Le nozze di Figaro, K. 492 / Act 1: "Non più andrai"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.072
    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: 0.562
    additional property: Energy
      type: PropertyValue
      value: 0.358
    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.04
    additional property: Liveness
      type: PropertyValue
      value: 0.093
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.518
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.086
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Le nozze di Figaro, K. 492 / Act 2: "Voi che sapete"
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162546
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Brigitte Fassbaender
  by artist: Vienna Haydn Orchestra
  by artist: István Kertész
  in album: Mozart Opera Festival
    type: MusicAlbum
    date published: 2005-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF077110430
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T22:55:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x49e9f901e81779142174a23bea49fbba3a1be0fb66e48bda70d516ff666153c5
  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/GBF077110430
  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 0x49e9f901e81779142174a23bea49fbba3a1be0fb66e48bda70d516ff666153c5. 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/GBF077110430.
    date published: 2026-07-08T03:53:27Z
  audio: Le nozze di Figaro, K. 492 / Act 2: "Voi che sapete"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.192
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.27
    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
    additional property: Liveness
      type: PropertyValue
      value: 0.167
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.136
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.525
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Le nozze di Figaro, K. 492 / Act 3: "Crudel! perchè finora"
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161773
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Lucia Popp
  by artist: Tom Krause
  by artist: Vienna Haydn Orchestra
  by artist: István Kertész
  in album: Mozart Opera Festival
    type: MusicAlbum
    date published: 2005-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF077113270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Le nozze di Figaro, K. 492 / Act 3: "Crudel! perchè finora"
track: Le nozze di Figaro, K. 492 / Act 4: "Giunse alfin il momento...Deh vieni non tardar"
track: Die Entführung aus dem Serail, K.384 / Act 1: "Konstanze, dich wiederzusehen...O wie ängstlich, o wie feurig"
track: Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
track: Die Zauberflöte, K.620 / Act 1: "Der Vogelfänger bin ich ja"
track: Die Zauberflöte, K.620 - (E. Schikaneder) - Act 1: "Dies Bildnis ist bezaubernd schön"
track: Così fan tutte, K.588 / Act 1: "Soave sia il vento"
track: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T15:14:35+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe4ef1cc40c001e145a9365e0f3d7568819465a78e681279a9655fc53fd888700

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077113270

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0xe4ef1cc40c001e145a9365e0f3d7568819465a78e681279a9655fc53fd888700. 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/GBF077113270.
date published: 2026-07-08T03:53:27Z

Le nozze di Figaro, K. 492 / Act 3: "Crudel! perchè finora"
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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  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.317
additional property: Energy
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  value: 0.371
additional property: Speechiness
  type: PropertyValue
  value: 0.045
additional property: Acousticness
  type: PropertyValue
  value: 0.977
additional property: Instrumentalness
  type: PropertyValue
  value: 0.008
additional property: Liveness
  type: PropertyValue
  value: 0.138
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.192
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.822
additional property: Key Name
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  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Le nozze di Figaro, K. 492 / Act 4: "Giunse alfin il momento...Deh vieni non tardar"
type: MusicRecording
duration: PT5M7S
duration ms: 307293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lucia Popp
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077113280
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:59:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e18edd1e5cfe528ad9a111c0027d16c1cfe8ba6d6d1218ba3596e241f5cd500
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077113280
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0x5e18edd1e5cfe528ad9a111c0027d16c1cfe8ba6d6d1218ba3596e241f5cd500. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBF077113280.
  date published: 2026-07-08T03:39:04Z
audio: Le nozze di Figaro, K. 492 / Act 4: "Giunse alfin il momento...Deh vieni non tardar"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 123.43
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.281
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.215
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
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Die Entführung aus dem Serail, K.384 / Act 1: "Konstanze, dich wiederzusehen...O wie ängstlich, o wie feurig"
type: MusicRecording
duration: PT5M5S
duration ms: 305866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Werner Krenn
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077113310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:36:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf4eab1be2e4c46018d31a2a9cdaf288fdd2a1948d0e670f0c63ee9c58d07829a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077113310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0xf4eab1be2e4c46018d31a2a9cdaf288fdd2a1948d0e670f0c63ee9c58d07829a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBF077113310.
  date published: 2026-07-08T03:39:04Z
audio: Die Entführung aus dem Serail, K.384 / Act 1: "Konstanze, dich wiederzusehen...O wie ängstlich, o wie feurig"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.462
  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: 0.297
  additional property: Energy
    type: PropertyValue
    value: 0.133
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.221
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
type: MusicRecording
duration: PT3M28S
duration ms: 208133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Manfred Jungwirth
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077113340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:52:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x192f194d1dade6e7de48c1987a0d6c50384afce51e5f1f5db3a2e64035c69ad0
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/GBF077113340
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 0x192f194d1dade6e7de48c1987a0d6c50384afce51e5f1f5db3a2e64035c69ad0. 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/GBF077113340.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.146
  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: 0.473
  additional property: Energy
    type: PropertyValue
    value: 0.343
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.932
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.343
  additional property: Liveness
    type: PropertyValue
    value: 0.403
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.447
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.336
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Die Zauberflöte, K.620 / Act 1: "Der Vogelfänger bin ich ja"
type: MusicRecording
duration: PT2M34S
duration ms: 154706
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Tom Krause
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077110400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:17:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66c615e9fefd46e129d61c3b8a9c5df555bda6f7220a15b577368710e4f108c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957065
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:21Z
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 0x66c615e9fefd46e129d61c3b8a9c5df555bda6f7220a15b577368710e4f108c6. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBF077110400.
  date published: 2026-07-07T16:43:21Z
audio: Die Zauberflöte, K.620 / Act 1: "Der Vogelfänger bin ich ja"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.361
  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: 0.517
  additional property: Energy
    type: PropertyValue
    value: 0.292
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.367
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.571
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Die Zauberflöte, K.620 - (E. Schikaneder) - Act 1: "Dies Bildnis ist bezaubernd schön"
type: MusicRecording
duration: PT3M42S
duration ms: 222253
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Werner Krenn
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077110420
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:02:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb48f8393dce3139939f56272e9c595d413496b2377c5ee754386ff514392c86d
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/GBF077110420
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 0xb48f8393dce3139939f56272e9c595d413496b2377c5ee754386ff514392c86d. 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/GBF077110420.
  date published: 2026-07-08T03:22:41Z
audio: Die Zauberflöte, K.620 - (E. Schikaneder) - Act 1: "Dies Bildnis ist bezaubernd schön"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.003
  additional property: Musical Key
    type: PropertyValue
    value: 3
  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: 0.195
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Così fan tutte, K.588 / Act 1: "Soave sia il vento"
type: MusicRecording
duration: PT2M38S
duration ms: 158000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lucia Popp
by artist: Brigitte Fassbaender
by artist: Tom Krause
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077110550
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T20:44:01+00:00
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/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. 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/GBF077110550.
  date published: 2026-06-13T15:41:10Z
audio: Così fan tutte, K.588 / Act 1: "Soave sia il vento"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.41
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.304
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.211
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.067
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.129
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
type: MusicRecording
duration: PT3M19S
duration ms: 199866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lucia Popp
by artist: Tom Krause
by artist: Vienna Haydn Orchestra
by artist: István Kertész
in album: Mozart Opera Festival
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: classical-era
isrc code: GBF077110810
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T02:54:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110810
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110810.
  date published: 2026-07-02T03:30:09Z
audio: Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 115.02
  additional property: Musical Key
    type: PropertyValue
    value: 9
  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: 0.26
  additional property: Energy
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    value: 0.318
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.341
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.753
  additional property: Key Name
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Mozart: Masonic Music
type: MusicAlbum
date published: 1969-01-01
track: Lobgesang auf die feierliche Johannisloge: O heiliges Band der Freundschaft, K.148
track: Dir, Seele des Weltalls, K.429: 1. "Dir, Seele des Weltalls"
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220066
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Werner Krenn
  by artist: Edinburgh Festival Chorus
  by artist: London Symphony Orchestra
  by artist: István Kertész
  in album: Mozart: Masonic Music
    type: MusicAlbum
    date published: 1969-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF076810611
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T15:53:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xda2c9f0f21c19d83715725ac17955f3200a9067eed739215ee9f099bfa474f83
  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/GBF076810611
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c9f0f21c19d83715725ac17955f3200a9067eed739215ee9f099bfa474f83. 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/GBF076810611.
    date published: 2026-07-02T03:55:08Z
  audio: Dir, Seele des Weltalls, K.429: 1. "Dir, Seele des Weltalls"
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 120.409
    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: 0.299
    additional property: Energy
      type: PropertyValue
      value: 0.193
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.629
    additional property: Liveness
      type: PropertyValue
      value: 0.143
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.131
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.378
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Die Maurerfreude, K.471
  type: MusicRecording
  duration: PT6M59S
  duration ms: 419200
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Werner Krenn
  by artist: Edinburgh Festival Chorus
  by artist: London Symphony Orchestra
  by artist: István Kertész
  in album: Mozart: Masonic Music
    type: MusicAlbum
    date published: 1969-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF076810614
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:41:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd5522284083aa214e5b2838dee322904a5b5d7c590314d18e2730986d38d82f9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957819
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957819
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076810614
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T07:53:33Z
  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 0xd5522284083aa214e5b2838dee322904a5b5d7c590314d18e2730986d38d82f9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBF076810614.
    date published: 2026-07-13T07:53:33Z
  audio: Die Maurerfreude, K.471
    type: AudioObject
    additional property: Tempo (BPM)
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    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: 0.335
    additional property: Energy
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      value: 0.151
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.99
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.018
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.18
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.345
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
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track: Maurerische Trauermusik, K.477
  type: MusicRecording
  duration: PT5M49S
  duration ms: 349493
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: London Symphony Orchestra
  by artist: István Kertész
  in album: Mozart: Masonic Music
    type: MusicAlbum
    date published: 1969-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF076810615
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Maurerische Trauermusik, K.477
track: Zur Eröffnung der Freimaurerloge: Zerfliesset heut', geliebte Brüder, K.483
track: Laut verkünde unsre Freude, K.623: 1a. Coro - "Laute verkünde unsre Freude"
track: Laut verkünde unsre Freude, K.623: 3/4: Recit/Duo: "Wohlan, ihr Brüder...Lange sollen..."
track: Lasst uns mit geschlungnen Händen, K.623a
track: Gesellenreise: Die ihr einem neuen Grade, K.468

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-23T09:41:15+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xa0f1db50a0cd914a2f59708fddd5443839c41c6f12ba4d1270a5123531803ca2

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076810615

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0xa0f1db50a0cd914a2f59708fddd5443839c41c6f12ba4d1270a5123531803ca2. 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/GBF076810615.
date published: 2026-07-02T03:55:08Z

Maurerische Trauermusik, K.477
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.963
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.153
additional property: Energy
  type: PropertyValue
  value: 0.079
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.975
additional property: Instrumentalness
  type: PropertyValue
  value: 0.833
additional property: Liveness
  type: PropertyValue
  value: 0.211
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.039
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.189
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

Zur Eröffnung der Freimaurerloge: Zerfliesset heut', geliebte Brüder, K.483
type: MusicRecording
duration: PT2M21S
duration ms: 141595
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Werner Krenn
by artist: Edinburgh Festival Chorus
by artist: Georg Fischer
in album: Mozart: Masonic Music
  type: MusicAlbum
  date published: 1969-01-01
genre: classical
genre: classical-era
isrc code: GBF076810616
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:54:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12e659a453bf096c6cac53ce81fc594275adfe00256f39cee7213629ed34fb1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957026
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957026
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076810616
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:02:43Z
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 0x12e659a453bf096c6cac53ce81fc594275adfe00256f39cee7213629ed34fb1c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/GBF076810616.
  date published: 2026-07-07T11:02:43Z
audio: Zur Eröffnung der Freimaurerloge: Zerfliesset heut', geliebte Brüder, K.483
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.749
  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: 0.275
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.207
  additional property: Liveness
    type: PropertyValue
    value: 0.171
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.259
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.635
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Laut verkünde unsre Freude, K.623: 1a. Coro - "Laute verkünde unsre Freude"
type: MusicRecording
duration: PT1M29S
duration ms: 89257
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edinburgh Festival Chorus
by artist: London Symphony Orchestra
by artist: István Kertész
in album: Mozart: Masonic Music
  type: MusicAlbum
  date published: 1969-01-01
genre: classical
genre: classical-era
isrc code: GBF076810621
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:35:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xccdbd08d8349f142d15f51efd69e3560e52ec0460936fe054e70aecfbb7535bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076810621
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0xccdbd08d8349f142d15f51efd69e3560e52ec0460936fe054e70aecfbb7535bc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF076810621.
  date published: 2026-07-07T18:39:05Z
audio: Laut verkünde unsre Freude, K.623: 1a. Coro - "Laute verkünde unsre Freude"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.74
  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: 0.48
  additional property: Energy
    type: PropertyValue
    value: 0.444
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.532
  additional property: Liveness
    type: PropertyValue
    value: 0.56
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.608
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.037
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Laut verkünde unsre Freude, K.623: 3/4: Recit/Duo: "Wohlan, ihr Brüder...Lange sollen..."
type: MusicRecording
duration: PT5M10S
duration ms: 310400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Werner Krenn
by artist: Tom Krause
by artist: London Symphony Orchestra
by artist: István Kertész
in album: Mozart: Masonic Music
  type: MusicAlbum
  date published: 1969-01-01
genre: classical
genre: classical-era
isrc code: GBF076810623
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:00:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0096056104d9a17d0ccc56f31862043012ffcb6c99ba54b3ff76ddbf5e58b2ab
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/GBF076810623
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 0x0096056104d9a17d0ccc56f31862043012ffcb6c99ba54b3ff76ddbf5e58b2ab. 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/GBF076810623.
  date published: 2026-07-08T03:53:27Z
audio: Laut verkünde unsre Freude, K.623: 3/4: Recit/Duo: "Wohlan, ihr Brüder...Lange sollen..."
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.807
  additional property: Musical Key
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Lasst uns mit geschlungnen Händen, K.623a
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by artist: Edinburgh Festival Chorus
by artist: Georg Fischer
in album: Mozart: Masonic Music
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genre: classical
genre: classical-era
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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/GBF076810630
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a9ace3eb5f7b31dd6e05235f258e445981abfe30ded273b8266bb648813702. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF076810630.
  date published: 2026-07-07T18:39:05Z
audio: Lasst uns mit geschlungnen Händen, K.623a
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Mozart: La Clemenza di Tito
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date published: 1967-01-01
track: La clemenza di Tito, K.621 / Act 1: "Come ti piace imponi"
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  by artist: Wolfgang Amadeus Mozart
  by artist: Teresa Berganza
  by artist: Maria Casula
  by artist: Georg Fischer
  by artist: Vienna State Opera Orchestra
  by artist: István Kertész
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    date published: 1967-01-01
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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/GBF076740802
  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 0x2f649498808038f76717efe599bc0e158566317cbd921803172b00c348ad9150. 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/GBF076740802.
    date published: 2026-07-08T03:53:27Z
  audio: La clemenza di Tito, K.621 / Act 1: "Come ti piace imponi"
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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track: La clemenza di Tito, K.621 / Act 1: "Serbate, oh Dei custodi"
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  by artist: Wolfgang Amadeus Mozart
  by artist: Wiener Staatsopernchor
  by artist: Vienna State Opera Orchestra
  by artist: István Kertész
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    type: MusicAlbum
    date published: 1967-01-01
  genre: classical
  genre: classical-era
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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
    type: DigitalDocument
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    date published: 2026-07-08T08:56:20Z
  audio: La clemenza di Tito, K.621 / Act 1: "Serbate, oh Dei custodi"
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  by artist: Wolfgang Amadeus Mozart
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  by artist: Werner Krenn
  by artist: Maria Casula
  by artist: Lucia Popp
  by artist: Brigitte Fassbaender
  by artist: Wiener Staatsopernchor
  by artist: Vienna State Opera Orchestra
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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CopyrightChainExplorerURL
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OTSHash
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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/GBF076740838

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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 0x91e9067e907f642be293f80ee4884157ac7f76d4be556376a41ff8b68d7c2c02. 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/GBF076740838.
date published: 2026-07-08T08:56:20Z

La clemenza di Tito, K.621 / Act 2: "Tu, è ver, m'assolvi, Augusto"
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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Mozart: Requiem; "Coronation Mass"
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date published: 2007-01-01
track: Requiem, K. 626: I. Introitus. Requiem aeternam - Recorded 1975
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  by artist: Berliner Philharmoniker
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3382ebab2d26917b902d387bc93e43025879356ed2564d91d75cdc72b20a6f36. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530002.
    date published: 2026-07-02T05:09:12Z
  audio: Requiem, K. 626: I. Introitus. Requiem aeternam - Recorded 1975
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      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: Valence (Positivity)
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track: Requiem, K. 626: II. Kyrie - Recorded 1975
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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: 2026-07-06T07:53:57Z
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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  by artist: Berliner Philharmoniker
  by artist: Herbert von Karajan
  by artist: Rudolf Scholz
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    date published: 2007-01-01
  genre: classical
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Requiem, K. 626: IIIb. Tuba mirum - Recorded 1975
track: Requiem, K. 626: IIIc. Rex tremendae - Recorded 1975
track: Requiem, K. 626: IIId. Recordare - Recorded 1975
track: Requiem, K. 626: IIIe. Confutatis - Recorded 1975
track: Requiem, K. 626: IIIf. Lacrimosa - Recorded 1975
track: Requiem, K. 626: VII. Agnus Dei - Recorded 1975
track: Mass in C Major, K. 317 "Coronation Mass": III. Credo
track: Mass in C Major, K. 317 "Coronation Mass": IV. Sanctus

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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957043

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957043

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530004

OTSTimestamp
type: PropertyValue
value: 2026-07-07T13:52:39Z

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 0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530004.
date published: 2026-07-07T13:52:39Z

Requiem, K. 626: IIIa. Dies irae - Recorded 1975
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Requiem, K. 626: IIIb. Tuba mirum - Recorded 1975
type: MusicRecording
duration: PT4M13S
duration ms: 253066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530005
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/0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957055
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T15:12:44Z
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 0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEF057530005.
  date published: 2026-07-07T15:12:44Z
audio: Requiem, K. 626: IIIb. Tuba mirum - Recorded 1975
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    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)
    type: PropertyValue
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  additional property: Key Name
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Requiem, K. 626: IIIc. Rex tremendae - Recorded 1975
type: MusicRecording
duration: PT2M27S
duration ms: 147000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530006
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: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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 0x09c738bfa4f9841123518c0519e64383454f26e07daaa75541f50f011fca0f71. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEF057530006.
  date published: 2026-07-06T07:53:57Z
audio: Requiem, K. 626: IIIc. Rex tremendae - Recorded 1975
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.424
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Requiem, K. 626: IIId. Recordare - Recorded 1975
type: MusicRecording
duration: PT5M18S
duration ms: 318173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530007
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
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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 0xf0b05fb78c7f5eb822f07c831055e4d71273266cbece729e10fcb52f32b81a61. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEF057530007.
  date published: 2026-07-07T14:50:41Z
audio: Requiem, K. 626: IIId. Recordare - Recorded 1975
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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    type: PropertyValue
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Requiem, K. 626: IIIe. Confutatis - Recorded 1975
type: MusicRecording
duration: PT2M24S
duration ms: 144826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7697b34f82d0344c84ce81a5a9550a4c7a3d42265bc6b9e4ca3b3c601086594c. 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/DEF057530008.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, K. 626: IIIe. Confutatis - Recorded 1975
  type: AudioObject
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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
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.962
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.954
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem, K. 626: IIIf. Lacrimosa - Recorded 1975
type: MusicRecording
duration: PT3M22S
duration ms: 202000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6386d0f0bc6a2d08459cf846e978def80bc41102397ad8e0c313c906f4d3ac1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/DEF057530001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0x6386d0f0bc6a2d08459cf846e978def80bc41102397ad8e0c313c906f4d3ac1f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF057530001.
  date published: 2026-06-13T12:47:07Z
audio: Requiem, K. 626: IIIf. Lacrimosa - Recorded 1975
  type: AudioObject
  additional property: Tempo (BPM)
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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: 0.149
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.184
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.017
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem, K. 626: VII. Agnus Dei - Recorded 1975
type: MusicRecording
duration: PT3M35S
duration ms: 215240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057530013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0910d0d218d1790dfe068fc9b3b728cb3fd65acb8e4b0e4d2ad2562e1db17a3f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530013
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 0x0910d0d218d1790dfe068fc9b3b728cb3fd65acb8e4b0e4d2ad2562e1db17a3f. 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/DEF057530013.
  date published: 2026-07-08T03:53:27Z
audio: Requiem, K. 626: VII. Agnus Dei - Recorded 1975
  type: AudioObject
  additional property: Tempo (BPM)
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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: 0.085
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.823
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.83
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 317 "Coronation Mass": III. Credo
type: MusicRecording
duration: PT6M39S
duration ms: 399533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057501793
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:41:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x247fc0dd1687059216ee370544a684589385acf6352d5e0ff66ea465d30ba53d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957041
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957041
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057501793
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:25:45Z
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 0x247fc0dd1687059216ee370544a684589385acf6352d5e0ff66ea465d30ba53d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEF057501793.
  date published: 2026-07-07T13:25:45Z
audio: Mass in C Major, K. 317 "Coronation Mass": III. Credo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.855
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.372
  additional property: Energy
    type: PropertyValue
    value: 0.433
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.596
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.199
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.946
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mass in C Major, K. 317 "Coronation Mass": IV. Sanctus
type: MusicRecording
duration: PT1M57S
duration ms: 117866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Wiener Singverein
in album: Mozart: Requiem; "Coronation Mass"
  type: MusicAlbum
  date published: 2007-01-01
genre: classical
genre: classical-era
isrc code: DEF057501794
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:40:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f7f9115028e007ff3d75bb51c10c9b82fbcba7f552c38ba6e43c5eed271bd9c
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/DEF057501794
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 0x4f7f9115028e007ff3d75bb51c10c9b82fbcba7f552c38ba6e43c5eed271bd9c. 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/DEF057501794.
  date published: 2026-07-08T03:22:41Z
audio: Mass in C Major, K. 317 "Coronation Mass": IV. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.81
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.135
  additional property: Energy
    type: PropertyValue
    value: 0.374
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.196
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.345
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Requiem
type: MusicAlbum
date published: 1976-01-01
track: Requiem, K. 626: I. Introitus. Requiem aeternam
  type: MusicRecording
  duration: PT5M38S
  duration ms: 338333
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Anna Tomowa-Sintow
  by artist: Berliner Philharmoniker
  by artist: Herbert von Karajan
  by artist: Rudolf Scholz
  by artist: Wiener Singverein
  in album: Mozart: Requiem
    type: MusicAlbum
    date published: 1976-01-01
  genre: classical
  genre: classical-era
  isrc code: DEF057530002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T05:56:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3382ebab2d26917b902d387bc93e43025879356ed2564d91d75cdc72b20a6f36
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  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 0x3382ebab2d26917b902d387bc93e43025879356ed2564d91d75cdc72b20a6f36. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530002.
    date published: 2026-07-02T05:09:12Z
  audio: Requiem, K. 626: I. Introitus. Requiem aeternam
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.755
    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: 0.084
    additional property: Energy
      type: PropertyValue
      value: 0.217
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.966
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.826
    additional property: Liveness
      type: PropertyValue
      value: 0.133
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.041
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.501
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Requiem, K. 626: II. Kyrie
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169666
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Berliner Philharmoniker
  by artist: Herbert von Karajan
  by artist: Rudolf Scholz
  by artist: Wiener Singverein
  in album: Mozart: Requiem
    type: MusicAlbum
    date published: 1976-01-01
  genre: classical
  genre: classical-era
  isrc code: DEF057530003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T06:37:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x91b2463f0539c20f2b3ea3c1e68c1c98093fdacfa53acfdca903294687ee3334
  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/DEF057530003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b2463f0539c20f2b3ea3c1e68c1c98093fdacfa53acfdca903294687ee3334. 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/DEF057530003.
    date published: 2026-07-02T03:55:08Z
  audio: Requiem, K. 626: II. Kyrie
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.642
    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: 0.363
    additional property: Energy
      type: PropertyValue
      value: 0.379
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.971
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.916
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.423
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.817
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Requiem, K. 626: IIIa. Dies irae
  type: MusicRecording
  duration: PT1M51S
  duration ms: 111200
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Berliner Philharmoniker
  by artist: Herbert von Karajan
  by artist: Rudolf Scholz
  by artist: Wiener Singverein
  in album: Mozart: Requiem
    type: MusicAlbum
    date published: 1976-01-01
  genre: classical
  genre: classical-era
  isrc code: DEF057530004
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Requiem, K. 626: IIIa. Dies irae
track: Requiem, K. 626: IIIb. Tuba mirum
track: Requiem, K. 626: IIIc. Rex tremendae
track: Requiem, K. 626: IIId. Recordare
track: Requiem, K. 626: IIIe. Confutatis
track: Requiem, K. 626: IIIf. Lacrimosa
track: Requiem, K. 626: VII. Agnus Dei

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-25T19:24:34+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530004

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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 0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5. 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/DEF057530004.
date published: 2026-07-02T03:55:08Z

Requiem, K. 626: IIIa. Dies irae
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.971
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.414
additional property: Energy
  type: PropertyValue
  value: 0.498
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.878
additional property: Instrumentalness
  type: PropertyValue
  value: 0.426
additional property: Liveness
  type: PropertyValue
  value: 0.131
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.565
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.715
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Minor

Requiem, K. 626: IIIb. Tuba mirum
type: MusicRecording
duration: PT4M12S
duration ms: 252333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T06:42:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3
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/DEF057530005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3. 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/DEF057530005.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, K. 626: IIIb. Tuba mirum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.585
  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: 0.246
  additional property: Energy
    type: PropertyValue
    value: 0.065
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.196
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.046
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.024
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, K. 626: IIIc. Rex tremendae
type: MusicRecording
duration: PT2M25S
duration ms: 145120
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T06:41:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09c738bfa4f9841123518c0519e64383454f26e07daaa75541f50f011fca0f71
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/DEF057530006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c738bfa4f9841123518c0519e64383454f26e07daaa75541f50f011fca0f71. 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/DEF057530006.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, K. 626: IIIc. Rex tremendae
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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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Requiem, K. 626: IIId. Recordare
type: MusicRecording
duration: PT5M17S
duration ms: 317200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530007
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957041
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T13:25:45Z
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 0xf0b05fb78c7f5eb822f07c831055e4d71273266cbece729e10fcb52f32b81a61. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEF057530007.
  date published: 2026-07-07T13:25:45Z
audio: Requiem, K. 626: IIId. Recordare
  type: AudioObject
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  additional property: Valence (Positivity)
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Requiem, K. 626: IIIe. Confutatis
type: MusicRecording
duration: PT2M24S
duration ms: 144106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530008
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7697b34f82d0344c84ce81a5a9550a4c7a3d42265bc6b9e4ca3b3c601086594c. 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/DEF057530008.
  date published: 2026-07-02T03:55:08Z
audio: Requiem, K. 626: IIIe. Confutatis
  type: AudioObject
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Requiem, K. 626: IIIf. Lacrimosa
type: MusicRecording
duration: PT3M17S
duration ms: 197333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Wiener Singverein
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x6386d0f0bc6a2d08459cf846e978def80bc41102397ad8e0c313c906f4d3ac1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530001.
  date published: 2026-07-02T05:09:12Z
audio: Requiem, K. 626: IIIf. Lacrimosa
  type: AudioObject
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Requiem, K. 626: VII. Agnus Dei
type: MusicRecording
duration: PT3M35S
duration ms: 215760
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1976-01-01
genre: classical
genre: classical-era
isrc code: DEF057530013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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 0x0910d0d218d1790dfe068fc9b3b728cb3fd65acb8e4b0e4d2ad2562e1db17a3f. 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/DEF057530013.
  date published: 2026-07-08T03:20:19Z
audio: Requiem, K. 626: VII. Agnus Dei
  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: Valence (Positivity)
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  additional property: Loudness (dB)
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J.S. Bach: Osteroratorium, Magnificat
type: MusicAlbum
date published: 2005-01-01

Léhar - The Merry Widow - Highlights
type: MusicAlbum
date published: 1978-01-01
track: The Merry Widow: Overture
  type: MusicRecording
  duration: PT7M29S
  duration ms: 449666
  explicit: false
  by artist: Franz Lehár
  by artist: National Philharmonic Orchestra
  by artist: Richard Bonynge
  in album: Léhar - The Merry Widow - Highlights
    type: MusicAlbum
    date published: 1978-01-01
  genre: opera
  isrc code: GBF077742401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfd3c04e1c6237748a2ae98ec511c3a83b5157f988bda473e3892631b0a47ffd7
  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/GBF077742401
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  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 0xfd3c04e1c6237748a2ae98ec511c3a83b5157f988bda473e3892631b0a47ffd7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742401.
    date published: 2026-07-02T11:38:34Z
  audio: The Merry Widow: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    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: 0.234
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
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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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    additional property: Loudness (dB)
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      value: -20.684
    additional property: Key Name
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    additional property: Mode Name
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track: The Merry Widow / Act 2: Duet: Such a silly soldier boy...Heija!
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193333
  explicit: false
  by artist: Franz Lehár
  by artist: Dame Joan Sutherland
  by artist: Werner Krenn
  by artist: National Philharmonic Orchestra
  by artist: Richard Bonynge
  in album: Léhar - The Merry Widow - Highlights
    type: MusicAlbum
    date published: 1978-01-01
  genre: opera
  isrc code: GBF077742408
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077742408
  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 0xac7d648c7c54b1db5bd29b026880d24a1533a1fba74d084e5bad51d2c4595d98. 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/GBF077742408.
    date published: 2026-07-08T03:22:41Z
  audio: The Merry Widow / Act 2: Duet: Such a silly soldier boy...Heija!
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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track: The Merry Widow / Act 2: Romanza: Love in my heart was dying
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317666
  explicit: false
  by artist: Franz Lehár
  by artist: John Brecknock
  by artist: National Philharmonic Orchestra
  by artist: Richard Bonynge
  in album: Léhar - The Merry Widow - Highlights
    type: MusicAlbum
    date published: 1978-01-01
  genre: opera
  isrc code: GBF077742409
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: The Merry Widow / Act 2: Romanza: Love in my heart was dying

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xc57b47d8bd31915e13b914e6372d5b625784028acfa5fd1920b7da36a2a6c6a8

OTSHash
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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/GBF077742409

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 0xc57b47d8bd31915e13b914e6372d5b625784028acfa5fd1920b7da36a2a6c6a8. 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/GBF077742409.
date published: 2026-07-08T08:56:20Z

The Merry Widow / Act 2: Romanza: Love in my heart was dying
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additional property: Energy
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additional property: Speechiness
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Mozart: Don Giovanni
type: MusicAlbum
date published: 1969-12-03

Wagner: Der fliegende Holländer
type: MusicAlbum
date published: 1977-05-02
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  by artist: Chicago Symphony Orchestra
  by artist: Sir Georg Solti
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    date published: 1977-05-02
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  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
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550b91ad549997518484ab56afe4338c53a3e95b37cf8022c4d46d93605ebe65. 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/GBF077640101.
    date published: 2026-06-13T13:32:09Z
  audio: Der fliegende Holländer: Overture
    type: AudioObject
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track: Der fliegende Holländer, Act I: Introduction. Hojoje! Hojoje! Hallojo! Ho! – Kein Zweifel! Sieben Meilen fort
track: Der fliegende Holländer, Act I: Mit Gewitter und Sturm – Von des Südens Gestad'
track: Der fliegende Holländer, Act I: Die Frist ist um
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  by artist: Norman Bailey
  by artist: Chicago Symphony Chorus
  by artist: Chicago Symphony Orchestra
  by artist: Sir Georg Solti
  in album: Wagner: Der fliegende Holländer
    type: MusicAlbum
    date published: 1977-05-02
  popularity: 12
  genre: classical
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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track: Der fliegende Holländer, Act I: He! Holla! Steuermann
track: Der fliegende Holländer, Act I: Durch Sturm und bösen Wind verschlagen
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  by artist: Norman Bailey
  by artist: Martti Talvela
  by artist: Chicago Symphony Orchestra
  by artist: Sir Georg Solti
  in album: Wagner: Der fliegende Holländer
    type: MusicAlbum
    date published: 1977-05-02
  popularity: 10
  genre: classical
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  additional property: OTSBitcoinBlock
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  subject of: OpenTimestamps Proof of Existence
  audio: Der fliegende Holländer, Act I: Durch Sturm und bösen Wind verschlagen
track: Der fliegende Holländer, Act I: Wie? Hör ich recht? – Südwind! Südwind!
track: Der fliegende Holländer, Act I: Mit Gewitter und Sturm aus fernem Meer "Sailors' Chorus"
track: Der fliegende Holländer, Act II: Summ und brumm, du gutes Rädchen "Spinning Chorus"
track: Der fliegende Holländer, Act II: Du böses Kind, wenn du nicht spinnst
track: Der fliegende Holländer, Act II: Johohoe! Traft ihr das Schiff im Meere an "Senta's Ballad"
track: Der fliegende Holländer, Act II: Ach, wo weilt sie
track: Der fliegende Holländer, Act II: Senta! Willst du mich verderben?
track: Der fliegende Holländer, Act II: Bleib, Senta! – Mein Herz, voll Treue – Auf hohem Felsen
track: Der fliegende Holländer, Act II: Mögst du, mein Kind, den fremden Mann willkommen heißen
track: Der fliegende Holländer, Act II: Wie aus der Ferne – Wirst du des Vaters – Ein heil'ger Balsam
track: Der fliegende Holländer, Act II: Verzeiht! Mein Volk hält draußen sich nicht mehr
track: Der fliegende Holländer, Act III: Entracte
track: Der fliegende Holländer, Act III: Steuermann, laß die Wacht! "Sailors' Chorus"
track: Der fliegende Holländer, Act III: Johohoe! Johohoe! Hoe! Hoe!
track: Der fliegende Holländer, Act III: Was mußt ich hören
track: Der fliegende Holländer, Act III: Verloren! Ach, verloren!
track: Der fliegende Holländer, Act III: Du kennst mich nicht, du ahnest nicht

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cbaaa02e63694c2e17d59bed5dea6398bc26f93c42344631e96a2f9028e0e4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640106.
date published: 2026-07-02T11:34:59Z

Der fliegende Holländer, Act I: Durch Sturm und bösen Wind verschlagen
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additional property: Valence (Positivity)
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Der fliegende Holländer, Act I: Mit Gewitter und Sturm aus fernem Meer "Sailors' Chorus"
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duration: PT2M28S
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by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
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  date published: 1977-05-02
popularity: 9
genre: classical
genre: opera
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d0fd17bc1f1735e217ddb977a520635171a3d1bfb61d4420ab427d0f97556a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640108.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act I: Mit Gewitter und Sturm aus fernem Meer "Sailors' Chorus"
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Der fliegende Holländer, Act II: Summ und brumm, du gutes Rädchen "Spinning Chorus"
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duration: PT3M52S
duration ms: 232600
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by artist: Richard Wagner
by artist: Isola Jones
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 10
genre: classical
genre: opera
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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: 2026-07-02T03:55:08Z
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Der fliegende Holländer, Act II: Du böses Kind, wenn du nicht spinnst
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by artist: Chicago Symphony Chorus
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genre: classical
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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: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Du böses Kind, wenn du nicht spinnst
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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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Der fliegende Holländer, Act II: Johohoe! Traft ihr das Schiff im Meere an "Senta's Ballad"
type: MusicRecording
duration: PT6M12S
duration ms: 372680
explicit: false
by artist: Richard Wagner
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
by artist: Janis Martin
by artist: Chicago Symphony Chorus
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 10
genre: classical
genre: opera
isrc code: GBF077640111
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0ca1f29bf2a9b7d252b479bc41efd36bcca7f6f140401e61518d54b366d1e549
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/GBF077640111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca1f29bf2a9b7d252b479bc41efd36bcca7f6f140401e61518d54b366d1e549. 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/GBF077640111.
  date published: 2026-07-02T03:55:08Z
audio: Der fliegende Holländer, Act II: Johohoe! Traft ihr das Schiff im Meere an "Senta's Ballad"
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  additional property: Tempo (BPM)
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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
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Der fliegende Holländer, Act II: Ach, wo weilt sie
type: MusicRecording
duration: PT1M29S
duration ms: 89133
explicit: false
by artist: Richard Wagner
by artist: Janis Martin
by artist: Isola Jones
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 9
genre: classical
genre: opera
isrc code: GBF077640112
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/0x62ab9b843ca8ada042341277f565327391aa9fd681d68625b728580394015e9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x62ab9b843ca8ada042341277f565327391aa9fd681d68625b728580394015e9e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640112.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Ach, wo weilt sie
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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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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  additional property: Loudness (dB)
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Der fliegende Holländer, Act II: Senta! Willst du mich verderben?
type: MusicRecording
duration: PT1M57S
duration ms: 117600
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Isola Jones
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 9
genre: classical
genre: opera
isrc code: GBF077640113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:13:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa076a4cc2ea3859a647ba1de3e4715fa37e946f0cf5c2216c4917c35e15c6d69
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640113
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xa076a4cc2ea3859a647ba1de3e4715fa37e946f0cf5c2216c4917c35e15c6d69. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640113.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Senta! Willst du mich verderben?
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Der fliegende Holländer, Act II: Bleib, Senta! – Mein Herz, voll Treue – Auf hohem Felsen
type: MusicRecording
duration: PT12M42S
duration ms: 762133
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 8
genre: classical
genre: opera
isrc code: GBF077640114
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xa2ce6c428a1abd51541810b71abab8f6e5e3d0d859988ce508435c2580edd4cd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640114.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Bleib, Senta! – Mein Herz, voll Treue – Auf hohem Felsen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  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: 0.261
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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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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    value: Bb
  additional property: Mode Name
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Der fliegende Holländer, Act II: Mögst du, mein Kind, den fremden Mann willkommen heißen
type: MusicRecording
duration: PT6M21S
duration ms: 381386
explicit: false
by artist: Richard Wagner
by artist: Martti Talvela
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 8
genre: classical
genre: opera
isrc code: GBF077640116
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4563f3ffae8e51626f9a70575efd4ae630376141e1ee5efd50e54df3057685ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640116
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x4563f3ffae8e51626f9a70575efd4ae630376141e1ee5efd50e54df3057685ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640116.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Mögst du, mein Kind, den fremden Mann willkommen heißen
  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: 0.337
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.193
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.954
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Der fliegende Holländer, Act II: Wie aus der Ferne – Wirst du des Vaters – Ein heil'ger Balsam
type: MusicRecording
duration: PT14M27S
duration ms: 867333
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 8
genre: classical
genre: opera
isrc code: GBF077640117
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:31:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe10ae9bfe9464f1088efadde685ed1b078083fee63069d5ce6a216f0e869886
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xbe10ae9bfe9464f1088efadde685ed1b078083fee63069d5ce6a216f0e869886. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640117.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act II: Wie aus der Ferne – Wirst du des Vaters – Ein heil'ger Balsam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.131
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.261
  additional property: Energy
    type: PropertyValue
    value: 0.237
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.745
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.197
  additional property: Key Name
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    value: E
  additional property: Mode Name
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Der fliegende Holländer, Act II: Verzeiht! Mein Volk hält draußen sich nicht mehr
type: MusicRecording
duration: PT1M55S
duration ms: 115666
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: Martti Talvela
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 7
genre: classical
genre: opera
isrc code: GBF077640118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:25:23+00:00
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/956889
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 0xfdf9ea98b84debe2449ec1c45bd5e3e6e732db1afc8dc285e1d0201a5a19e317. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640118.
  date published: 2026-07-06T06:56:49Z
audio: Der fliegende Holländer, Act II: Verzeiht! Mein Volk hält draußen sich nicht mehr
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  additional property: Valence (Positivity)
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Der fliegende Holländer, Act III: Entracte
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duration: PT0M52S
duration ms: 52440
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by artist: Richard Wagner
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
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  date published: 1977-05-02
popularity: 7
genre: classical
genre: opera
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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/GBF077640119
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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5badfff935306f0309d284cc7fac942e356e2a28ac5373a7bc04771a2c5841c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640119.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act III: Entracte
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Der fliegende Holländer, Act III: Johohoe! Johohoe! Hoe! Hoe!
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duration: PT3M56S
duration ms: 236506
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by artist: Richard Wagner
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 8
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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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/GBF077640121
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x852f95cea942f031f80e675080b596965a19c79c4ea43500451826a295584ad9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640121.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act III: Johohoe! Johohoe! Hoe! Hoe!
  type: AudioObject
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Der fliegende Holländer, Act III: Was mußt ich hören
type: MusicRecording
duration: PT2M34S
duration ms: 154066
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 6
genre: classical
genre: opera
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640122
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 0x186279cec89ed8fb574a1b3462bfeb98112f093399d8123978e5eb4dee0cf5e2. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBF077640122.
  date published: 2026-07-13T07:54:01Z
audio: Der fliegende Holländer, Act III: Was mußt ich hören
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Der fliegende Holländer, Act III: Verloren! Ach, verloren!
type: MusicRecording
duration: PT2M30S
duration ms: 150600
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: René Kollo
by artist: Janis Martin
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 6
genre: classical
genre: opera
isrc code: GBF077640124
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
  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 0x1ee9ee894e8485f9f8dc9fafa12b934c2aa7bb81ea9c578cc0c0ed676e9ee076. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640124.
  date published: 2026-07-06T06:56:49Z
audio: Der fliegende Holländer, Act III: Verloren! Ach, verloren!
  type: AudioObject
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  additional property: Mode (Major/Minor)
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Der fliegende Holländer, Act III: Du kennst mich nicht, du ahnest nicht
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duration: PT3M11S
duration ms: 191906
explicit: false
by artist: Richard Wagner
by artist: Norman Bailey
by artist: Martti Talvela
by artist: René Kollo
by artist: Isola Jones
by artist: Janis Martin
by artist: Chicago Symphony Chorus
by artist: Chicago Symphony Orchestra
by artist: Sir Georg Solti
in album: Wagner: Der fliegende Holländer
  type: MusicAlbum
  date published: 1977-05-02
popularity: 8
genre: classical
genre: opera
isrc code: GBF077640126
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
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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 0xecb4a3bb233b566e0964424766ba0134e7acc9df77f160bfa673e088f4d33ac1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077640126.
  date published: 2026-07-02T05:09:12Z
audio: Der fliegende Holländer, Act III: Du kennst mich nicht, du ahnest nicht
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The Art of Joan Sutherland
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date published: 2004-01-01
track: Otello / Act 4: "Mia madre aveva una povera ancella...piangea cantando"
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  duration: PT8M4S
  duration ms: 484000
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  by artist: Giuseppe Verdi
  by artist: Dame Joan Sutherland
  by artist: Orchestra of the Royal Opera House, Covent Garden
  by artist: Francesco Molinari-Pradelli
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    type: MusicAlbum
    date published: 2004-01-01
  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
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Otello / Act 4: "Mia madre aveva una povera ancella...piangea cantando"
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Karajan A-Z: Holst - Liszt
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date published: 2024-08-02
track: The Planets, Op. 32: I. Mars, the Bringer of War
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track: Die lustige Witwe, Act II: No. 10b, Valse moderato
track: Die lustige Witwe, Act II: Dialogue. Ah, die Baronin und Herr Rosillon
track: Die lustige Witwe, Act II: No. 12, Finale. e. Es waren zwei Königskinder

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OpenTimestamps Proof of Existence
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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Die lustige Witwe, Act II: Dialogue. Ah, die Baronin und Herr Rosillon
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The Gundula Janowitz Edition
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  by artist: Tom Krause
  by artist: Stuttgart Chamber Orchestra
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Magnificat in D Major, BWV 243: Aria "Quia fecit mihi magna"
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    additional property: Valence (Positivity)
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J.S. Bach: Cantatas BWV 130, BWV 101, BWV 67 (Elly Ameling – The Bach Edition, Vol. 5)
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Karajan A-Z: Mozart
type: MusicAlbum
date published: 2024-07-12
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  by artist: Orchestra Sinfonica Di Torino Della Rai
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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: Symphony No. 35 in D Major, K. 385 "Haffner": I. Allegro con spirito
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  by artist: Wolfgang Amadeus Mozart
  by artist: Orchestra Sinfonica della RAI de Torino
  by artist: Herbert von Karajan
  by artist: Orchestra Sinfonica Di Torino Della Rai
  in album: Karajan A-Z: Mozart
    type: MusicAlbum
    date published: 2024-07-12
  popularity: 10
  genre: classical
  genre: classical-era
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
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  by artist: Orchestra Sinfonica della RAI de Torino
  by artist: Herbert von Karajan
  by artist: Orchestra Sinfonica Di Torino Della Rai
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  subject of: OpenTimestamps Proof of Existence
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track: Symphony No. 29 in A Major, K. 201: I. Allegro moderato
track: Symphony No. 29 in A Major, K. 201: II. Andante
track: Symphony No. 32 in G Major, K. 318: III. Tempo I

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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd0373d25a020491e11b87b729f94c32e1762ddfb67023f030d434120c1323b. 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/DEF054202052.
date published: 2026-07-08T03:20:19Z

Symphony No. 40 in G Minor, K. 550 (1st Version, No Clarinets): II. Andante
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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duration: PT7M5S
duration ms: 425333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Mozart
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  date published: 2024-07-12
popularity: 7
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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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: 2026-07-08T03:20:19Z
audio: Symphony No. 29 in A Major, K. 201: I. Allegro moderato
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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popularity: 6
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: 2026-07-08T03:22:41Z
audio: Symphony No. 29 in A Major, K. 201: II. Andante
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Karajan A-Z: Mozart
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popularity: 14
genre: classical
genre: classical-era
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The History Of Classical Music - Part 2 - From Haydn To Paganini
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Lehár: Die lustige Witwe
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track: Die lustige Witwe, Act III: Entracte. Vilja-Lied
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  audio: Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
track: Die lustige Witwe, Act I: No. 3, Bitte meine Herr'n – Hab' in Paris mich noch nicht ganz so akklimasiert
track: Die lustige Witwe, Act I: Accompanied Dialogue. Ah, gnädige Frau, ich bin glücklich
track: Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
track: Die lustige Witwe, Act III: Dialogue. Gospodina!
track: Die lustige Witwe, Act I: No. 6, Finale: a. Damenwahl!
track: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
track: Die lustige Witwe, Act II: No. 7b, Nun lasst uns aber wie daheim – Vilja-Lied. Es lebt ein Vilja
track: Light Cavalry: Overture
track: Die lustige Witwe, Act II: Dialogue. Gospodina, dieses vaterländische Fest
track: Die schöne Galathee: Overture
track: Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann
track: Die lustige Witwe, Act II: No. 10b, Valse moderato
track: Die lustige Witwe, Act II: No. 11a, Duet. Mein Freund, Vernunft!
track: Die lustige Witwe, Act II: Dialogue. Ah, die Baronin und Herr Rosillon
track: Die lustige Witwe, Act II: No. 12, Finale: a. Ha! Ha! Wir fragen
track: Die lustige Witwe, Act II: No. 12, Finale: d. Die Ehe ist für mich privat
track: Die lustige Witwe, Act II: No. 12, Finale. e. Es waren zwei Königskinder

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Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
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Die lustige Witwe, Act I: No. 3, Bitte meine Herr'n – Hab' in Paris mich noch nicht ganz so akklimasiert
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Die lustige Witwe, Act I: Accompanied Dialogue. Ah, gnädige Frau, ich bin glücklich
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Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
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Die lustige Witwe, Act III: Dialogue. Gospodina!
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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: Die lustige Witwe, Act III: Dialogue. Gospodina!
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Die lustige Witwe, Act I: No. 6, Finale: a. Damenwahl!
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by artist: Elizabeth Harwood
by artist: René Kollo
by artist: Donald Grobe
by artist: Werner Krenn
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Chor der Deutschen Oper Berlin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:50:41Z
audio: Die lustige Witwe, Act I: No. 6, Finale: a. Damenwahl!
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Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
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by artist: Franz Lehár
by artist: Catherine Ott
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by artist: Elizabeth Harwood
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by artist: Mechthild Gessendorf
by artist: Carol Pritchett
by artist: Kaja Boris
by artist: René Kollo
by artist: Martin Vantin
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by artist: Berliner Philharmoniker
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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
audio: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
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Die lustige Witwe, Act II: No. 7b, Nun lasst uns aber wie daheim – Vilja-Lied. Es lebt ein Vilja
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Chor der Deutschen Oper Berlin
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Die lustige Witwe, Act II: No. 7b, Nun lasst uns aber wie daheim – Vilja-Lied. Es lebt ein Vilja
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Light Cavalry: Overture
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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additional property: OTSVerificationAPI
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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: Light Cavalry: Overture
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Die lustige Witwe, Act II: Dialogue. Gospodina, dieses vaterländische Fest
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duration: PT0M38S
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by artist: Zoltan Kelemen
by artist: Karl Renar
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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
audio: Die lustige Witwe, Act II: Dialogue. Gospodina, dieses vaterländische Fest
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Die schöne Galathee: Overture
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by artist: Herbert von Karajan
by artist: Berliner Philharmoniker
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Die schöne Galathee: Overture
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Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann
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genre: opera
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  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 0xb00f69555f9ed9d5b65f87cc91b5471173b904756e882053d249738a57025b1a. 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/DEF057230407.
  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe, Act II: No. 8, Duet. Heia, Mädel, aufgeschaut – Dummer, dummer Reitersmann
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Die lustige Witwe, Act II: No. 10b, Valse moderato
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duration: PT2M17S
duration ms: 137493
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by artist: Franz Lehár
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
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  date published: 1992-01-01
genre: opera
isrc code: DEF057230414
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230414
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: 2026-07-02T03:30:09Z
audio: Die lustige Witwe, Act II: No. 10b, Valse moderato
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Die lustige Witwe, Act II: No. 11a, Duet. Mein Freund, Vernunft!
type: MusicRecording
duration: PT1M28S
duration ms: 88266
explicit: false
by artist: Franz Lehár
by artist: Teresa Stratas
by artist: Werner Hollweg
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230428
additional property: CopyrightID
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/DEF057230428
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6608b706ab3d3599364fa52972ea0830a5b86d85f08d556e6e23261e51db74. 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/DEF057230428.
  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe, Act II: No. 11a, Duet. Mein Freund, Vernunft!
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Die lustige Witwe, Act II: Dialogue. Ah, die Baronin und Herr Rosillon
type: MusicRecording
duration: PT0M54S
duration ms: 54400
explicit: false
by artist: Franz Lehár
by artist: René Kollo
by artist: Karl Renar
by artist: Zoltan Kelemen
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230429
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
  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/DEF057230429
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e5b786fffa4ec44ac2d75dabc09fda02618b37aefcdb190340155f894c36acb. 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/DEF057230429.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe, Act II: Dialogue. Ah, die Baronin und Herr Rosillon
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  additional property: Tempo (BPM)
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  additional property: Energy
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  additional property: Acousticness
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Die lustige Witwe, Act II: No. 12, Finale: a. Ha! Ha! Wir fragen
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duration: PT1M40S
duration ms: 100266
explicit: false
by artist: Franz Lehár
by artist: Elizabeth Harwood
by artist: Teresa Stratas
by artist: René Kollo
by artist: Werner Hollweg
by artist: Zoltan Kelemen
by artist: Karl Renar
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230430
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 0x29b0b9b4e65c129667fb616cd3d3f91ff7d34caf77f4b6091e29e7fa28dce8e1. 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/DEF057230430.
  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe, Act II: No. 12, Finale: a. Ha! Ha! Wir fragen
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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Die lustige Witwe, Act II: No. 12, Finale: d. Die Ehe ist für mich privat
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duration: PT4M20S
duration ms: 260040
explicit: false
by artist: Franz Lehár
by artist: Elizabeth Harwood
by artist: Teresa Stratas
by artist: René Kollo
by artist: Werner Hollweg
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Chor der Deutschen Oper Berlin
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230432
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
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd7cb661638a0945b39f139e55850910f22e6cb3fb3a93a35ce48a28dff9163. 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/DEF057230432.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe, Act II: No. 12, Finale: d. Die Ehe ist für mich privat
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Die lustige Witwe, Act II: No. 12, Finale. e. Es waren zwei Königskinder
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duration: PT4M20S
duration ms: 260333
explicit: false
by artist: Franz Lehár
by artist: Elizabeth Harwood
by artist: René Kollo
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230433
additional property: CopyrightID
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: 2026-07-08T03:22:41Z
audio: Die lustige Witwe, Act II: No. 12, Finale. e. Es waren zwei Königskinder
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Mozart 225: Masonic Music
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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  subject of: OpenTimestamps Proof of Existence
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track: Laut verkünde unsre Freude, K.623: 1. Coro - Recitativo: "Laut verkünde unsre Freude"
track: Laut verkünde unsre Freude, K.623: 5. Allegro: "Laut verkünde unsre Freude"

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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c9f0f21c19d83715725ac17955f3200a9067eed739215ee9f099bfa474f83. 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/GBF076810611.
date published: 2026-07-08T03:20:19Z

Dir, Seele des Weltalls, K.429: 1. "Dir, Seele des Weltalls"
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Laut verkünde unsre Freude, K.623: 1. Coro - Recitativo: "Laut verkünde unsre Freude"
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by artist: Andreas Schmidt
by artist: Radio Chorus Leipzig, Male Chorus
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by artist: Peter Schreier
by artist: MDR Rundfunkchor
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Laut verkünde unsre Freude, K.623: 1. Coro - Recitativo: "Laut verkünde unsre Freude"
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Laut verkünde unsre Freude, K.623: 5. Allegro: "Laut verkünde unsre Freude"
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by artist: Radio Chorus Leipzig, Male Chorus
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by artist: MDR Rundfunkchor
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Laut verkünde unsre Freude, K.623: 5. Allegro: "Laut verkünde unsre Freude"
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Schön ist die Welt: Operetten Highlights
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Best of Operette
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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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track: Liebe du Himmel auf Erden
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track: Die Fledermaus / Act 1: Nr.3 Duett: "Komm mit mir zum Souper"
track: Draussen in Sievering (Arr. Stalla)
track: Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
track: Wiener Blut (Operetta) / Act 2: Wiener Blut
track: Die lustige Witwe / Act 1: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
track: Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
track: Boccaccio: Hab' ich nur deine Liebe
track: Der Zigeunerbaron / Act 2: Duet: Wer uns getraut
track: Ein Walzertraum - Operetta In 3 Acts: Piccolo-Duett

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T08:56:20Z

Die Fledermaus / Act 2: "Mein Herr Marquis"
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Die Fledermaus / Act 1: Nr.3 Duett: "Komm mit mir zum Souper"
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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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Draussen in Sievering (Arr. Stalla)
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audio: Draussen in Sievering (Arr. Stalla)
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Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
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audio: Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
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Wiener Blut (Operetta) / Act 2: Wiener Blut
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audio: Wiener Blut (Operetta) / Act 2: Wiener Blut
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Die lustige Witwe / Act 1: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
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Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
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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: Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
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Boccaccio: Hab' ich nur deine Liebe
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by artist: Renate Holm
by artist: Werner Krenn
by artist: Vienna Volksoper Orchestra
by artist: Anton Paulik
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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: Boccaccio: Hab' ich nur deine Liebe
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Der Zigeunerbaron / Act 2: Duet: Wer uns getraut
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by artist: Vienna Volksoper Orchestra
by artist: Anton Paulik
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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: Der Zigeunerbaron / Act 2: Duet: Wer uns getraut
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Ein Walzertraum - Operetta In 3 Acts: Piccolo-Duett
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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: Ein Walzertraum - Operetta In 3 Acts: Piccolo-Duett
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Meine Lippen sie küssen so heiss - Operetta's Greatest Hits
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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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track: Draussen in Sievering (Arr. Stalla)
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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: Requiem; Great Mass in C minor; Missa brevis in C major
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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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    type: MusicAlbum
    date published: 1998-01-01
  genre: classical
  genre: classical-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957052
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:50:41Z
  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 0x91b2463f0539c20f2b3ea3c1e68c1c98093fdacfa53acfdca903294687ee3334. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEF057530003.
    date published: 2026-07-07T14:50:41Z
  audio: Requiem, K. 626: II. Kyrie
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    additional property: Liveness
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    additional property: Valence (Positivity)
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track: Mass in C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gloria in excelsis Deo
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  by artist: Wolfgang Amadeus Mozart
  by artist: Martin Haselböck
  by artist: Wiener Philharmoniker
  by artist: James Levine
  by artist: Wiener Staatsopernchor
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    type: MusicAlbum
    date published: 1998-01-01
  genre: classical
  genre: classical-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mass in C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gloria in excelsis Deo
track: Requiem, K. 626: IIIa. Dies irae
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Laudamus te
track: Requiem, K. 626: IIIb. Tuba mirum
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gratias
track: Requiem, K. 626: IIIc. Rex tremendae
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Domine
track: Requiem, K. 626: IIId. Recordare
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Qui tollis
track: Requiem, K. 626: IIIe. Confutatis
track: Requiem, K. 626: IIIf. Lacrimosa
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Jesu Christe
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Cum Sancto spiritu
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Credo: Credo in unum Deum
track: Requiem, K. 626: VII. Agnus Dei
track: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Benedictus
track: Missa brevis In C, K.220 "Spatzenmesse": 1. Kyrie

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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xa44534e22f071e6b5bb28aecda728bbc5d87ab4f1c9ca7f552054c8e08dfff5c

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OTSBitcoinBlock
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value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731502

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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 0xa44534e22f071e6b5bb28aecda728bbc5d87ab4f1c9ca7f552054c8e08dfff5c. 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/DEF058731502.
date published: 2026-07-08T03:22:41Z

Mass in C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gloria in excelsis Deo
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Requiem, K. 626: IIIa. Dies irae
type: MusicRecording
duration: PT1M52S
duration ms: 112000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T19:24:34+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd90ddd6c481a8bea94218b55013deaf86f2db03271e5150237b3018a419a7f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530004.
  date published: 2026-07-02T11:34:59Z
audio: Requiem, K. 626: IIIa. Dies irae
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Laudamus te
type: MusicRecording
duration: PT5M7S
duration ms: 307000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lella Cuberli
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731503
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:35:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f6b8b8ca171e7de03905d5bfe28425e10d5e9f5b5b193ab204e36c2b0d99423
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/DEF058731503
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6b8b8ca171e7de03905d5bfe28425e10d5e9f5b5b193ab204e36c2b0d99423. 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/DEF058731503.
  date published: 2026-07-08T03:22:41Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Laudamus te
  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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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.128
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Requiem, K. 626: IIIb. Tuba mirum
type: MusicRecording
duration: PT4M13S
duration ms: 253066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530005
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e219df033cf90e365d0bc2b70eff79ca84414550c91c09cb6e2efe6b615c0c3. 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/DEF057530005.
  date published: 2026-07-08T03:22:41Z
audio: Requiem, K. 626: IIIb. Tuba mirum
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  additional property: Mode Name
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Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gratias
type: MusicRecording
duration: PT1M36S
duration ms: 96000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: 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/DEF058731504
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf366bbdb6a6954368cfd7afbc8b6e10f1573213ab708f8553505670bd6c688. 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/DEF058731504.
  date published: 2026-07-08T03:53:27Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Gratias
  type: AudioObject
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  additional property: Mode (Major/Minor)
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  additional property: Speechiness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Requiem, K. 626: IIIc. Rex tremendae
type: MusicRecording
duration: PT2M27S
duration ms: 147000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530006
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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  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/DEF057530006
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 0x09c738bfa4f9841123518c0519e64383454f26e07daaa75541f50f011fca0f71. 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/DEF057530006.
  date published: 2026-07-08T03:20:19Z
audio: Requiem, K. 626: IIIc. Rex tremendae
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.393
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.209
  additional property: Energy
    type: PropertyValue
    value: 0.171
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.133
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.403
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Domine
type: MusicRecording
duration: PT2M48S
duration ms: 168000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kathleen Battle
by artist: Lella Cuberli
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:28:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11679484b91e08e3aac1592a5f6072acce932c5fbb71f3dff491ad7073d09ed3
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/DEF058731505
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 0x11679484b91e08e3aac1592a5f6072acce932c5fbb71f3dff491ad7073d09ed3. 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/DEF058731505.
  date published: 2026-07-08T03:53:27Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Domine
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.548
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.293
  additional property: Energy
    type: PropertyValue
    value: 0.131
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.096
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.902
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem, K. 626: IIId. Recordare
type: MusicRecording
duration: PT5M18S
duration ms: 318173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anna Tomowa-Sintow
by artist: Agnes Baltsa
by artist: Werner Krenn
by artist: José van Dam
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T08:03:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0b05fb78c7f5eb822f07c831055e4d71273266cbece729e10fcb52f32b81a61
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/DEF057530007
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 0xf0b05fb78c7f5eb822f07c831055e4d71273266cbece729e10fcb52f32b81a61. 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/DEF057530007.
  date published: 2026-07-08T03:22:41Z
audio: Requiem, K. 626: IIId. Recordare
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.83
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.152
  additional property: Energy
    type: PropertyValue
    value: 0.127
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.193
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.066
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.802
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Qui tollis
type: MusicRecording
duration: PT7M14S
duration ms: 434000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:23:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a2989aa69db406ed8b5ed92d4d5d261b50016ddcbe605586b99db9574adaf17
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/DEF058731506
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 0x6a2989aa69db406ed8b5ed92d4d5d261b50016ddcbe605586b99db9574adaf17. 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/DEF058731506.
  date published: 2026-07-08T03:20:19Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Qui tollis
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.759
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.152
  additional property: Energy
    type: PropertyValue
    value: 0.227
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.908
  additional property: Liveness
    type: PropertyValue
    value: 0.249
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.846
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem, K. 626: IIIe. Confutatis
type: MusicRecording
duration: PT2M24S
duration ms: 144826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T13:18:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7697b34f82d0344c84ce81a5a9550a4c7a3d42265bc6b9e4ca3b3c601086594c
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/DEF057530008
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 0x7697b34f82d0344c84ce81a5a9550a4c7a3d42265bc6b9e4ca3b3c601086594c. 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/DEF057530008.
  date published: 2026-07-08T03:22:41Z
audio: Requiem, K. 626: IIIe. Confutatis
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.234
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.184
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.926
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.006
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem, K. 626: IIIf. Lacrimosa
type: MusicRecording
duration: PT3M22S
duration ms: 202000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Wiener Singverein
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:03:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6386d0f0bc6a2d08459cf846e978def80bc41102397ad8e0c313c906f4d3ac1f
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/DEF057530001
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 0x6386d0f0bc6a2d08459cf846e978def80bc41102397ad8e0c313c906f4d3ac1f. 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/DEF057530001.
  date published: 2026-07-08T03:20:19Z
audio: Requiem, K. 626: IIIf. Lacrimosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.726
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.145
  additional property: Energy
    type: PropertyValue
    value: 0.11
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.186
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.068
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Jesu Christe
type: MusicRecording
duration: PT0M43S
duration ms: 43133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731508
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:26:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb7f8e9dc547a7f0f6758dac04e79dd98044c3bf96c08b7ff1d400367ff1efa67
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/DEF058731508
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 0xb7f8e9dc547a7f0f6758dac04e79dd98044c3bf96c08b7ff1d400367ff1efa67. 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/DEF058731508.
  date published: 2026-07-08T03:53:27Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Jesu Christe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.535
  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: 0.173
  additional property: Energy
    type: PropertyValue
    value: 0.208
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.98
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.276
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.177
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Cum Sancto spiritu
type: MusicRecording
duration: PT4M0S
duration ms: 240866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731509
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:45:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8433c6d0c382b3a02d7a03d8aa766dfc763472ee4f4bcb7e49ac1da7b6640ff7
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731509
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 0x8433c6d0c382b3a02d7a03d8aa766dfc763472ee4f4bcb7e49ac1da7b6640ff7. 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/DEF058731509.
  date published: 2026-07-08T03:22:41Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Gloria: Cum Sancto spiritu
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    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
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Credo: Credo in unum Deum
type: MusicRecording
duration: PT3M43S
duration ms: 223000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Martin Haselböck
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731510
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T04:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3eebd2390fda1b43b85f6f3fb42e04fa1069f3d23a1b6abd39b256a373e787ed
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058731510
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 0x3eebd2390fda1b43b85f6f3fb42e04fa1069f3d23a1b6abd39b256a373e787ed. 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/DEF058731510.
  date published: 2026-07-08T03:53:27Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Credo: Credo in unum Deum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.348
  additional property: Musical Key
    type: PropertyValue
    value: 0
  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: 0.429
  additional property: Energy
    type: PropertyValue
    value: 0.349
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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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)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Requiem, K. 626: VII. Agnus Dei
type: MusicRecording
duration: PT3M35S
duration ms: 215240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
by artist: Rudolf Scholz
by artist: Wiener Singverein
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF057530013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0910d0d218d1790dfe068fc9b3b728cb3fd65acb8e4b0e4d2ad2562e1db17a3f
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/DEF057530013
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 0x0910d0d218d1790dfe068fc9b3b728cb3fd65acb8e4b0e4d2ad2562e1db17a3f. 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/DEF057530013.
  date published: 2026-07-08T03:20:19Z
audio: Requiem, K. 626: VII. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 110.881
  additional property: Musical Key
    type: PropertyValue
    value: 5
  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: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.879
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.761
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Benedictus
type: MusicRecording
duration: PT6M5S
duration ms: 365000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Kathleen Battle
by artist: Lella Cuberli
by artist: Peter Seiffert
by artist: Kurt Moll
by artist: Martin Haselböck
by artist: Wiener Philharmoniker
by artist: James Levine
by artist: Wiener Staatsopernchor
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF058731514
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:59:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x401c3953cfc468008eea7b245d913fcb8ae50c2fd5f3cbc5187854aaf7f7ab67
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/DEF058731514
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 0x401c3953cfc468008eea7b245d913fcb8ae50c2fd5f3cbc5187854aaf7f7ab67. 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/DEF058731514.
  date published: 2026-07-08T03:22:41Z
audio: Mass In C Minor, K.427 "Grosse Messe" - Rev. And Reconstr. By H.C. Robbins Landon: Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.86
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.272
  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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Missa brevis In C, K.220 "Spatzenmesse": 1. Kyrie
type: MusicRecording
duration: PT1M43S
duration ms: 103133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edith Mathis
by artist: Tatiana Troyanos
by artist: Horst Laubenthal
by artist: Kieth Engen
by artist: Bavarian Radio Symphony Orchestra
by artist: Rafael Kubelík
by artist: Regensburger Domspatzen
by artist: Hans Schrems
in album: Mozart: Requiem; Great Mass in C minor; Missa brevis in C major
  type: MusicAlbum
  date published: 1998-01-01
genre: classical
genre: classical-era
isrc code: DEF056802141
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:23:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc5742267f62d343f28bd974b0f3f395d98bf19a3fcbb2b0c28c2b70f9d2c7ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056802141
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xdc5742267f62d343f28bd974b0f3f395d98bf19a3fcbb2b0c28c2b70f9d2c7ac. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056802141.
  date published: 2026-07-02T05:09:12Z
audio: Missa brevis In C, K.220 "Spatzenmesse": 1. Kyrie
  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: 0.428
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  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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