Constanze Backes
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genre: opera
description: Constanze Backes is a classically trained German soprano in opera and concert. She has toured throughout Europe and performed in many classical genres but over the last few years has focused primarily
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  track: Christ lag in Todesbanden: Versus V
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    audio: Christ lag in Todesbanden: Versus V
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  track: Christ lag in Todes Banden, BWV 4: Versus I
album: Ist das Kultur oder kann das weg?
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Operis primi pars prior continens moteta: O bone Iesu - VRT Muziek Edition
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  date published: 2026-07-08T03:53:27Z
audio: Operis primi pars prior continens moteta: O bone Iesu - VRT Muziek Edition
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Die lustige Witwe: Overture
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audio: Die lustige Witwe: Overture
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Die lustige Witwe / Act II: "Ha!Ha!" - "Wir fragen, was man von uns will!"
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Die lustige Witwe / Act III: "Graf Dailowitsch.." - "Ja, wir sind es, die Grisetten"
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by artist: Barbara Bonney
by artist: Lucinda Houghton
by artist: Constanze Backes
by artist: Angela Kazimierczuk
by artist: Donna Deam
by artist: Suzanne Flowers
by artist: Nicola Jenkin
by artist: Bryn Terfel
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by artist: Julian Clarkson
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  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe / Act III: "Graf Dailowitsch.." - "Ja, wir sind es, die Grisetten"
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Die lustige Witwe / Act III: "Ja, das Studium der Weiber ist schwer"
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by artist: Cheryl Studer
by artist: Bryn Terfel
by artist: Bo Skovhus
by artist: Barbara Bonney
by artist: Lucinda Houghton
by artist: Constanze Backes
by artist: Angela Kazimierczuk
by artist: Donna Deam
by artist: Suzanne Flowers
by artist: Nicola Jenkin
by artist: Philip Salmon
by artist: Richard Savage
by artist: Julian Clarkson
by artist: Wiener Philharmoniker
by artist: John Eliot Gardiner
by artist: The Monteverdi Choir
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
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Die Zauberflöte, K.620 / Act 2: Dialog "Da bin ich schon, mein Engel" (Weib, Papageno, Sprecher)
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by artist: Detlef Roth
by artist: English Baroque Soloists
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  date published: 2026-07-08T03:53:27Z
audio: Die Zauberflöte, K.620 / Act 2: Dialog "Da bin ich schon, mein Engel" (Weib, Papageno, Sprecher)
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Die Zauberflöte, K.620 / Act 2: "Papagena! Weibchen! Täubchen!" - "Pa-pa-gena!" / "Pa- pa-geno!" (Papageno, Die drei Knaben, Papagena / Papageno, Papagena)
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by artist: Andreas Dieterich
by artist: Florian Wöller
by artist: Jan Andreas Mendel
by artist: Gerald Finley
by artist: Constanze Backes
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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audio: Die Zauberflöte, K.620 / Act 2: "Papagena! Weibchen! Täubchen!" - "Pa-pa-gena!" / "Pa- pa-geno!" (Papageno, Die drei Knaben, Papagena / Papageno, Papagena)
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L'incoronazione di Poppea, SV 308 / Act II: Sento un certo non so che
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duration: PT2M7S
duration ms: 127800
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by artist: Marinella Pennicchi
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  date published: 2026-07-08T03:22:41Z
audio: L'incoronazione di Poppea, SV 308 / Act II: Sento un certo non so che
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L'incoronazione di Poppea, SV 308 / Act II: Dunque amor così comincia ?
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genre: classical
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genre: baroque
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  date published: 2026-07-31T10:20:10Z
audio: L'incoronazione di Poppea, SV 308 / Act II: Dunque amor così comincia ?
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L'incoronazione di Poppea, SV 308 / Act I: Madama, con tua pace
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L'incoronazione di Poppea, SV 308 / Act III: Scendiam, scendiam
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L'incoronazione di Poppea, SV 308 / Act II: "Felice cor mio" - "Nutrice, quanto pagheresti" - "Il Giorno femminil"
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Le nozze di Figaro, K.492 / Act 3: "Andiamo, andiam, bel paggio"
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Christ lag in Todes Banden, BWV 4: Versus I
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Ist das Kultur oder kann das weg?
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Schumann - The Masterworks
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Paradiso Armonico. Italian Chamber Music in the Low Countries c. 1650 (VRT Muziek Edition)
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Beethoven: Piano Concertos Nos.1-5; Symphony No. 2, Op. 36; Fantasy For Piano, Chorus And Orchestra, Op. 80; Choral Fantasy (two altern. improv. piano introd.); Rondo For Piano And Orchestra
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      value: -28.128
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mozart Operas
type: MusicAlbum
date published: 2011-01-01
track: Idomeneo, re di Creta, K.366 / Act 2: "Odo da lunge armonioso suono" - Live
  type: MusicRecording
  duration: PT1M50S
  duration ms: 110960
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Hillevi Martinpelto
  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
  in album: Mozart Operas
    type: MusicAlbum
    date published: 2011-01-01
  popularity: 1
  genre: classical
  genre: classical-era
  isrc code: DEF059030121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T14:21:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdc1fe68f2761b308d04303186109c7757fe504bf86f50e0c024803917c7e45a0
  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/DEF059030121
  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 0xdc1fe68f2761b308d04303186109c7757fe504bf86f50e0c024803917c7e45a0. 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/DEF059030121.
    date published: 2026-07-08T03:53:27Z
  audio: Idomeneo, re di Creta, K.366 / Act 2: "Odo da lunge armonioso suono" - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.286
    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: 0.599
    additional property: Energy
      type: PropertyValue
      value: 0.008
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.032
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.339
    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.586
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Idomeneo, re di Creta, K.366 / Act 1: "Vedrommi intorno" - "Cieli!che veggo?" - "Spiagge romite" - Live
  type: MusicRecording
  duration: PT8M49S
  duration ms: 529933
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Anthony Rolfe Johnson
  by artist: Anne Sofie von Otter
  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
  in album: Mozart Operas
    type: MusicAlbum
    date published: 2011-01-01
  popularity: 2
  genre: classical
  genre: classical-era
  isrc code: DEF059030111
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:49:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa6f2c5687a18c06c59ad07a398e94c78037c901d8fe65022914324fbdf2f2dba
  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/DEF059030111
  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 0xa6f2c5687a18c06c59ad07a398e94c78037c901d8fe65022914324fbdf2f2dba. 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/DEF059030111.
    date published: 2026-07-08T03:22:41Z
  audio: Idomeneo, re di Creta, K.366 / Act 1: "Vedrommi intorno" - "Cieli!che veggo?" - "Spiagge romite" - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.992
    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: 0.317
    additional property: Energy
      type: PropertyValue
      value: 0.041
    additional property: Speechiness
      type: PropertyValue
      value: 0.064
    additional property: Acousticness
      type: PropertyValue
      value: 0.957
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.369
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.076
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.87
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Idomeneo, re di Creta, K.366 / Act 1: Intermezzo: Marcia - Live
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235666
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
  in album: Mozart Operas
    type: MusicAlbum
    date published: 2011-01-01
  popularity: 1
  genre: classical
  genre: classical-era
  isrc code: DEF059030113
  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: Idomeneo, re di Creta, K.366 / Act 1: Intermezzo: Marcia - Live
track: Idomeneo, re di Creta, K.366 / Act 1: "Nettuno s'onori" - Live
track: Idomeneo, re di Creta, K.366 / Act 2: "Se il padre perdei" - Live

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T18:47:26+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xfc89a8f296fa53a44cede52d8332c56faadda9b3970c898838c9482746d67701

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/DEF059030113

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 0xfc89a8f296fa53a44cede52d8332c56faadda9b3970c898838c9482746d67701. 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/DEF059030113.
date published: 2026-07-08T03:53:27Z

Idomeneo, re di Creta, K.366 / Act 1: Intermezzo: Marcia - Live
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 140.136
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: 0.633
additional property: Energy
  type: PropertyValue
  value: 0.112
additional property: Speechiness
  type: PropertyValue
  value: 0.049
additional property: Acousticness
  type: PropertyValue
  value: 0.954
additional property: Instrumentalness
  type: PropertyValue
  value: 0.884
additional property: Liveness
  type: PropertyValue
  value: 0.12
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.39
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.375
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

Idomeneo, re di Creta, K.366 / Act 1: "Nettuno s'onori" - Live
type: MusicRecording
duration: PT5M10S
duration ms: 310333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
by artist: The Monteverdi Choir
in album: Mozart Operas
  type: MusicAlbum
  date published: 2011-01-01
popularity: 1
genre: classical
genre: classical-era
isrc code: DEF059030114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:58:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5ce26a1088234f246d82dce999f3e06ea220aeb5e3c141479083b1cb9b3b424d
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/DEF059030114
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 0x5ce26a1088234f246d82dce999f3e06ea220aeb5e3c141479083b1cb9b3b424d. 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/DEF059030114.
  date published: 2026-07-08T03:53:27Z
audio: Idomeneo, re di Creta, K.366 / Act 1: "Nettuno s'onori" - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.327
  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: 0.392
  additional property: Energy
    type: PropertyValue
    value: 0.165
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.92
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Idomeneo, re di Creta, K.366 / Act 2: "Se il padre perdei" - Live
type: MusicRecording
duration: PT5M52S
duration ms: 352666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sylvia McNair
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart Operas
  type: MusicAlbum
  date published: 2011-01-01
popularity: 2
genre: classical
genre: classical-era
isrc code: DEF059030118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:14:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x811b718ce62d13d5648e6b3baafb129886b31d88b7c39fbc8382ec151b5d4cba
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/DEF059030118
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 0x811b718ce62d13d5648e6b3baafb129886b31d88b7c39fbc8382ec151b5d4cba. 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/DEF059030118.
  date published: 2026-07-08T03:53:27Z
audio: Idomeneo, re di Creta, K.366 / Act 2: "Se il padre perdei" - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.322
  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: 0.279
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.053
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.26
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Lehár: Die lustige Witwe
type: MusicAlbum
date published: 1994-01-01
track: Die lustige Witwe: Overture
track: Die lustige Witwe / Act I: "So kommen Sie! 's ist niemand hier!"
  type: MusicRecording
  duration: PT4M5S
  duration ms: 245826
  explicit: false
  by artist: Franz Lehár
  by artist: Barbara Bonney
  by artist: Rainer Trost
  by artist: Wiener Philharmoniker
  by artist: John Eliot Gardiner
  in album: Lehár: Die lustige Witwe
    type: MusicAlbum
    date published: 1994-01-01
  genre: opera
  isrc code: DEF059430305
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:15:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0aeda9a39eafda6d1f62d0d21b327b3b8d130c1f7fd41484771b3e7065324cf0
  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/DEF059430305
  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 0x0aeda9a39eafda6d1f62d0d21b327b3b8d130c1f7fd41484771b3e7065324cf0. 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/DEF059430305.
    date published: 2026-07-08T03:22:41Z
  audio: Die lustige Witwe / Act I: "So kommen Sie! 's ist niemand hier!"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.294
    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: 0.351
    additional property: Energy
      type: PropertyValue
      value: 0.107
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.97
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.107
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.249
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.467
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Die lustige Witwe / Act I: "Nun, Njegus, haben Sie meine Botschaft überbracht?"
  type: MusicRecording
  duration: PT0M36S
  duration ms: 36840
  explicit: false
  by artist: Franz Lehár
  by artist: Bryn Terfel
  by artist: Heinz Zednik
  in album: Lehár: Die lustige Witwe
    type: MusicAlbum
    date published: 1994-01-01
  genre: opera
  isrc code: DEF059430306
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:20:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4350b0dc62858a494b29b8267328b7d6f65d244ac5ebe6585f3bbc3cff33ab38
  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/DEF059430306
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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track: Die lustige Witwe / Act I: "Was hat das zu bedeuten?" - "Bitte meine Herr'n" - "Hab' in Paris mich noch nicht ganz so akklimasiert"
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  by artist: Heinz Zednik
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  by artist: Wiener Philharmoniker
  by artist: John Eliot Gardiner
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  subject of: OpenTimestamps Proof of Existence
  audio: Die lustige Witwe / Act I: "Was hat das zu bedeuten?" - "Bitte meine Herr'n" - "Hab' in Paris mich noch nicht ganz so akklimasiert"
track: Die lustige Witwe / Act I: "Camille!" - "Ja?"
track: Die lustige Witwe / Act I: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
track: Die lustige Witwe / Act II: "Ich bitte, hier jetzt zu verweilen" - "Es lebt' eine Vilja"
track: Die lustige Witwe / Act II: "Gospodina, dieses vaterländische Fest..."
track: Die lustige Witwe / Act II: "Mein tapferer Reitersmann" - "So wie die Dinge sich entwickeln"
track: Die lustige Witwe / Act II: "Ha!Ha!" - "Wir fragen, was man von uns will!"
track: Die lustige Witwe / Act III: Tanzszene
track: Die lustige Witwe / Act III: "Graf Dailowitsch.." - "Ja, wir sind es, die Grisetten"
track: Die lustige Witwe / Act III: "Aber dort bin ich zu Hause.." Lippen schweigen
track: Die lustige Witwe / Act III: "Exzellenz! Exzellenz! Diesen Fächer hat man im Pavillon gefunden!"
track: Die lustige Witwe / Act III: "Ja, das Studium der Weiber ist schwer"

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

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

Die lustige Witwe / Act I: "Was hat das zu bedeuten?" - "Bitte meine Herr'n" - "Hab' in Paris mich noch nicht ganz so akklimasiert"
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Die lustige Witwe / Act I: "Camille!" - "Ja?"
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by artist: Wiener Philharmoniker
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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 I: "Camille!" - "Ja?"
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Die lustige Witwe / Act I: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
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by artist: Wiener Philharmoniker
by artist: John Eliot Gardiner
in album: Lehár: Die lustige Witwe
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  date published: 1994-01-01
genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Die lustige Witwe / Act I: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
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Die lustige Witwe / Act II: "Ich bitte, hier jetzt zu verweilen" - "Es lebt' eine Vilja"
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by artist: Cheryl Studer
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by artist: John Eliot Gardiner
by artist: The Monteverdi Choir
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genre: opera
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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: 2026-07-21T23:29:39Z
audio: Die lustige Witwe / Act II: "Ich bitte, hier jetzt zu verweilen" - "Es lebt' eine Vilja"
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Die lustige Witwe / Act II: "Gospodina, dieses vaterländische Fest..."
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by artist: Bryn Terfel
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by artist: Bo Skovhus
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genre: opera
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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 II: "Gospodina, dieses vaterländische Fest..."
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Die lustige Witwe / Act II: "Mein tapferer Reitersmann" - "So wie die Dinge sich entwickeln"
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by artist: Wiener Philharmoniker
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Die lustige Witwe / Act III: Tanzszene
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by artist: John Eliot Gardiner
by artist: Wiener Philharmoniker
in album: Lehár: Die lustige Witwe
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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
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  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe / Act III: Tanzszene
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Die lustige Witwe / Act III: "Aber dort bin ich zu Hause.." Lippen schweigen
type: MusicRecording
duration: PT2M59S
duration ms: 179106
explicit: false
by artist: Franz Lehár
by artist: Bo Skovhus
by artist: Cheryl Studer
by artist: Wiener Philharmoniker
by artist: John Eliot Gardiner
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1994-01-01
genre: opera
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059430325
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Die lustige Witwe / Act III: "Aber dort bin ich zu Hause.." Lippen schweigen
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  additional property: Speechiness
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Die lustige Witwe / Act III: "Exzellenz! Exzellenz! Diesen Fächer hat man im Pavillon gefunden!"
type: MusicRecording
duration: PT1M24S
duration ms: 84760
explicit: false
by artist: Franz Lehár
by artist: John Eliot Gardiner
by artist: Wiener Philharmoniker
by artist: Heinz Zednik
by artist: Barbara Bonney
by artist: Bryn Terfel
by artist: Cheryl Studer
by artist: Bo Skovhus
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1994-01-01
genre: opera
isrc code: DEF059430326
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798a1ef22f4272e51521f5cd85b270189d0b8318bd2f54b3b02a95fc2984d7c9. 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/DEF059430326.
  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe / Act III: "Exzellenz! Exzellenz! Diesen Fächer hat man im Pavillon gefunden!"
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The John Eliot Gardiner Collection
type: MusicAlbum
date published: 2013-01-01
track: The Fairy Queen, Z. 629 / Act 4: Symphony
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  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
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  genre: classical
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c91f1e3266308fdc44675cbf75f816c3bd50641187d0da70e9a9a058535080. 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/DEF058139936.
    date published: 2026-07-08T03:53:27Z
  audio: The Fairy Queen, Z. 629 / Act 4: Symphony
    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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track: The Fairy Queen, Z. 629 / Act 1: Rondeau
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  by artist: John Eliot Gardiner
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    type: MusicAlbum
    date published: 2013-01-01
  popularity: 0
  genre: classical
  genre: choral
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  additional property: CopyrightID
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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: 2026-06-13T17:25:41Z
  audio: The Fairy Queen, Z. 629 / Act 1: Rondeau
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    additional property: Acousticness
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track: The Fairy Queen, Z. 629 / Act 1: Song In Two Parts: "Come, come, come, let us leave"
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  by artist: Henry Purcell
  by artist: Eiddwen Harrhy
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  by artist: John Eliot Gardiner
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    type: MusicAlbum
    date published: 2013-01-01
  popularity: 0
  genre: classical
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  additional property: CopyrightID
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    type: PropertyValue
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  additional property: OTSHash
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: The Fairy Queen, Z. 629 / Act 1: Song In Two Parts: "Come, come, come, let us leave"
track: The Fairy Queen, Z. 629 / Act 2: Prelude...Come, All Ye Songsters Of The Sky
track: The Fairy Queen, Z. 629 / Act 2: Prelude (II)
track: The Fairy Queen, Z. 629 / Act 2: Trio: "May the God of Wit inspire"
track: The Fairy Queen, Z. 629 / Act 2: A Dance Of Fairies
track: The Fairy Queen, Z. 629 / Act 2: "See, even Night herself is here"
track: The Fairy Queen, Z. 629 / Act 2: "I am come to lock all fast"
track: The Fairy Queen, Z. 629 / Act 2: "One charming night"

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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 0xee40ca018ceaae89670db66c752287e24a3e55cfbc6a4bdf7158d677ff523aed. 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/DEF058139914.
date published: 2026-07-08T03:22:41Z

The Fairy Queen, Z. 629 / Act 1: Song In Two Parts: "Come, come, come, let us leave"
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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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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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subject of: OpenTimestamps Proof of Existence
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The Fairy Queen, Z. 629 / Act 2: Trio: "May the God of Wit inspire"
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The Fairy Queen, Z. 629 / Act 2: A Dance Of Fairies
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The Fairy Queen, Z. 629 / Act 2: "See, even Night herself is here"
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The Fairy Queen, Z. 629 / Act 2: "I am come to lock all fast"
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The Fairy Queen, Z. 629 / Act 2: "One charming night"
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Beethoven: Piano Concerto No.5 In E Flat Op. 73 "Emperor"; Choral Fantasy
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Kapsberger: I pastori di Bettelemme
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track: Vespro della Beata Vergine, SV 206: VIII. Nisi Dominus a 10 - Live
track: Sì dolce è'l tormento, SV 332
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track: Madrigali guerrieri, et amorosi: Lamento della ninfa, SV 163

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OpenTimestamps Proof of Existence
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Scherzi musicali: Damigella tutta bella, SV 235
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Vespro della Beata Vergine, SV 206: VIII. Nisi Dominus a 10 - Live
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Sì dolce è'l tormento, SV 332
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Messa, salmi concertati e parte da capella, et letanie della B. V.: Laetatus sum (I), SV 198
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Scherzi musicali, cioè arie, et madrigali in stil recitativo: Zefiro torna, SV 251
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Scherzi musicali, cioè arie, et madrigali in stil recitativo: Quel sguardo sdegnosetto, SV 247
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Scherzi musicali, cioè arie, et madrigali in stil recitativo: Quel sguardo sdegnosetto, SV 247
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Madrigali guerrieri, et amorosi: Lamento della ninfa, SV 163
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by artist: Luca Tittoto
by artist: La Cetra Barockorchester Basel
by artist: Andrea Marcon
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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Baroque and More
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Schelle: Sacred Concertos & Cantatas
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Kerll, J.C.: Missa Nigra / Delectus / Laudate Pueri
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Eternal Monteverdi
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O vos amici mei carissimi
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Gasparini: Santa Maria Egiziaca
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The Beauty Of Monteverdi
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  audio: Scherzi musicali, cioè arie, et madrigali in stil recitativo: Zefiro torna, SV 251
track: Madrigali guerrieri, et amorosi: Lamento della ninfa, SV 163

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Anna Prohaska
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La Cetra Barockorchester Basel
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The Beauty Of Monteverdi
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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
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encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915b4f920dccdcbf2c1c40851579e605e2dd3713a982a6e1dd807e98a7e50cb5. 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/DEN961404040.
date published: 2026-07-08T03:20:19Z

Scherzi musicali, cioè arie, et madrigali in stil recitativo: Zefiro torna, SV 251
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Madrigali guerrieri, et amorosi: Lamento della ninfa, SV 163
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by artist: La Cetra Barockorchester Basel
by artist: Andrea Marcon
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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: Madrigali guerrieri, et amorosi: Lamento della ninfa, SV 163
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Mozart: Die Zauberflote
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date published: 1996-01-01
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  by artist: Michael Schade
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  by artist: Wolfgang Knauer
  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
  in album: Mozart: Die Zauberflote
    type: MusicAlbum
    date published: 1996-01-01
  genre: classical
  genre: classical-era
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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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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    date published: 2026-07-08T03:53:27Z
  audio: Die Zauberflöte, K.620 / Act 2: Was für eine schreckliche Nacht! (Tamino, Papageno, Sprecher, Zweiter Priester)
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track: Die Zauberflöte, K.620 / Act 1: Zu Hilfe! Zu Hilfe! (Tamino, Die drei Damen)
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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: 2026-07-08T03:20:19Z
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track: Die Zauberflöte, K.620 / Act 1: Der Vogelfänger bin ich ja (Papageno)
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  subject of: OpenTimestamps Proof of Existence
  audio: Die Zauberflöte, K.620 / Act 1: Der Vogelfänger bin ich ja (Papageno)
track: Die Zauberflöte, K.620 / Act 2: Du bist standhaft geblieben (Sprecher, Zweiter Priester, Papageno, Monostatos)
track: Die Zauberflöte, K.620 / Act 1: "O zittre nicht, mein lieber Sohn!" - "Zum Leiden bin ich auserkoren" (Königin der Nacht)
track: Die Zauberflöte, K.620 / Act 2: Der Hölle Rache kocht in meinem Herzen (Königin der Nacht)
track: Die Zauberflöte, K.620 / Act 2: Dialog "Morden soll ich?" (Pamina, Monostatos, Sarastro)
track: Die Zauberflöte, K.620 / Act 1: Hm! hm! hm! hm!
track: Die Zauberflöte, K.620 / Act 2: In diesen heil'gen Hallen (Sarastro)
track: Die Zauberflöte, K.620 / Act 1: Du feines Täubchen, nur herein (Monostatos, Pamina, Papageno)
track: Die Zauberflöte, K.620 / Act 2: Dialog "Hier seid ihr beide euch allein überlassen" (Sprecher, 2. Prister, Papageno, Tamino, Weib)
track: Die Zauberflöte, K.620 / Act 2: Seid uns zum zweiten Mal willkommen (Die drei Knaben)
track: Die Zauberflöte, K.620 / Act 1: Bei Männern, welche Liebe fühlen (Pamina, Papageno)
track: Die Zauberflöte, K.620 / Act 2: Dialog "Tamino, wollen wir nicht speisen?" (Papageno, Pamina)
track: Die Zauberflöte, K.620 / Act 1: Zum Ziele führt dich diese Bahn (Die drei Knaben, Tamino, Priester, Sprecher)
track: Die Zauberflöte, K.620 / Act 2: Ach, ich fühl's, es ist verschwunden (Pamina)
track: Die Zauberflöte, K.620 / Act 2: Siehst du, Tamino (Papageno)
track: Die Zauberflöte, K.620 / Act 1: Nur geschwinde! (Monostratos, Pamina, Papageno, Chor)
track: Die Zauberflöte, K.620 / Act 2: O Isis und Osiris (Chor)
track: Die Zauberflöte, K.620 / Act 2: Ein Mädchen oder Weibchen
track: Die Zauberflöte, K.620 / Act 2: Dialog "Da bin ich schon, mein Engel" (Weib, Papageno, Sprecher)
track: Die Zauberflöte, K.620 / Act 2: Bald prangt, den Morgen zu verkünden (Die drei Knaben, Pamina)
track: Die Zauberflöte, K.620 / Act 2: "Papagena! Weibchen! Täubchen!" - "Pa-pa-gena!" / "Pa- pa-geno!" (Papageno, Die drei Knaben, Papagena / Papageno, Papagena)

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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
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date published: 2026-07-13T07:53:33Z

Die Zauberflöte, K.620 / Act 1: Der Vogelfänger bin ich ja (Papageno)
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additional property: Valence (Positivity)
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Die Zauberflöte, K.620 / Act 2: Du bist standhaft geblieben (Sprecher, Zweiter Priester, Papageno, Monostatos)
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duration ms: 73373
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by artist: Robert Burt
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by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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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: 2026-07-08T08:56:20Z
audio: Die Zauberflöte, K.620 / Act 2: Du bist standhaft geblieben (Sprecher, Zweiter Priester, Papageno, Monostatos)
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Die Zauberflöte, K.620 / Act 1: "O zittre nicht, mein lieber Sohn!" - "Zum Leiden bin ich auserkoren" (Königin der Nacht)
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duration: PT4M29S
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by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
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genre: classical
genre: classical-era
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T13:25:45Z
audio: Die Zauberflöte, K.620 / Act 1: "O zittre nicht, mein lieber Sohn!" - "Zum Leiden bin ich auserkoren" (Königin der Nacht)
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genre: classical
genre: classical-era
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617c066d4e16cf1a8f1b681a9c6eb0fa6400e5e9529cd5ba93776497cc12e22. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530831.
  date published: 2026-07-06T07:16:32Z
audio: Die Zauberflöte, K.620 / Act 2: Der Hölle Rache kocht in meinem Herzen (Königin der Nacht)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.934
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.436
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.195
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.232
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.198
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: Dialog "Morden soll ich?" (Pamina, Monostatos, Sarastro)
type: MusicRecording
duration: PT1M27S
duration ms: 87973
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Christiane Oelze
by artist: Uwe Peper
by artist: Harry Peeters
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530832
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:40:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f619e24da49a6b34a86ce179f04ff8bdcabb6f45dfb525ce7e3f37ece96e076
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/DEF059530832
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 0x1f619e24da49a6b34a86ce179f04ff8bdcabb6f45dfb525ce7e3f37ece96e076. 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/DEF059530832.
  date published: 2026-07-08T03:22:41Z
audio: Die Zauberflöte, K.620 / Act 2: Dialog "Morden soll ich?" (Pamina, Monostatos, Sarastro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.325
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.584
  additional property: Energy
    type: PropertyValue
    value: 0.061
  additional property: Speechiness
    type: PropertyValue
    value: 0.416
  additional property: Acousticness
    type: PropertyValue
    value: 0.695
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.159
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.289
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 1: Hm! hm! hm! hm!
type: MusicRecording
duration: PT5M36S
duration ms: 336400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Susan Roberts
by artist: Carola Guber
by artist: Maria Jonas
by artist: Michael Schade
by artist: Gerald Finley
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530810
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:30:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x456935b487234ecc04525186828cb9ded9795b153cbec345bf77e5335f2f01d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957061
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530810
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T21:21:54Z
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 0x456935b487234ecc04525186828cb9ded9795b153cbec345bf77e5335f2f01d0. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:21:54Z), 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/DEF059530810.
  date published: 2026-07-21T21:21:54Z
audio: Die Zauberflöte, K.620 / Act 1: Hm! hm! hm! hm!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.677
  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: 0.419
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.184
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.237
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.093
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: In diesen heil'gen Hallen (Sarastro)
type: MusicRecording
duration: PT2M51S
duration ms: 171560
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Harry Peeters
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530833
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:51:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc84befad75e7e3c16d94f7e5e7ad68baf661c848ecc5fe9572cf6a33a5c0aba6
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/DEF059530833
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 0xc84befad75e7e3c16d94f7e5e7ad68baf661c848ecc5fe9572cf6a33a5c0aba6. 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/DEF059530833.
  date published: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, K.620 / Act 2: In diesen heil'gen Hallen (Sarastro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.842
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.224
  additional property: Energy
    type: PropertyValue
    value: 0.143
  additional property: Speechiness
    type: PropertyValue
    value: 0.125
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.033
  additional property: Liveness
    type: PropertyValue
    value: 0.373
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.276
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.66
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 1: Du feines Täubchen, nur herein (Monostatos, Pamina, Papageno)
type: MusicRecording
duration: PT1M43S
duration ms: 103000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Uwe Peper
by artist: Christiane Oelze
by artist: Gerald Finley
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530811
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:02:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d7c87402c01acbe516391f124a2e99f4ec0eb61b11b3232b64f49f9572ab858
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957011
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957011
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530811
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T08:25:35Z
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 0x2d7c87402c01acbe516391f124a2e99f4ec0eb61b11b3232b64f49f9572ab858. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DEF059530811.
  date published: 2026-07-07T08:25:35Z
audio: Die Zauberflöte, K.620 / Act 1: Du feines Täubchen, nur herein (Monostatos, Pamina, Papageno)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.752
  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: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.223
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.223
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.248
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: Dialog "Hier seid ihr beide euch allein überlassen" (Sprecher, 2. Prister, Papageno, Tamino, Weib)
type: MusicRecording
duration: PT3M8S
duration ms: 188240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Detlef Roth
by artist: Robert Johnston
by artist: Gerald Finley
by artist: Robert Burt
by artist: Wolfgang Knauer
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530834
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:10:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefc7996084b2b09e57fd95c225aefd13290a8a8f33fd5bb3d5ef8fb4ded31dfb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530834
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc7996084b2b09e57fd95c225aefd13290a8a8f33fd5bb3d5ef8fb4ded31dfb. 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/DEF059530834.
  date published: 2026-07-08T08:56:20Z
audio: Die Zauberflöte, K.620 / Act 2: Dialog "Hier seid ihr beide euch allein überlassen" (Sprecher, 2. Prister, Papageno, Tamino, Weib)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.599
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.019
  additional property: Speechiness
    type: PropertyValue
    value: 0.347
  additional property: Acousticness
    type: PropertyValue
    value: 0.2
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.301
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.57
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: Seid uns zum zweiten Mal willkommen (Die drei Knaben)
type: MusicRecording
duration: PT1M24S
duration ms: 84693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Florian Wöller
by artist: Andreas Dieterich
by artist: Jan Andreas Mendel
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530835
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:02:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ab4a36b9cd68baf0481a8f44f5cc3bd73963aa60f0638e4d1bf1dffac2a8654
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/DEF059530835
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 0x9ab4a36b9cd68baf0481a8f44f5cc3bd73963aa60f0638e4d1bf1dffac2a8654. 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/DEF059530835.
  date published: 2026-07-08T03:22:41Z
audio: Die Zauberflöte, K.620 / Act 2: Seid uns zum zweiten Mal willkommen (Die drei Knaben)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.734
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.423
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.283
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.908
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Zauberflöte, K.620 / Act 1: Bei Männern, welche Liebe fühlen (Pamina, Papageno)
type: MusicRecording
duration: PT3M4S
duration ms: 184506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gerald Finley
by artist: Christiane Oelze
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530813
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:50:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa58dd4737cc0d3a901b328873580f73ccc61675f89f32f6f7ae13113bf753307
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/DEF059530813
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 0xa58dd4737cc0d3a901b328873580f73ccc61675f89f32f6f7ae13113bf753307. 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/DEF059530813.
  date published: 2026-07-08T03:53:27Z
audio: Die Zauberflöte, K.620 / Act 1: Bei Männern, welche Liebe fühlen (Pamina, Papageno)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.754
  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: 0.374
  additional property: Energy
    type: PropertyValue
    value: 0.015
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.196
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.943
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: Dialog "Tamino, wollen wir nicht speisen?" (Papageno, Pamina)
type: MusicRecording
duration: PT1M21S
duration ms: 81400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gerald Finley
by artist: Christiane Oelze
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530836
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:22:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa535e03a6fee657a9227f90f69f6d02e241e30649e802ad41d1e320f06c8bb8c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530836
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa535e03a6fee657a9227f90f69f6d02e241e30649e802ad41d1e320f06c8bb8c. 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/DEF059530836.
  date published: 2026-07-08T08:56:20Z
audio: Die Zauberflöte, K.620 / Act 2: Dialog "Tamino, wollen wir nicht speisen?" (Papageno, Pamina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.475
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.338
  additional property: Energy
    type: PropertyValue
    value: 0.01
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.337
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.111
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.096
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 1: Zum Ziele führt dich diese Bahn (Die drei Knaben, Tamino, Priester, Sprecher)
type: MusicRecording
duration: PT11M34S
duration ms: 694000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Detlef Roth
by artist: Michael Schade
by artist: Robert Johnston
by artist: Andreas Dieterich
by artist: Jan Andreas Mendel
by artist: Florian Wöller
by artist: The Monteverdi Choir
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530814
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:17:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x998e5de9cdc94770f5d2dd778744cc0b5fbb733e0dbf9bc38cd9a462c16a49e2
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/DEF059530814
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 0x998e5de9cdc94770f5d2dd778744cc0b5fbb733e0dbf9bc38cd9a462c16a49e2. 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/DEF059530814.
  date published: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, K.620 / Act 1: Zum Ziele führt dich diese Bahn (Die drei Knaben, Tamino, Priester, Sprecher)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.514
  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: 0.368
  additional property: Energy
    type: PropertyValue
    value: 0.036
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.489
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.069
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.021
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: Ach, ich fühl's, es ist verschwunden (Pamina)
type: MusicRecording
duration: PT3M44S
duration ms: 224000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Christiane Oelze
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530837
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0663aacf357e2846c3b9beb9278e7a492faa0e91d4819310fcb6bd57952ac7fe
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/DEF059530837
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 0x0663aacf357e2846c3b9beb9278e7a492faa0e91d4819310fcb6bd57952ac7fe. 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/DEF059530837.
  date published: 2026-07-08T03:53:27Z
audio: Die Zauberflöte, K.620 / Act 2: Ach, ich fühl's, es ist verschwunden (Pamina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.485
  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: 0.16
  additional property: Energy
    type: PropertyValue
    value: 0.026
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.279
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.458
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Zauberflöte, K.620 / Act 2: Siehst du, Tamino (Papageno)
type: MusicRecording
duration: PT1M6S
duration ms: 66666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gerald Finley
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530838
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:37:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83a07683433a8c65ab705b2cf6833d8ae9b0da468c76b74db81f06ac9cc672d4
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/DEF059530838
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 0x83a07683433a8c65ab705b2cf6833d8ae9b0da468c76b74db81f06ac9cc672d4. 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/DEF059530838.
  date published: 2026-07-08T03:53:27Z
audio: Die Zauberflöte, K.620 / Act 2: Siehst du, Tamino (Papageno)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.909
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.494
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.137
  additional property: Acousticness
    type: PropertyValue
    value: 0.822
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.629
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.179
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.774
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Zauberflöte, K.620 / Act 1: Nur geschwinde! (Monostratos, Pamina, Papageno, Chor)
type: MusicRecording
duration: PT2M56S
duration ms: 176200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Uwe Peper
by artist: Christiane Oelze
by artist: Gerald Finley
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530816
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:37:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa82723930e7db03e2787aecb546dbdc280a05b1996c4c6c068df2e147339544e
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/DEF059530816
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 0xa82723930e7db03e2787aecb546dbdc280a05b1996c4c6c068df2e147339544e. 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/DEF059530816.
  date published: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, K.620 / Act 1: Nur geschwinde! (Monostratos, Pamina, Papageno, Chor)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.542
  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: 0.373
  additional property: Energy
    type: PropertyValue
    value: 0.08
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.859
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.263
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.11
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.021
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zauberflöte, K.620 / Act 2: O Isis und Osiris (Chor)
type: MusicRecording
duration: PT2M42S
duration ms: 162666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: The Monteverdi Choir
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530839
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:13:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a216fb59a02f2b152d74753fc54db80067ead7193c2acadcafec6c43d640030
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530839
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a216fb59a02f2b152d74753fc54db80067ead7193c2acadcafec6c43d640030. 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/DEF059530839.
  date published: 2026-07-08T08:56:20Z
audio: Die Zauberflöte, K.620 / Act 2: O Isis und Osiris (Chor)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.098
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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Die Zauberflöte, K.620 / Act 2: Ein Mädchen oder Weibchen
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by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Die Zauberflöte, K.620 / Act 2: Ein Mädchen oder Weibchen
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Die Zauberflöte, K.620 / Act 2: Bald prangt, den Morgen zu verkünden (Die drei Knaben, Pamina)
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duration: PT1M39S
duration ms: 99240
explicit: false
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by artist: Florian Wöller
by artist: Andreas Dieterich
by artist: Jan Andreas Mendel
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEF059530845
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059530845
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Die Zauberflöte, K.620 / Act 2: Bald prangt, den Morgen zu verkünden (Die drei Knaben, Pamina)
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Monteverdi: L'incoronazione di Poppea (Complete)
type: MusicAlbum
date published: 1996-01-01
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  explicit: false
  by artist: Claudio Monteverdi
  by artist: Anne Sofie von Otter
  by artist: Catherine Bott
  by artist: Marinella Pennicchi
  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
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  genre: early-music
  genre: baroque
  genre: italian-baroque
  genre: italian-renaissance
  genre: madrigal
  genre: renaissance
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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: 2026-07-02T03:55:08Z
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track: L'incoronazione di Poppea, SV 308 / Act I: E pur'io torno qui, qual linea al centro
  type: MusicRecording
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  by artist: Michael Chance
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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: 2026-07-22T12:33:25Z
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track: L'incoronazione di Poppea, SV 308 / Act I: Chi parla? chi parla?
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  by artist: Mark Tucker
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  subject of: OpenTimestamps Proof of Existence
  audio: L'incoronazione di Poppea, SV 308 / Act I: Chi parla? chi parla?
track: L'incoronazione di Poppea, SV 308 / Act I: Pur sempre di Poppea
track: L'incoronazione di Poppea, SV 308 / Act I: Signor, deh, non partire!
track: L'incoronazione di Poppea, SV 308 / Act II: Solitudine amata
track: L'incoronazione di Poppea, SV 308 / Act III: No, no, questa sentenza
track: L'incoronazione di Poppea, SV 308 / Act I: Speranza, tu mi vai
track: L'incoronazione di Poppea, SV 308 / Act III: Oggi sarà Poppea
track: L'incoronazione di Poppea, SV 308 / Act I: "Ottavia, Ottavia!"
track: L'incoronazione di Poppea, SV 308 / Act II: Sento un certo non so che
track: L'incoronazione di Poppea, SV 308 / Act III: A Dio, Roma! a Dio, patria! amici, a Dio!
track: L'incoronazione di Poppea, SV 308 / Act II: Son rubini amorosi
track: L'incoronazione di Poppea, SV 308 / Act III: "Pur ti miro"
track: L'incoronazione di Poppea, SV 308 / Act I: Seneca, io miro in cielo infausti rai
track: L'incoronazione di Poppea, SV 308 / Act I: Come dolci, Signor, come soavi
track: L'incoronazione di Poppea, SV 308 / Act II: Eccomi trasformato
track: L'incoronazione di Poppea, SV 308 / Act II: Forsennato, scellerato
track: L'incoronazione di Poppea, SV 308 / Act II: Dunque amor così comincia ?
track: L'incoronazione di Poppea, SV 308 / Act I: Madama, con tua pace
track: L'incoronazione di Poppea, SV 308 / Act III: Scendiam, scendiam
track: L'incoronazione di Poppea, SV 308 / Act II: "Felice cor mio" - "Nutrice, quanto pagheresti" - "Il Giorno femminil"

Michael Chance
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Nigel Robson
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English Baroque Soloists
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John Eliot Gardiner
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Monteverdi: L'incoronazione di Poppea (Complete)
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date published: 1996-01-01

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CopyrightRegisteredAt
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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
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date published: 2026-07-08T03:20:19Z

L'incoronazione di Poppea, SV 308 / Act I: Chi parla? chi parla?
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L'incoronazione di Poppea, SV 308 / Act I: Pur sempre di Poppea
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duration: PT5M7S
duration ms: 307440
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by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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genre: classical
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genre: italian-baroque
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genre: madrigal
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additional property: OTSBitcoinBlockVerifyURL
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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: L'incoronazione di Poppea, SV 308 / Act I: Pur sempre di Poppea
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L'incoronazione di Poppea, SV 308 / Act I: Signor, deh, non partire!
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by artist: English Baroque Soloists
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  date published: 2026-07-02T03:55:08Z
audio: L'incoronazione di Poppea, SV 308 / Act I: Signor, deh, non partire!
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L'incoronazione di Poppea, SV 308 / Act II: Solitudine amata
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by artist: Julian Clarkson
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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
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L'incoronazione di Poppea, SV 308 / Act III: No, no, questa sentenza
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by artist: Michael Chance
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by artist: Dana Hanchard
by artist: Julian Clarkson
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: L'incoronazione di Poppea, SV 308 / Act III: No, no, questa sentenza
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L'incoronazione di Poppea, SV 308 / Act I: Speranza, tu mi vai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:02:43Z
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L'incoronazione di Poppea, SV 308 / Act III: Oggi sarà Poppea
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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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L'incoronazione di Poppea, SV 308 / Act I: "Ottavia, Ottavia!"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:04:01Z
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L'incoronazione di Poppea, SV 308 / Act III: A Dio, Roma! a Dio, patria! amici, a Dio!
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genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331338
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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059331338
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 0x6eba2a01c5bd9e203d1073885e49dad7e0378abe53a5253260942c87c0529fb8. 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/DEF059331338.
  date published: 2026-07-08T03:20:19Z
audio: L'incoronazione di Poppea, SV 308 / Act III: A Dio, Roma! a Dio, patria! amici, a Dio!
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    value: 133.594
  additional property: Musical Key
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    value: 9
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.381
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.082
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
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L'incoronazione di Poppea, SV 308 / Act II: Son rubini amorosi
type: MusicRecording
duration: PT3M58S
duration ms: 238000
explicit: false
by artist: Claudio Monteverdi
by artist: Dana Hanchard
by artist: Mark Tucker
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331323
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:36:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb49a07f5cce89749c6ddede8e8480f9aea9fb0aac89cbcaee02c6aafd2854bc3
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/DEF059331323
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 0xb49a07f5cce89749c6ddede8e8480f9aea9fb0aac89cbcaee02c6aafd2854bc3. 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/DEF059331323.
  date published: 2026-07-08T03:53:27Z
audio: L'incoronazione di Poppea, SV 308 / Act II: Son rubini amorosi
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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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: 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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L'incoronazione di Poppea, SV 308 / Act III: "Pur ti miro"
type: MusicRecording
duration: PT4M11S
duration ms: 251000
explicit: false
by artist: Claudio Monteverdi
by artist: Sylvia McNair
by artist: Dana Hanchard
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331341
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:04:33+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x053a6adee11424df032fb96b74052ff66551b617b77676929f2b5ca024167da2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953528
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/DEF059331341
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 0x053a6adee11424df032fb96b74052ff66551b617b77676929f2b5ca024167da2. 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/DEF059331341.
  date published: 2026-06-13T15:41:10Z
audio: L'incoronazione di Poppea, SV 308 / Act III: "Pur ti miro"
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.293
  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
    value: 0
  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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L'incoronazione di Poppea, SV 308 / Act I: Seneca, io miro in cielo infausti rai
type: MusicRecording
duration: PT1M43S
duration ms: 103306
explicit: false
by artist: Claudio Monteverdi
by artist: Catherine Bott
by artist: Francesco Ellero D'Artegna
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331311
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:34:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e9f8af1255759266813303d60851a510403da7ab1b1341d0581be1643aa924c
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/DEF059331311
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 0x4e9f8af1255759266813303d60851a510403da7ab1b1341d0581be1643aa924c. 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/DEF059331311.
  date published: 2026-07-08T03:20:19Z
audio: L'incoronazione di Poppea, SV 308 / Act I: Seneca, io miro in cielo infausti rai
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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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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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    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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  additional property: Mode Name
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L'incoronazione di Poppea, SV 308 / Act I: Come dolci, Signor, come soavi
type: MusicRecording
duration: PT9M10S
duration ms: 550066
explicit: false
by artist: Claudio Monteverdi
by artist: Sylvia McNair
by artist: Dana Hanchard
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331313
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:47:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x091f4615d6b6b8d3537fa240013930ccb100d48fc8a918679fa253bb0ba45ee0
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/DEF059331313
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 0x091f4615d6b6b8d3537fa240013930ccb100d48fc8a918679fa253bb0ba45ee0. 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/DEF059331313.
  date published: 2026-07-08T03:22:41Z
audio: L'incoronazione di Poppea, SV 308 / Act I: Come dolci, Signor, come soavi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.79
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.365
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.107
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.933
  additional property: Key Name
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    value: C
  additional property: Mode Name
    type: PropertyValue
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L'incoronazione di Poppea, SV 308 / Act II: Eccomi trasformato
type: MusicRecording
duration: PT3M15S
duration ms: 195800
explicit: false
by artist: Claudio Monteverdi
by artist: Michael Chance
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331330
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:17:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39e6d930979e57e8424b36a48dec813fc0f31a55c76a05b86a96e19181630bf8
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/DEF059331330
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 0x39e6d930979e57e8424b36a48dec813fc0f31a55c76a05b86a96e19181630bf8. 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/DEF059331330.
  date published: 2026-07-08T03:22:41Z
audio: L'incoronazione di Poppea, SV 308 / Act II: Eccomi trasformato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.547
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.317
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.083
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.943
  additional property: Key Name
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  additional property: Mode Name
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L'incoronazione di Poppea, SV 308 / Act II: Forsennato, scellerato
type: MusicRecording
duration: PT1M56S
duration ms: 116733
explicit: false
by artist: Claudio Monteverdi
by artist: Marinella Pennicchi
by artist: Sylvia McNair
by artist: Bernarda Fink
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Monteverdi: L'incoronazione di Poppea (Complete)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: DEF059331331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:36:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xccd7ad2c9ce84f49b6fc091a337db492bbee960b3aacc8450a968ed361c694b6
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/DEF059331331
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
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  date published: 2026-07-08T03:20:19Z
audio: L'incoronazione di Poppea, SV 308 / Act II: Forsennato, scellerato
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Schein: Israelsbrünnlein
type: MusicAlbum
date published: 2004

Monteverdi: Vespro della Beata Vergine
type: MusicAlbum
date published: 2011-06-07

Christmas Masterworks
type: MusicAlbum
date published: 2024-12-05
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  by artist: Orpheus 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: 2026-06-13T12:47:07Z
  audio: Herz und Mund und Tat und Leben, Cantata BWV 147: No. 10 Jesu, Joy of Man's Desiring (Arr. by Guillermo Figueroa)
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    additional property: Valence (Positivity)
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Victorian Christmas
type: MusicAlbum
date published: 2016-01-01

Mozart: Le Nozze di Figaro
type: MusicAlbum
date published: 1994-01-01
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  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
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  genre: classical
  genre: classical-era
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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 0xc762929c79a3c174abbec318f09f7a9e21f86b96de8224c9da82b7dbc9366d60. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059330301.
    date published: 2026-07-22T11:35:32Z
  audio: Le nozze di Figaro, K. 492: Overture - Live
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track: Le nozze di Figaro, K.492 / Act 2: "Tutto è come io lasciai"
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  by artist: Wolfgang Amadeus Mozart
  by artist: Rod Gilfry
  by artist: Hillevi Martinpelto
  by artist: English Baroque Soloists
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    date published: 1994-01-01
  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: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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track: Le nozze di Figaro, K.492 / Act 2: Susanna, son morta (Contessa, Susanna, Conte)
track: Le nozze di Figaro, K.492 / Act 1: Bravo, Signor padrone! (Figaro)
track: Le nozze di Figaro, K.492 / Act 1: "Ed aspettaste il giorno fissato a le sue nozze"
track: Le nozze di Figaro, K.492 / Act 1: "La vendetta, oh, la vendetta"
track: Le nozze di Figaro, K.492 / Act 1: "Tutto anchor no ho perso"
track: Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo" - "Via, fatti core"
track: Le nozze di Figaro, K.492 / Act 1: "Via resti servita, madama brillante"
track: Le nozze di Figaro, K.492 / Act 3: "Crudel! perchè finora" - Live
track: Le nozze di Figaro, K.492 / Act 1: "Non so più cosa son, cosa faccio"
track: Le nozze di Figaro, K.492 / Act 3: "Vedro mentr'io sospiro"
track: Le nozze di Figaro, K.492 / Act 1: Giovani liete, fiori spargete (Coro) (I)
track: Le nozze di Figaro, K.492 / Act 1: Cos'è questa commedia? (Conte, Figaro, Susanna)
track: Le nozze di Figaro, K.492 / Act 1: "Non più andrai"
track: Le nozze di Figaro, K.492 / Act 2: Vieni, cara Susanna (Contessa, Susanna, Cherubino)
track: Le nozze di Figaro, K.492 / Act 2: "Aprite, presto, aprite"
track: Le nozze di Figaro, K.492 / Act 2: Oh guarda il demonietto! (Susanna)
track: Le nozze di Figaro, K.492 / Act 3: "Andiamo, andiam, bel paggio"

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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 0x9f0383acab787b80bff47aab9375fc7759b8722ad8bbd23ce0dd295ff85fac68. 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/DEF059330305.
date published: 2026-07-08T03:20:19Z

Le nozze di Figaro, K.492 / Act 1: "Se a caso Madama la notte ti chiama"
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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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Le nozze di Figaro, K.492 / Act 2: Susanna, son morta (Contessa, Susanna, Conte)
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by artist: English Baroque Soloists
by artist: John Eliot Gardiner
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Le nozze di Figaro, K.492 / Act 1: Bravo, Signor padrone! (Figaro)
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by artist: John Eliot Gardiner
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genre: classical
genre: classical-era
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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
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  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 1: Bravo, Signor padrone! (Figaro)
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 164.823
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.298
  additional property: Energy
    type: PropertyValue
    value: 0.012
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.663
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.263
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.331
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: "Ed aspettaste il giorno fissato a le sue nozze"
type: MusicRecording
duration: PT1M3S
duration ms: 63840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carlos Feller
by artist: Susan McCulloch
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330330
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:41:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e429be475877bf9a5301aabfe60a3f66e1739454f81bc8b55a01886e34dda59
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/DEF059330330
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 0x1e429be475877bf9a5301aabfe60a3f66e1739454f81bc8b55a01886e34dda59. 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/DEF059330330.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 1: "Ed aspettaste il giorno fissato a le sue nozze"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.856
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.576
  additional property: Energy
    type: PropertyValue
    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0.381
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.784
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.644
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le nozze di Figaro, K.492 / Act 1: "La vendetta, oh, la vendetta"
type: MusicRecording
duration: PT3M2S
duration ms: 182093
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carlos Feller
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330311
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:53:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x926b96efb8e8f7574e561e5c212825f2551db9ab14cdb4ec04e5a72977ddeed8
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/DEF059330311
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 0x926b96efb8e8f7574e561e5c212825f2551db9ab14cdb4ec04e5a72977ddeed8. 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/DEF059330311.
  date published: 2026-07-08T03:20:19Z
audio: Le nozze di Figaro, K.492 / Act 1: "La vendetta, oh, la vendetta"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.717
  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: 0.387
  additional property: Energy
    type: PropertyValue
    value: 0.096
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.35
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.825
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: "Tutto anchor no ho perso"
type: MusicRecording
duration: PT0M44S
duration ms: 44266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Susan McCulloch
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:45:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d1bdf8e411b6f9f0e70dd6fa699aa844cdb58353afd79fd63d0a17ea21d8552
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/DEF059330331
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 0x9d1bdf8e411b6f9f0e70dd6fa699aa844cdb58353afd79fd63d0a17ea21d8552. 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/DEF059330331.
  date published: 2026-07-08T03:22:41Z
audio: Le nozze di Figaro, K.492 / Act 1: "Tutto anchor no ho perso"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.463
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.55
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.136
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.364
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.307
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.898
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo" - "Via, fatti core"
type: MusicRecording
duration: PT2M39S
duration ms: 159866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rod Gilfry
by artist: Alison Hagley
by artist: Hillevi Martinpelto
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330357
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:23:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf14eeb22a23e6c3408ef9d1164e4978bf642ab46bcdd911e5dcc49c001224eb1
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/DEF059330357
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 0xf14eeb22a23e6c3408ef9d1164e4978bf642ab46bcdd911e5dcc49c001224eb1. 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/DEF059330357.
  date published: 2026-07-08T03:22:41Z
audio: Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo" - "Via, fatti core"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.415
  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: 0.5
  additional property: Energy
    type: PropertyValue
    value: 0.024
  additional property: Speechiness
    type: PropertyValue
    value: 0.124
  additional property: Acousticness
    type: PropertyValue
    value: 0.905
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.34
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.133
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.733
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: "Via resti servita, madama brillante"
type: MusicRecording
duration: PT2M9S
duration ms: 129906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Susan McCulloch
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330332
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:07:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e239aaafdeb822c0a7aea528fe247663112e85c4efe670ce90be68ec1dd2275
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/DEF059330332
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T05:36:21Z
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 0x7e239aaafdeb822c0a7aea528fe247663112e85c4efe670ce90be68ec1dd2275. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:36:21Z), 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/DEF059330332.
  date published: 2026-07-22T05:36:21Z
audio: Le nozze di Figaro, K.492 / Act 1: "Via resti servita, madama brillante"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.803
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.46
  additional property: Energy
    type: PropertyValue
    value: 0.162
  additional property: Speechiness
    type: PropertyValue
    value: 0.115
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.223
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.275
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.22
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le nozze di Figaro, K.492 / Act 3: "Crudel! perchè finora" - Live
type: MusicRecording
duration: PT2M24S
duration ms: 144293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Rod Gilfry
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330318
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:54:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bec094a9bd9f20c276ddf7c8845e3ef7884497c0db3c4c519e899727dcc1d57
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/DEF059330318
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 0x2bec094a9bd9f20c276ddf7c8845e3ef7884497c0db3c4c519e899727dcc1d57. 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/DEF059330318.
  date published: 2026-07-08T03:22:41Z
audio: Le nozze di Figaro, K.492 / Act 3: "Crudel! perchè finora" - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.161
  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: 0.369
  additional property: Energy
    type: PropertyValue
    value: 0.089
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.285
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.356
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: "Non so più cosa son, cosa faccio"
type: MusicRecording
duration: PT2M31S
duration ms: 151333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Pamela Helen Stephen
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330312
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:47:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83eba8ea03fb27f1e215cfcd6c8f7fd975bd5d4d844542ba4ea414870f94829f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957064
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059330312
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eba8ea03fb27f1e215cfcd6c8f7fd975bd5d4d844542ba4ea414870f94829f. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059330312.
  date published: 2026-07-07T16:43:08Z
audio: Le nozze di Figaro, K.492 / Act 1: "Non so più cosa son, cosa faccio"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.522
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.365
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.161
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.868
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 3: "Vedro mentr'io sospiro"
type: MusicRecording
duration: PT3M15S
duration ms: 195933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rod Gilfry
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330360
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:08:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9e87a1cedcbdff0c5542d39c098615f54d3ac667423595a5a5d25d92845a44f
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/DEF059330360
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 0xf9e87a1cedcbdff0c5542d39c098615f54d3ac667423595a5a5d25d92845a44f. 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/DEF059330360.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 3: "Vedro mentr'io sospiro"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.756
  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: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.109
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.309
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.295
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.52
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: Giovani liete, fiori spargete (Coro) (I)
type: MusicRecording
duration: PT1M9S
duration ms: 69840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: The Monteverdi Choir
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330313
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:25:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7860bade1732019e91a1aaed31e9c90995b0f96a1d9deba1c51101c3e8b925f5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059330313
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7860bade1732019e91a1aaed31e9c90995b0f96a1d9deba1c51101c3e8b925f5. 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/DEF059330313.
  date published: 2026-07-08T08:56:20Z
audio: Le nozze di Figaro, K.492 / Act 1: Giovani liete, fiori spargete (Coro) (I)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.47
  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: 0.291
  additional property: Energy
    type: PropertyValue
    value: 0.053
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.235
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.188
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.785
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 1: Cos'è questa commedia? (Conte, Figaro, Susanna)
type: MusicRecording
duration: PT1M26S
duration ms: 86026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Rod Gilfry
by artist: Bryn Terfel
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330337
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:17:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b0bc325ae22cadba41eab2f6abf2298591b649cd62d59064629fe06cdd025cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059330337
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0bc325ae22cadba41eab2f6abf2298591b649cd62d59064629fe06cdd025cd. 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/DEF059330337.
  date published: 2026-07-08T08:56:20Z
audio: Le nozze di Figaro, K.492 / Act 1: Cos'è questa commedia? (Conte, Figaro, Susanna)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.927
  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: 0.579
  additional property: Energy
    type: PropertyValue
    value: 0.079
  additional property: Speechiness
    type: PropertyValue
    value: 0.36
  additional property: Acousticness
    type: PropertyValue
    value: 0.898
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.325
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.718
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le nozze di Figaro, K.492 / Act 1: "Non più andrai"
type: MusicRecording
duration: PT3M56S
duration ms: 236866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bryn Terfel
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330306
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b840e235f9f4e4ae8c7c73f0314db9d9440c5785d44486bf4384223037d54b2
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/DEF059330306
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T16:14:21Z
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 0x6b840e235f9f4e4ae8c7c73f0314db9d9440c5785d44486bf4384223037d54b2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:14:21Z), 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/DEF059330306.
  date published: 2026-07-21T16:14:21Z
audio: Le nozze di Figaro, K.492 / Act 1: "Non più andrai"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.832
  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: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.282
  additional property: Speechiness
    type: PropertyValue
    value: 0.442
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.019
  additional property: Liveness
    type: PropertyValue
    value: 0.738
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.371
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.623
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 2: Vieni, cara Susanna (Contessa, Susanna, Cherubino)
type: MusicRecording
duration: PT3M26S
duration ms: 206226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Hillevi Martinpelto
by artist: Bryn Terfel
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:23:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93365d9196b47c2a02fb73e14e0469fd901d5788dcc8e0b99e0cbcacfa3bf312
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/DEF059330340
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 0x93365d9196b47c2a02fb73e14e0469fd901d5788dcc8e0b99e0cbcacfa3bf312. 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/DEF059330340.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 2: Vieni, cara Susanna (Contessa, Susanna, Cherubino)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.402
  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: 0.553
  additional property: Energy
    type: PropertyValue
    value: 0.071
  additional property: Speechiness
    type: PropertyValue
    value: 0.354
  additional property: Acousticness
    type: PropertyValue
    value: 0.869
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.319
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.606
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K.492 / Act 2: "Aprite, presto, aprite"
type: MusicRecording
duration: PT1M12S
duration ms: 72506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: Pamela Helen Stephen
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330347
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:50:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x048debf87b2e797d96220709730670244cb6be2f439d0e15dfc23067330bb921
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/DEF059330347
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 0x048debf87b2e797d96220709730670244cb6be2f439d0e15dfc23067330bb921. 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/DEF059330347.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 2: "Aprite, presto, aprite"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.568
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.575
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.148
  additional property: Acousticness
    type: PropertyValue
    value: 0.877
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.796
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.757
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.728
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Le nozze di Figaro, K.492 / Act 2: Oh guarda il demonietto! (Susanna)
type: MusicRecording
duration: PT0M31S
duration ms: 31600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alison Hagley
by artist: English Baroque Soloists
by artist: John Eliot Gardiner
in album: Mozart: Le Nozze di Figaro
  type: MusicAlbum
  date published: 1994-01-01
genre: classical
genre: classical-era
isrc code: DEF059330348
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd518672e2c6435f9169ff1bbf23373a44adb1b62e372672df5e1eb124f7ec7e4. 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/DEF059330348.
  date published: 2026-07-08T03:53:27Z
audio: Le nozze di Figaro, K.492 / Act 2: Oh guarda il demonietto! (Susanna)
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  additional property: Valence (Positivity)
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Praetorius: Christmette
type: MusicAlbum
date published: 1994-01-01

The Baroque Christmas Album
type: MusicAlbum
date published: 2005-01-01
track: Messe de Minuit, H. 9: Kyrie
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  by artist: Les Musiciens du Louvre
  by artist: Marc Minkowski
  by artist: Chorus Of Les Musiciens Du Louvre
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    date published: 2005-01-01
  genre: classical
  genre: early-music
  genre: baroque
  genre: french-baroque
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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: 2026-07-08T03:22:41Z
  audio: Messe de Minuit, H. 9: Kyrie
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Time Signature
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Schumann Gold
type: MusicAlbum
date published: 2010-01-01
track: Kinderszenen, Op. 15: VII. Träumerei - Live
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  by artist: Vladimir Horowitz
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T05:09:12Z
  audio: Kinderszenen, Op. 15: VII. Träumerei - Live
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    additional property: Danceability
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track: Dichterliebe, Op. 48: I. Im wunderschönen Monat Mai
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  by artist: Fritz Wunderlich
  by artist: Hubert Giesen
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    type: MusicAlbum
    date published: 2010-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a743935eb8b88cb4de2f257eb28e009b17296695e6b8024e6466104858925e5. 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/DEF056530801.
    date published: 2026-07-02T03:55:08Z
  audio: Dichterliebe, Op. 48: I. Im wunderschönen Monat Mai
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track: Dichterliebe, Op. 48: III. Die Rose, die Lilie, die Taube, die Sonne
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Dichterliebe, Op. 48: VII. Ich grolle nicht

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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056530803

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 0x2d3e2e12de672fbdae3685f481be358cf2278692e1a25153a100af2180c78ef4. 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/DEF056530803.
date published: 2026-07-08T03:53:27Z

Dichterliebe, Op. 48: III. Die Rose, die Lilie, die Taube, die Sonne
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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: Mode Name
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Dichterliebe, Op. 48: VII. Ich grolle nicht
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explicit: false
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by artist: Fritz Wunderlich
by artist: Hubert Giesen
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genre: classical
genre: classical-piano
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Dichterliebe, Op. 48: VII. Ich grolle nicht
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Praetorius: Mass
type: MusicAlbum
date published: 1994-01-01

Mozart: Opera Arias
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date published: 2012-01-01
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  by artist: English Baroque Soloists
  by artist: John Eliot Gardiner
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
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Schumann: Das Paradies und die Peri; Requiem für Mignon; Nachtlied
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date published: 1999-01-01
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  by artist: William Dazeley
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  by artist: The Monteverdi Choir
  by artist: Orchestre Révolutionnaire et Romantique
  by artist: John Eliot Gardiner
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
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track: Das Paradies und die Peri / Part Two: No. 10 "Die Peri tritt mit ... Gern grüßen wir"
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  genre: classical
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Das Paradies und die Peri / Part Two: No. 11 "Ihr erstes Himmelshoffen ... Hervor aus den"
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  genre: classical
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  subject of: OpenTimestamps Proof of Existence
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track: Das Paradies und die Peri / Part One: No. 2 "Wie glücklich sie wandeln, die sel'gen Geister"
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track: Das Paradies und die Peri / Part One: No. 8 "Weh, weh, weh, er fehlte das Ziel"
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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 0x4187acbd794f6645b57fd1195bf024bc3156a1e0e2b8fbdc77dd267d4d3a3f62. 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/DEF059730711.
date published: 2026-07-08T03:53:27Z

Das Paradies und die Peri / Part Two: No. 11 "Ihr erstes Himmelshoffen ... Hervor aus den"
type: AudioObject
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Das Paradies und die Peri / Part One: No. 2 "Wie glücklich sie wandeln, die sel'gen Geister"
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duration: PT2M14S
duration ms: 134106
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by artist: Robert Schumann
by artist: Barbara Bonney
by artist: Orchestre Révolutionnaire et Romantique
by artist: John Eliot Gardiner
in album: Schumann: Das Paradies und die Peri; Requiem für Mignon; Nachtlied
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Das Paradies und die Peri / Part One: No. 2 "Wie glücklich sie wandeln, die sel'gen Geister"
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Das Paradies und die Peri / Part Two: No. 17 "Schlaf nun und ruhe in Träumen voll Duft"
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by artist: Robert Schumann
by artist: Barbara Bonney
by artist: The Monteverdi Choir
by artist: Orchestre Révolutionnaire et Romantique
by artist: John Eliot Gardiner
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Das Paradies und die Peri / Part Two: No. 17 "Schlaf nun und ruhe in Träumen voll Duft"
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by artist: The Monteverdi Choir
by artist: Orchestre Révolutionnaire et Romantique
by artist: John Eliot Gardiner
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  date published: 1999-01-01
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Das Paradies und die Peri / Part One: No. 8 "Weh, weh, weh, er fehlte das Ziel"
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duration: PT6M50S
duration ms: 410333
explicit: false
by artist: Robert Schumann
by artist: Barbara Bonney
by artist: Alexandra Coku
by artist: Bernarda Fink
by artist: Christoph Prégardien
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by artist: The Monteverdi Choir
by artist: Orchestre Révolutionnaire et Romantique
by artist: John Eliot Gardiner
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audio: Das Paradies und die Peri / Part One: No. 9 "Die Peri sah das Mal ...Sei dies,mein Geschenk"
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In dulci jubilo. Eine sächsische Weihnacht der Spätrenaissance
type: MusicAlbum
date published: 2009-06-17

Mozart: Le Nozze di Figaro (Highlights)
type: MusicAlbum
date published: 1994-01-01

Schumann: Complete Symphonies; Das Paradies und die Peri
type: MusicAlbum
date published: 2014-01-01