Franz Lehár
type: MusicGroup
genre: opera
description: thumb|Lehár, likely sometime between 1915 and 1920 center|frameless|upright|alt=signature written in ink in a flowing script Franz Lehár ( ; ; 30 April 1870 – 24 October 1948) was an Austro-Hungaria
popularity: 42
followers: 11654
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album: European Light Music Classics
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  date published: 1998-01-01
  track: Tritsch-Tratsch Polka, Op. 214
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      date published: 1998-01-01
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: Tritsch-Tratsch Polka, Op. 214
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  track: Swedish Polka "Roslagsvår"
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
    audio: Swedish Polka "Roslagsvår"
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  track: Marche funèbre d'une marionnette
  track: El relicario
  track: Tesoro mio!
  track: Ball-Szene
  track: Mondnacht auf der Alster
album: Franz Lehár: Das Land des Lächelns (QS)
album: Lehár: Wo die Lerche singt
album: Lehar: Paganini
album: Lehár: Paganini
album: Lehár: Das Land des Lächelns
album: Wiener Operettenarien
album: Léhar: Der Zarewitsch (Querschnitt)
album: Dein ist mein ganzes Herz: The Most Beautiful Melodies by Franz Lehar (Live)
album: Lehár: Giuditta (Live)
album: Karajan A-Z: Holst - Liszt
album: Gold and Silver
album: Lehár: Die lustige Witwe (Live)
album: The Richard Tauber Collection, Vol. 5: The Early Lehar Recordings (1924-1929)
album: A Festival of Song
album: Franz Lehár - Gold And Silver
album: Lehar, F.: Friedrike [Operetta]
album: F. Léhar, Le Pays du sourire, Orchestre Radio Symphonique de Lille, M. Cariven (dir)
album: Lehar, F.: Zigeunerliebe [Operetta]
album: Duo Praxedis: From Praxedis with Love
album: Lehár: Die Juxheirat (Live)
album: Introduction to Operetta with Franz Lehár
album: The Record of Singing, Vol. 2, Pt. 7
album: Tu che m'hai preso il cuor
album: Schon ist die Welt (Beautiful World)
album: Lehár: Schön ist die Welt
album: Die Stimme für Millionen. Wunschmelodien und Radio-raritäten, Vol. 2
album: Lehár: Die lustige Witwe
album: Lehár: Der Rastelbinder
album: Lehár: Giuditta
album: Franz Lehár: Masterpieces for Orchestra
album: Lehár: Das Fürstenkind
album: Handel: The Queen of Sheba - Bach: Brandenburg Concerto - Mozart: Jupiter Symphony - Rossini: The Barber of Seville - Grieg: Solveig's Song - Bizet: L'Arlésienne - Tchaikovsky: Waltz of the F
album: Lehár: Die Lustige Witwe
album: Lehar: Luxemburg Grófja, Cigányszerelem
album: Lehár: Operettas
album: Highlights from Franz Lehar's Merry Widow
album: An Ode to Nature - Welcome Spring
album: Classical Voices: Spring
album: Franz Lehár: Schön ist die Welt (Live)
album: Paganini
album: Lehár: Wiener Frauen (Live)
album: Lehár: Der Graf von Luxemburg
album: Die Lustige Witwe
album: Lehár: Der Graf von Luxemburg (Live)
album: Lehár: Zigeunerliebe
album: Lehár: Paganini (Live)
album: Masterpieces of Operetta: Franz Lehár Conducts Lehár, Vol. 2 (2015 Digital Remaster)
album: Masterpieces of Operetta: Franz Lehár Conducts Lehár, Vol. 1 (Remastered 2015)
album: The Lehár Dinasty - Marches
album: The Greatest Austrian Composers
album: A Garden After the Rain - Sounds & Fragrances
album: On a Summer Evening
track: DEN120206616
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track: QZK6P1917093
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track: DEN120304436
track: FRZ200010410
track: USSM11905518
track: GBF079710250
track: GBAYC1302279
track: GBAYC1302278

Die lustige Witwe, Act II: No. 10b, Valse moderato
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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  date published: 2024-08-02
popularity: 9
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: 2026-07-02T03:55:08Z
audio: Die lustige Witwe, Act II: No. 10b, Valse moderato
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Gold und Silber (Gold and Silver), Op. 79: Waltz
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duration: PT7M18S
duration ms: 438240
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by artist: Franz Lehár
by artist: Budapest Symphony Orchestra
by artist: Géza Oberfrank
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popularity: 8
genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T05:09:12Z
audio: Gold und Silber (Gold and Silver), Op. 79: Waltz
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Gold And Silver Waltz (Gold und Silber/L'or et l'argent)
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duration: PT7M6S
duration ms: 426031
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by artist: Strauss Festival Orchestra
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popularity: 9
genre: opera
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  date published: 2026-07-02T03:55:08Z
audio: Gold And Silver Waltz (Gold und Silber/L'or et l'argent)
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Die lustige Witwe (The Merry Widow) (2000 - Remaster): XIV. Lippen schweigen (Danilo/Hanna)
type: MusicRecording
duration: PT2M28S
duration ms: 148026
explicit: false
by artist: Franz Lehár
by artist: Eberhard Waechter/Elisabeth Schwarzkopf/Philharmonia Orchestra/Lovro von Matacic
by artist: Eberhard Waechter
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
popularity: 31
genre: opera
isrc code: GBAYC0001029
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
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): XIV. Lippen schweigen (Danilo/Hanna)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Lehár: Le pays du sourire, Act I: Air. "Dans l'ombre blanche des pommiers en fleurs"
type: MusicRecording
duration: PT3M46S
duration ms: 226160
explicit: false
by artist: Franz Lehár
by artist: Yvon Leenart
by artist: Michel Dens
by artist: Orchestre de l'Association des Concerts Lamoureux
in album: An Ode to Nature - Welcome Spring
  type: MusicAlbum
  date published: 2025-04-17
genre: opera
isrc code: FRZ112000020
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ112000020
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Lehár: Le pays du sourire, Act I: Air. "Dans l'ombre blanche des pommiers en fleurs"
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: 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: Mode Name
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Losonczy March, Op. 20
type: MusicRecording
duration: PT3M20S
duration ms: 200093
explicit: false
by artist: Franz Lehár
by artist: The Budapest Symphonic Band
by artist: László Marosi
in album: The Lehár Dinasty - Marches
  type: MusicAlbum
  date published: 2015-02-01
genre: opera
isrc code: HUA251684907
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
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251684907
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ba5fdfec5c8357752c3a747f0290a0c5829b7d22ed6dd44a227a0f49c064c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251684907.
  date published: 2026-07-02T11:34:59Z
audio: Losonczy March, Op. 20
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Hungarian Folk Song (Kuruts) March, Op. 40
type: MusicRecording
duration: PT2M34S
duration ms: 154866
explicit: false
by artist: Franz Lehár
by artist: The Budapest Symphonic Band
by artist: László Marosi
in album: The Lehár Dinasty - Marches
  type: MusicAlbum
  date published: 2015-02-01
genre: opera
isrc code: HUA251684908
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251684908
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d68367859c2eed75b6630afcac24946651c0b778d4db3ec9b2ff99d5d7470d3. 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/HUA251684908.
  date published: 2026-07-02T03:55:08Z
audio: Hungarian Folk Song (Kuruts) March, Op. 40
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 1
  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
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Liveness
type: PropertyValue
value: 0.055

Valence (Positivity)
type: PropertyValue
value: 0.418

Loudness (dB)
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value: -25.864

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Marche funèbre d'une marionnette
type: MusicRecording
duration: PT4M24S
duration ms: 264506
explicit: false
by artist: Charles Gounod
by artist: New London Orchestra
by artist: Ronald Corp
in album: European Light Music Classics
  type: MusicAlbum
  date published: 1998-01-01
popularity: 3
genre: opera
isrc code: GBAJY9799807
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T10:31:43+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x2e71fb9ebace4926a657fd4b3d06591c01f540ab590a1a2934c7f727196db5b0
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/GBAJY9799807
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 0x2e71fb9ebace4926a657fd4b3d06591c01f540ab590a1a2934c7f727196db5b0. 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/GBAJY9799807.
  date published: 2026-07-08T08:56:20Z
audio: Marche funèbre d'une marionnette
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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    value: 0.76
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.351
  additional property: Loudness (dB)
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El relicario
type: MusicRecording
duration: PT3M4S
duration ms: 184506
explicit: false
by artist: José Padilla
by artist: New London Orchestra
by artist: Ronald Corp
in album: European Light Music Classics
  type: MusicAlbum
  date published: 1998-01-01
popularity: 2
isrc code: GBAJY9799810
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9799810
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 0xc2af793fa332a25fff7edf40c3593fbcacdc58210ed696f06503617dc27fcc99. 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/GBAJY9799810.
  date published: 2026-07-08T03:22:41Z
audio: El relicario
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.261
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.475
  additional property: Key Name
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    value: E
  additional property: Mode Name
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Tesoro mio!
type: MusicRecording
duration: PT7M13S
duration ms: 433000
explicit: false
by artist: Ernesto Becucci
by artist: New London Orchestra
by artist: Ronald Corp
in album: European Light Music Classics
  type: MusicAlbum
  date published: 1998-01-01
popularity: 2
isrc code: GBAJY9799811
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9799811
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 0xa4ecb79db8395b3ce2ed64aa541f47688b30b9662abf085c72d189c3112eb3a4. 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/GBAJY9799811.
  date published: 2026-07-08T03:20:19Z
audio: Tesoro mio!
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.306
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.277
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.87
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
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Ball-Szene
type: MusicRecording
duration: PT5M48S
duration ms: 348000
explicit: false
by artist: Joseph Hellmesberger I
by artist: New London Orchestra
by artist: Ronald Corp
in album: European Light Music Classics
  type: MusicAlbum
  date published: 1998-01-01
popularity: 2
isrc code: GBAJY9799812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9799812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8683335494d5c5cfce66084f81d3e6332e8214e4bf828d84d88b870f8c5b4ee5. 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/GBAJY9799812.
  date published: 2026-07-08T03:53:27Z
audio: Ball-Szene
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.573
  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Mondnacht auf der Alster
type: MusicRecording
duration: PT8M11S
duration ms: 491160
explicit: false
by artist: Oscar Fetras
by artist: New London Orchestra
by artist: Ronald Corp
in album: European Light Music Classics
  type: MusicAlbum
  date published: 1998-01-01
popularity: 2
isrc code: GBAJY9799814
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x132f12081781db616fba32af04e1525bc44a652a5cf609e52cd7490dc69b0434
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJY9799814
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132f12081781db616fba32af04e1525bc44a652a5cf609e52cd7490dc69b0434. 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/GBAJY9799814.
  date published: 2026-07-08T03:22:41Z
audio: Mondnacht auf der Alster
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Franz Lehár: Das Land des Lächelns (QS)
type: MusicAlbum
date published: 1975-01-01
track: Das Land des Lächelns - Arr. Bert Grund / Act 2: Dein ist mein ganzes Herz
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231266
  explicit: false
  by artist: Franz Lehár
  by artist: René Kollo
  by artist: Radio-Sinfonieorchester Stuttgart
  by artist: Wolfgang Ebert
  in album: Franz Lehár: Das Land des Lächelns (QS)
    type: MusicAlbum
    date published: 1975-01-01
  popularity: 2
  genre: opera
  isrc code: DEF077504330
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:53:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe72a35899113436e02eb2222e4507628a1cf226e8797404e0ea87a83cf0ff6fa
  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/DEF077504330
  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 0xe72a35899113436e02eb2222e4507628a1cf226e8797404e0ea87a83cf0ff6fa. 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/DEF077504330.
    date published: 2026-07-08T03:22:41Z
  audio: Das Land des Lächelns - Arr. Bert Grund / Act 2: Dein ist mein ganzes Herz
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.132
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.169
    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Lehár: Wo die Lerche singt
type: MusicAlbum
date published: 2015-03-06

Lehar: Paganini
type: MusicAlbum
date published: 2015-03-06

Lehár: Paganini
type: MusicAlbum
date published: 2015-01-22

Lehár: Das Land des Lächelns
type: MusicAlbum
date published: 2014-09-05

Wiener Operettenarien
type: MusicAlbum
date published: 2024-05-03
track: Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278160
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  by artist: Lucia Popp
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
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    type: MusicAlbum
    date published: 2024-05-03
  popularity: 3
  isrc code: GBAYC8602649
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602649
  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 0x7e82799aa7752ef8e79e89c143c488da483576658a024eb80075a7dae12aa243. 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/GBAYC8602649.
    date published: 2026-07-08T03:20:19Z
  audio: Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
    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
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Lincke: Frau Luna: "Schlösser, die im Monde liegen"
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305733
  explicit: false
  by artist: Paul Lincke
  by artist: Lucia Popp
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Wiener Operettenarien
    type: MusicAlbum
    date published: 2024-05-03
  popularity: 3
  isrc code: GBAYC8601884
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8601884
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb04d1dcda97ad2993a0ee515f586032c010d66652172fd80b77391c86ca5b4b. 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/GBAYC8601884.
    date published: 2026-07-08T03:20:19Z
  audio: Lincke: Frau Luna: "Schlösser, die im Monde liegen"
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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
      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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track: Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
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  by artist: Lucia Popp
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
track: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
track: Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
track: Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
track: Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
track: Suppé: Leichte Kavallerie: Ouvertüre

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x5b5d72c6b6b6cc86e7090a6b5674a8b39bc7352a5722449d7f0b61056181c779

OTSHash
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OTSBitcoinBlock
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value: 957120

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8602647

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5d72c6b6b6cc86e7090a6b5674a8b39bc7352a5722449d7f0b61056181c779. 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/GBAYC8602647.
date published: 2026-07-08T03:22:41Z

Strauss, J. II / Orch. Stalla: Die Tänzerin Fanny Elssler, Act 2: "Draußen in Sievering" (Fanny)
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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by artist: Franz Lehár
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
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popularity: 3
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: 2026-07-08T03:22:41Z
audio: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
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by artist: Johann Strauss II
by artist: Ralph Benatzky
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
by artist: Andrew Lucas
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popularity: 2
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Benatzky & Strauss II, J.: Casanova, Act 1: Nonnenchor. "O Madonna, auf uns sieh!" - Lied der Laura. "O Marie, wie entflieh" (Laura, Chor)
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Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
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by artist: Carl Millöcker
by artist: Theo Mackeben
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Wiener Operettenarien
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popularity: 2
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mackeben & Millöcker: Die Dubarry: "Ich schenk mein Herz nur dem allein" (Jeanne)
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Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
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by artist: Franz Lehár
by artist: Lucia Popp
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Ambrosian Opera Chorus
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popularity: 2
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Lehár: Giuditta: "In einem Meer von Liebe" (Giuditta, Chor)
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Suppé: Leichte Kavallerie: Ouvertüre
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Wiener Operettenarien
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popularity: 2
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Suppé: Leichte Kavallerie: Ouvertüre
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Léhar: Der Zarewitsch (Querschnitt)
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date published: 2014-12-05

Dein ist mein ganzes Herz: The Most Beautiful Melodies by Franz Lehar (Live)
type: MusicAlbum
date published: 2022-02-04

Lehár: Giuditta (Live)
type: MusicAlbum
date published: 2016-06-03

Karajan A-Z: Holst - Liszt
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date published: 2024-08-02
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: The Planets, Op. 32: II. Venus, the Bringer of Peace
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  subject of: OpenTimestamps Proof of Existence
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Gold and Silver
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The Richard Tauber Collection, Vol. 5: The Early Lehar Recordings (1924-1929)
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A Festival of Song
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The Record of Singing, Vol. 2, Pt. 7
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Tu che m'hai preso il cuor
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Schon ist die Welt (Beautiful World)
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Die Stimme für Millionen. Wunschmelodien und Radio-raritäten, Vol. 2
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Verdi: Rigoletto, Act 3: "La donna è mobile" (Instrumental Version, Arr. Pryce Jackman)
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Purcell: Trumpet Sonata in D Major, Z. 850: III. Allegro
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Bach, JS / Orch. Marriner: Was mir behagt, ist nur die muntre Jagd, BWV 208 "Jagdkantate": IX. Aria. "Schafe können sicher weiden"
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Berlioz: La damnation de Faust, Op. 24, H 111: Danse des sylphes
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by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Britten: Simple Symphony, Op. 4: I. Boisterous Bourrée
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by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Britten: Simple Symphony, Op. 4: I. Boisterous Bourrée
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Vivaldi: Concerto for Violin and Oboe in B-Flat Major, RV 548: III. Allegro (Version for Trumpet and Violin)
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by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Vivaldi: Concerto for Violin and Oboe in B-Flat Major, RV 548: III. Allegro (Version for Trumpet and Violin)
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Bizet / Orch. Guiraud: Suite No. 2 de L'Arlésienne: IV. Farandole
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Bizet / Orch. Guiraud: Suite No. 2 de L'Arlésienne: IV. Farandole
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Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Telemann: Ouverture-Suite for Recorder and Strings in A Minor, TWV 55:a2: II. Les plaisirs
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Telemann: Ouverture-Suite for Recorder and Strings in A Minor, TWV 55:a2: II. Les plaisirs
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Dvořák: Nocturne, Op. 40, B. 47
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subject of: OpenTimestamps Proof of Existence
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Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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  date published: 2026-06-13T13:32:09Z
audio: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
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Puccini: Turandot, Act 3: "Nessun dorma" (Instrumental Version, Arr. Pryce Jackman)
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  date published: 2026-07-02T03:30:09Z
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Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 13, Waltz of the Flowers
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  date published: 2026-07-02T03:30:09Z
audio: Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 13, Waltz of the Flowers
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Schubert: Rosamunde, Op. 26, D. 797: Entr'acte III
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  date published: 2026-07-02T03:30:09Z
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Stravinsky: Pulcinella: II. Serenata. “Mentre l’erbetta” - Scherzino
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  date published: 2026-07-02T03:55:08Z
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Falla: El sombrero de tres picos, Pt. 2: Danza de los vecinos
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Grieg: Peer Gynt, Op. 23, Act 4: No. 18, Solveig's Song
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Grieg: Peer Gynt, Op. 23, Act 4: No. 18, Solveig's Song
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Rossini: Il barbiere di Siviglia: Overture
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by artist: Gioachino Rossini
by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
in album: Handel: The Queen of Sheba - Bach: Brandenburg Concerto - Mozart: Jupiter Symphony - Rossini: The Barber of Seville - Grieg: Solveig's Song - Bizet: L'Arlésienne - Tchaikovsky: Waltz of the F
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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: 2026-07-02T03:30:09Z
audio: Rossini: Il barbiere di Siviglia: Overture
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Beethoven: Romance for Violin and Orchestra No. 1 in G Major, Op. 40
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Beethoven: Romance for Violin and Orchestra No. 1 in G Major, Op. 40
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Haydn: Die Schöpfung, Hob. XXI:2, Pt. 3: No. 34, Schlusschor. "Singt dem Herren alle Stimmen"
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Haydn: Die Schöpfung, Hob. XXI:2, Pt. 3: No. 34, Schlusschor. "Singt dem Herren alle Stimmen"
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Handel: Serse, HWV 40, Act 1: Largo. "Ombra mai fù" (Orch. Connah)
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Handel: Serse, HWV 40, Act 1: Largo. "Ombra mai fù" (Orch. Connah)
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Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto allegro
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto allegro
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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Albinoni: Adagio in G Minor
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  date published: 2026-07-02T03:55:08Z
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Fauré: Pavane, Op. 50 (Instrumental Version)
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  date published: 2026-07-02T03:55:08Z
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Shostakovich: Suite from The Gadfly, Op. 97a: V. Barrel Organ Waltz (Orch. Atovmyan)
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  date published: 2026-07-02T03:55:08Z
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Mendelssohn: String Octet in E-Flat Major, Op. 20, MWV R20: III. Scherzo. Allegro leggierissimo (Orchestral Version)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mendelssohn: String Octet in E-Flat Major, Op. 20, MWV R20: III. Scherzo. Allegro leggierissimo (Orchestral Version)
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Villa-Lobos: Fantasia para saxophone, W490: III. Très animé
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  date published: 2026-07-02T03:55:08Z
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Vaughan Williams: 3 Preludes Founded on Welsh Hymn Tunes: No. 2, Rhosymedre (Arr. Foster for String Orchestra)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Borodin: String Quartet No. 2 in D Major: III. Notturno. Andante (Orch. Marriner)
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    date published: 2026-07-07T18:50:38Z
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track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Was sagen Sie, Njegus (Zeta/Njegus/Danilo)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): X. Rezitativ: Mein tapferer Reitersmann...Tanz (Kolo)
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track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)
track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Die Baronin und Herr Rosillon (Njegus/Zeta/Danilo)
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track: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Oh, ich fürchte, wir stören! (Zeta/Danilo/Valencienne/Njegus)

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date published: 2026-07-02T03:55:08Z

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by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:35:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1565fb632b025ba544c08eb7d6f0b870b16ccfbf1335f97ccaf49519cce165a6
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/GBAYC0001015
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 0x1565fb632b025ba544c08eb7d6f0b870b16ccfbf1335f97ccaf49519cce165a6. 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/GBAYC0001015.
  date published: 2026-07-08T08:56:20Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Sehen Sie, da würde ich jetzt zu meinem Manne sagen...Tanzduett (Walzer) (Hanna/Danilo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.66
  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: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.403
  additional property: Liveness
    type: PropertyValue
    value: 0.361
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.227
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.136
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Njegus, Geliebter, ich bin hier (Danilo/Njegus)
type: MusicRecording
duration: PT1M19S
duration ms: 79826
explicit: false
by artist: Franz Lehár
by artist: Eberhard Waechter/Franz Böheim/Philharmonia Orchestra/Lovro von Matacic
by artist: Eberhard Waechter
by artist: Franz Böheim
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:52:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc50bd906fc2d65265dd9447183c6d9d5d34cc5e6a202a12a3d5f4c943e9e7515
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/GBAYC0001000
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 0xc50bd906fc2d65265dd9447183c6d9d5d34cc5e6a202a12a3d5f4c943e9e7515. 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/GBAYC0001000.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Njegus, Geliebter, ich bin hier (Danilo/Njegus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 82.052
  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: 0.643
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.863
  additional property: Acousticness
    type: PropertyValue
    value: 0.901
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.405
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.405
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.976
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
type: MusicRecording
duration: PT1M29S
duration ms: 89733
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:29:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c851073235ef60c262aa4214d471ff47a134f9d4537ec379a87ce80f1141376
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/GBAYC0001016
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 0x4c851073235ef60c262aa4214d471ff47a134f9d4537ec379a87ce80f1141376. 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/GBAYC0001016.
  date published: 2026-07-08T03:22:41Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): XI. Rezitativ: Nein, nein, nein, nein...Mein Freund, Vernunft! (Valencienne/Camille)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.458
  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: 0.497
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.181
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.346
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.427
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
type: MusicRecording
duration: PT2M22S
duration ms: 142000
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:26:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0aad5a62f304018589e1be7967a1ac338e14ec0e5afba2ae77b574ceab4f3ab
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/GBAYC0001017
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 0xc0aad5a62f304018589e1be7967a1ac338e14ec0e5afba2ae77b574ceab4f3ab. 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/GBAYC0001017.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Wie eine Rosenknospe (Valencienne/Camille)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.891
  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: 0.232
  additional property: Energy
    type: PropertyValue
    value: 0.115
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.201
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.252
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.727
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)
type: MusicRecording
duration: PT2M28S
duration ms: 148493
explicit: false
by artist: Franz Lehár
by artist: Hanny Steffek/Nicolai Gedda/Philharmonia Orchestra/Lovro von Matacic
by artist: Hanny Steffek
by artist: Nicola Gedda
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:37:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf9b48daabf6dbf838407c11da149aa261afd1717d2315db041b9c46031a357e
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/GBAYC0001018
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 0xaf9b48daabf6dbf838407c11da149aa261afd1717d2315db041b9c46031a357e. 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/GBAYC0001018.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Sieh dort den kleinen Pavillon (Valencienne/Camille)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.572
  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: 0.219
  additional property: Energy
    type: PropertyValue
    value: 0.113
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.086
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.357
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Die Baronin und Herr Rosillon (Njegus/Zeta/Danilo)
type: MusicRecording
duration: PT1M27S
duration ms: 87000
explicit: false
by artist: Franz Lehár
by artist: Josef Knapp/Eberhard Waechter/Franz Böheim/Philharmonia Orchestra/Lovro von Matacic
by artist: Eberhard Waechter
by artist: Franz Böheim
by artist: Josef Knapp
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001019
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:32:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05cba8414d060d2c0e0b52fdf63011d748d2a6426272d3ea9e5cd4f2e90f30eb
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/GBAYC0001019
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 0x05cba8414d060d2c0e0b52fdf63011d748d2a6426272d3ea9e5cd4f2e90f30eb. 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/GBAYC0001019.
  date published: 2026-07-08T03:22:41Z
audio: Die lustige Witwe (The Merry Widow) (2000 - Remaster): Rezitativ: Die Baronin und Herr Rosillon (Njegus/Zeta/Danilo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.434
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.605
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.898
  additional property: Acousticness
    type: PropertyValue
    value: 0.805
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.233
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.194
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die lustige Witwe (The Merry Widow) (2000 - Remaster): Zwischenspiel/Entr'acte (Orchester)
type: MusicRecording
duration: PT2M30S
duration ms: 150426
explicit: false
by artist: Franz Lehár
by artist: The Philharmonia Orchestra/ Lovro Von Matacic
by artist: Lovro Von Matacic
by artist: Philharmonia Orchestra
in album: Lehár: Die Lustige Witwe
  type: MusicAlbum
  date published: 2000-07-01
genre: opera
isrc code: GBAYC0001025
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:52:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06b5aa1bcc8af2d328fc6dcd52b8911dcb0c5c0fd99cf4471d7914cb4319a7a5
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/GBAYC0001025
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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Rameau: Les fêtes d'Hébé, Act 3: Terpsichore, les nymphes, les faunes et les sylvains
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Thomas: Hamlet, Appendix: Ballet. "La fête du printemps". Scène du bouquet
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Thomas: Hamlet, Appendix: Ballet. "La fête du printemps". Scène du bouquet
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Lully: Phaëton, LWV61, Act 4: Air
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Lully: Phaëton, LWV61, Act 4: Air
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Saint-Saëns: 2 Chœurs, Op. 68: No. 2, Les fleurs et les arbres
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Saint-Saëns: 2 Chœurs, Op. 68: No. 2, Les fleurs et les arbres
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": III. Allegro
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Rimsky-Korsakov: In Spring, Op. 43: No. 2, Not the Wind, blowing from the Heights (Version for Trumpet and Piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Massenet: Année passée, Livre IV "Matins de printemps": II. Lilas. Très modéré et caressant
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subject of: OpenTimestamps Proof of Existence
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante, Pt. 1
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  date published: 2026-06-13T13:32:09Z
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante, Pt. 2
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante, Pt. 3
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante, Pt. 4
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  date published: 2026-06-13T13:32:09Z
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Mozart: Piano Concerto No. 21 in C Major, K. 467: II. Andante, Pt. 7
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Ives: Frühlingslied
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Bartók: For Children, Sz. 42, Book IV "Slovakian Folk Songs": No. 75, Deep in the Forest. Poco andante
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Satie: 3 Autres mélodies: No. 3, Les fleurs
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Marais: Pièces en trio, Suite No. 3 en ré majeur: III. Fantaisie champestre
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Janáček: 15 Moravian Folksongs for Piano: No. 11, Bězí voda, bězí
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Rachmaninov: 12 Romances, Op. 21: No. 5, Lilacs
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Rachmaninov: 12 Romances, Op. 21: No. 5, Lilacs
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Ligeti: Mátraszentimrei dalok: No. 4, Erdőbe, erdőbe
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subject of: OpenTimestamps Proof of Existence
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Des Prez: El grillo
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subject of: OpenTimestamps Proof of Existence
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Britten: Spring Symphony, Op. 44, Pt. 1: II. The Merry Cuckoo
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  date published: 2026-06-13T15:41:10Z
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Elgar: The Wand of Youth, Suite No. 2, Op. 1b: III. Moths and Butterflies
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  date published: 2026-06-13T13:32:09Z
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Schwarz-Schilling: Der wandernde Musikant: No. 4, Durch Feld und Buchenhallen
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  date published: 2026-06-13T13:32:09Z
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Brahms: 8 Lieder und Gesänge, Op. 57: No. 1, Von waldbekränzter Höhe
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Chopin: 17 Polish Songs, Op. 74: No. 2, Wiosna
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subject of: OpenTimestamps Proof of Existence
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audio: Chopin: 17 Polish Songs, Op. 74: No. 2, Wiosna
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Telemann: Tafelmusik, Pt. 3: Ouverture-Suite in B-Flat Major, TWV 55:B1: II. Bergerie. Un peu vivement
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Telemann: Tafelmusik, Pt. 3: Ouverture-Suite in B-Flat Major, TWV 55:B1: II. Bergerie. Un peu vivement
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Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 9, Duet and Chorus. "See Nature Rejoicing"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 9, Duet and Chorus. "See Nature Rejoicing"
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Shostakovich: The Song of the Forests, Op. 81: II. We Will Clothe Our Homeland with Forests (Live)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Shostakovich: The Song of the Forests, Op. 81: II. We Will Clothe Our Homeland with Forests (Live)
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Rossini: Guillaume Tell, Act 1: "Près des torrents qui grondent" (Chœur)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Grieg: Lyric Pieces, Book 3, Op. 43: No. 6, To Spring
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  date published: 2026-06-13T13:32:09Z
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Tchaikovsky: 6 Romances, Op. 57: No. 2, On the Golden Cornfields
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Pierné: Album pour mes petits amis, Op. 14: No. 1, Pastorale
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audio: Pierné: Album pour mes petits amis, Op. 14: No. 1, Pastorale
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Stravinsky: Pastorale (1933 Version for Violin and Wind Quartet)
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Monteverdi: Il terzo libro de madrigali: No. 11, O primavera, gioventù de l'anno
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Couperin: Troisième livre de pièces de clavecin, Treizième ordre: II. Les rozeaux
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Ravel: Manteau de fleurs, M. 39
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audio: Ravel: Manteau de fleurs, M. 39
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Liszt: Années de pèlerinage, Première année "Suisse", S. 160: No. 7, Églogue
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Gounod: Roméo et Juliette, Act 4: Ballet. Valse des fleurs - Entrée des jeunes filles
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Schubert: Naturgenuß, Op . 16 No. 2, D. 422
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by artist: Arnold Schoenberg Chor
by artist: Barbara Moser
by artist: Erwin Ortner
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genre: classical-piano
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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: 2026-07-02T03:55:08Z
audio: Schubert: Naturgenuß, Op . 16 No. 2, D. 422
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Stolz: Im Prater blüh'n wieder die Bäume, Op. 247 "Wiener Lied" (Version with Orchestra)
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duration: PT3M44S
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by artist: Symphonie-Orchester Graunke
by artist: Anneliese Rothenberger
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Stolz: Im Prater blüh'n wieder die Bäume, Op. 247 "Wiener Lied" (Version with Orchestra)
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Le Jeune: Le printemps: No. 2, Revecy venir du printans
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by artist: Ensemble Gilles Binchois
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Le Jeune: Le printemps: No. 2, Revecy venir du printans
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Mahler: Lieder eines fahrenden Gesellen: No. 2, Ging heut' morgen über's Feld
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by artist: Ben Glassberg
by artist: Opéra Orchestre Normandie Rouen
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Mahler: Lieder eines fahrenden Gesellen: No. 2, Ging heut' morgen über's Feld
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Haydn: The Seasons, Hob. XXI:3, Spring: No. 4, Arie. "Schon eilet froh der Akkermann" (Simon)
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by artist: Sigiswald Kuijken
by artist: La Petite Bande
by artist: Peter Lika
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Haydn: The Seasons, Hob. XXI:3, Spring: No. 4, Arie. "Schon eilet froh der Akkermann" (Simon)
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Classical Voices: Spring
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date published: 2025-04-18
track: La traviata: Cabaletta. Oh mio rimorso!
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: La traviata: Cabaletta. Oh mio rimorso!
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track: Faust, CG 4: Salut! Demeure chaste et pure
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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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Paganini
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Lehár: Wiener Frauen (Live)
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Lehár: Der Graf von Luxemburg
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Die Lustige Witwe
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Lehár: Zigeunerliebe
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Lehár: Paganini (Live)
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Lehár: Wo die Lerche singt
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Masterpieces of Operetta: Franz Lehár Conducts Lehár, Vol. 2 (2015 Digital Remaster)
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A Garden After the Rain - Sounds & Fragrances
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Forest Murmurs
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Airs d'opérettes: Le pays du sourire, Les noces de Jeannette, Madame Chrysanthème, Trois valses...
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Opening the Doors
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Torrid Classics - Voluptuous Music for Passionate Nights
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A Merry Feast with Music
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Impressions of Orient
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Janáček: On an Overgrown Path, Book I: No. 2, A Blown-Away Leaf
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Couperin, F: Premier livre de pièces de clavecin, Cinquième ordre: XII. Les vendangeuses
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duration: PT1M52S
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by artist: Laurence Boulay
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Couperin, F: Premier livre de pièces de clavecin, Cinquième ordre: XII. Les vendangeuses
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Gershwin: A Foggy Day
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duration: PT3M46S
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explicit: false
by artist: George Gershwin
by artist: Stéphane Grappelli
by artist: Yehudi Menuhin
by artist: Laurie Holloway
by artist: Pierre Michelot
by artist: Ronnie Verrell
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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: 2026-07-02T03:30:09Z
audio: Gershwin: A Foggy Day
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Weber: Der Freischütz, Op. 77, J. 277, Act 3: Huntsmen's Chorus. "Was gleicht wohl auf Erden dem Jägervergnügen?" (Chor)
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duration: PT2M36S
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by artist: Bernard Haitink
by artist: Chorus of the Royal Opera House, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
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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: 2026-07-02T03:30:09Z
audio: Weber: Der Freischütz, Op. 77, J. 277, Act 3: Huntsmen's Chorus. "Was gleicht wohl auf Erden dem Jägervergnügen?" (Chor)
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Prokofiev: Cinderella, Op. 87, Act 1: No. 15, Autumn Fairy
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by artist: Sergei Prokofiev
by artist: André Previn
by artist: London Symphony Orchestra
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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: 2026-07-02T03:30:09Z
audio: Prokofiev: Cinderella, Op. 87, Act 1: No. 15, Autumn Fairy
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Autumn Leaves
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by artist: Gautier Capuçon
by artist: Jérôme Ducros
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Autumn Leaves
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Beecham & Handel: Love in Bath: IV. Hunting Scene
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by artist: Sir Thomas Beecham
by artist: Royal Philharmonic Orchestra
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genre: classical
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genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Beecham & Handel: Love in Bath: IV. Hunting Scene
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Ives: September
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by artist: Susan Graham
by artist: Pierre-Laurent Aimard
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subject of: OpenTimestamps Proof of Existence
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audio: Ives: September
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Satie: 3 Morceaux en forme de poire: I. Manière de commencement. Allez modérément
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by artist: Anne Queffélec
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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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Mussorgsky: Gathering Mushrooms
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mussorgsky: Gathering Mushrooms
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The Christian Harmony: No. 8, Harvest Hymn
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: The Christian Harmony: No. 8, Harvest Hymn
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Purcell: The Fairy Queen, Z. 629, Act 4: Song. "See, See My Many Colour'd Fields"
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subject of: OpenTimestamps Proof of Existence
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audio: Purcell: The Fairy Queen, Z. 629, Act 4: Song. "See, See My Many Colour'd Fields"
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MacDowell: New England Idyls, Op. 62: No. 10, The Joy of Autumn
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subject of: OpenTimestamps Proof of Existence
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audio: MacDowell: New England Idyls, Op. 62: No. 10, The Joy of Autumn
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Légendes d'automne
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audio: Légendes d'automne
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Glazunov: The Seasons, Op. 67, Pt. 4 "Autumn": No. 15, Petit adagio
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp