Iván Fischer
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genre: classical
genre: orchestra
description: Iván Fischer (born 20 January 1951) is a Hungarian conductor and composer. Biography Born in Budapest into a musical family of Jewish heritage, Fischer initially studied piano, violin, cello and com
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    by artist: Hungarian State Orchestra
    by artist: Ádám Fischer
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album: Gregor, Jozsef: Bass Opera Arias
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album: Mikhail Pletnev - Concerti & Encores (Live)
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  track: Keyboard Concerto in D Major, Hob. XVIII:11: III. Rondo all'Ungarese - Allegro assai - Live
  track: Suite for Piano and Orchestra: I. Snowflakes. Allegro vivace - Live
  track: Suite for Piano and Orchestra: II. Lyrical Waltz - Live
  track: Suite for Piano and Orchestra: IV. Career. Presto - Live
  track: 3 Mazurkas, Op. 63: No. 3 in C-Sharp Minor. Allegretto - Live
  track: L'alouette - Live
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album: Choral Music (100 Masterpieces)
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album: Christmas Meditation
album: Fifty Years of Hungaroton (1951-2001) - Conductors
album: Composer’s Portrait, Vol. 1: Eine Deutsch-Jiddische Kantate, Tsuchigumo & Other Works
album: Hallelujah: Geistliche Choralmusik
album: Beethoven: Symphony No. 3 "Eroica" & Coriolan Overture
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album: Mahler: Symphony No. 3
album: Berlinsymphony Lover-Skysong (Live)
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album: Tchaikovsky: Symphony No. 6 - Borodin: Polovtsian Dances
album: Mahler: Symphony No. 9
album: Brahms: Symphony No. 4, Hungarian Dances Nos. 3, 7 & 11
album: Lieder eines fahrenden Gesellen, Blumine, Kindertotenlieder
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album: Liszt: Piano Concertos Nos. 1 and 2 / Dohnanyi: Variations On A Nursery Theme
album: Kodaly: Psalmus Hungaricus / Marosszek Dances / Galanta Dances
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album: Bartók: Violin Concertos
album: Wagner: Götterdämmerung, Meistersinger von Nürnberg (excerpts), Siegfried - Idyll
album: Mahler: Symphony No. 5
album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
album: Mahler: Symphony No. 1
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Hungarian Dance No. 4 in F sharp minor - Orchestrated by Iván Fischer
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  date published: 2016-03-11
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L'oiseau de feu, K. 10. Suite 1919: V. Danse infernale du roi Kastchei
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Keyboard Concerto in D Major, Hob. XVIII:11: III. Rondo all'Ungarese - Allegro assai - Live
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Suite for Piano and Orchestra: I. Snowflakes. Allegro vivace - Live
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Suite for Piano and Orchestra: II. Lyrical Waltz - Live
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Suite for Piano and Orchestra: IV. Career. Presto - Live
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3 Mazurkas, Op. 63: No. 3 in C-Sharp Minor. Allegretto - Live
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L'alouette - Live
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Nocturne No. 20 in C-Sharp Minor, Op. Posth - Live
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Choral Music (100 Masterpieces)
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    date published: 2026-07-08T03:53:27Z
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track: Die Lorelei: Loreley
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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: Ave verum corpus, K. 618
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  subject of: OpenTimestamps Proof of Existence
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track: 6 Lieder, Op. 50: No. 2. Der Jager Abschied
track: Meerstern ich dich grusse
track: Nachthelle, Op. 134, D. 892
track: Jesu, du mein liebstes Leben, BWV 356
track: Hymne an die Nacht
track: Tantum ergo, D. 962
track: So nimm denn meine Hande
track: Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
track: Rosamunde, D. 797: Hirtenchor
track: Vesperae solennes de confessore, K. 339: Laudate Dominum
track: Es loscht das Meer die Sonne aus
track: In dulci jubilo, BWV 368
track: Das Dorfchen, Op. 11, No. 1, D. 598
track: Jesu, meines Herzens Freud, BWV 361
track: Offertory: Intende voci, D. 963
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
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date published: 2026-07-08T03:20:19Z

Ave verum corpus, K. 618
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6 Lieder, Op. 50: No. 2. Der Jager Abschied
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: 6 Lieder, Op. 50: No. 2. Der Jager Abschied
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Meerstern ich dich grusse
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Meerstern ich dich grusse
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Nachthelle, Op. 134, D. 892
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Nachthelle, Op. 134, D. 892
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Jesu, du mein liebstes Leben, BWV 356
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Jesu, du mein liebstes Leben, BWV 356
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Hymne an die Nacht
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by artist: Jörg Peter Weigle
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popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Hymne an die Nacht
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Tantum ergo, D. 962
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by artist: Franz Schubert
by artist: Gisela Fetting
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by artist: Ekkehard Wagner
by artist: Karl-Heinz Schmieder
by artist: Rundfunkchor Berlin
by artist: Berlin Radio Symphony Orchestra
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
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popularity: 3
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Tantum ergo, D. 962
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So nimm denn meine Hande
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by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
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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: So nimm denn meine Hande
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Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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by artist: Friedrich Silcher
by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff228999e6c7bd9afd722f1fc6e83703e95177ff07ed269c4464143b5bbe859. 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/DEB269900113.
  date published: 2026-07-08T03:53:27Z
audio: Winterreise, Op. 89, D. 911: No. 5. Der Lindenbaum (arr. for choir)
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Rosamunde, D. 797: Hirtenchor
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duration: PT4M16S
duration ms: 256560
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by artist: Cologne West German Radio Chorus
by artist: Cologne West German Radio Orchestra
by artist: Helmut Froschauer
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USB8U1014777
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rosamunde, D. 797: Hirtenchor
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Vesperae solennes de confessore, K. 339: Laudate Dominum
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by artist: Jeunesses Musicales Chorus
by artist: Budapest Philharmonic Orchestra
by artist: Iván Fischer
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  type: MusicAlbum
  date published: 2007-01-01
popularity: 3
genre: classical
genre: classical-era
isrc code: DEB261201505
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vesperae solennes de confessore, K. 339: Laudate Dominum
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Es loscht das Meer die Sonne aus
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by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 1
isrc code: USB8U1014894
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Es loscht das Meer die Sonne aus
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In dulci jubilo, BWV 368
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duration: PT2M35S
duration ms: 155280
explicit: false
by artist: Johann Sebastian Bach
by artist: Rostock Motet Choir
by artist: Leipzig Capella Fidicinia
by artist: Hartwig Eschenburg
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 3
genre: classical
genre: classical-piano
isrc code: USB8U1011255
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d4e5eafe86f5330f9dbb9c72a473d79383907d1303bab5ec53fb629dc94781. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1011255.
  date published: 2026-07-08T03:20:19Z
audio: In dulci jubilo, BWV 368
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Das Dorfchen, Op. 11, No. 1, D. 598
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duration: PT4M28S
duration ms: 268240
explicit: false
by artist: Franz Schubert
by artist: Bernd Casper
by artist: Berlin Radio Chorus, male section
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x63652a11d99b6e29d46a19d0d22a731f1671face6e97b462c63affcfdba7c679. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1014766.
  date published: 2026-07-08T03:22:41Z
audio: Das Dorfchen, Op. 11, No. 1, D. 598
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Jesu, meines Herzens Freud, BWV 361
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duration: PT3M6S
duration ms: 186400
explicit: false
by artist: Johann Sebastian Bach
by artist: Rostock Motet Choir
by artist: Leipzig Capella Fidicinia
by artist: Hartwig Eschenburg
in album: Choral Music (100 Masterpieces)
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  date published: 2007-01-01
popularity: 2
genre: classical
genre: classical-piano
isrc code: DEB261201502
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae912066d379f2c732cdd5ca301b082d3fe99aed32a7e325931b687599d0c19. 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/DEB261201502.
  date published: 2026-07-08T03:53:27Z
audio: Jesu, meines Herzens Freud, BWV 361
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Offertory: Intende voci, D. 963
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duration: PT9M25S
duration ms: 565120
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by artist: Peter Schreier
by artist: Rundfunkchor Berlin
by artist: Berlin Radio Symphony Orchestra
by artist: Dietrich Knothe
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEB261201539
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19bae38d94210b5f01e076fa2f95358ec464d9afa9c5594b957075fc14c058c. 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/DEB261201539.
  date published: 2026-07-08T08:56:20Z
audio: Offertory: Intende voci, D. 963
  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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Ave Maria, Op. 533: Nun ist der laute Tag verhallt
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duration: PT5M41S
duration ms: 341240
explicit: false
by artist: Franz Abt
by artist: Hans-Joachim Ribbe
by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 2
isrc code: USB8U1012563
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1012563
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a6eeb8660c21e967176390d54d970ac2c60096683725e75cf7e5004e8d7ee5. 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/USB8U1012563.
  date published: 2026-07-08T08:56:20Z
audio: Ave Maria, Op. 533: Nun ist der laute Tag verhallt
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Die Nacht, Op. 17, No. 4, D. 983c
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duration: PT3M5S
duration ms: 185760
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by artist: Leipzig Radio Chorus, male section
by artist: Jörg Peter Weigle
in album: Choral Music (100 Masterpieces)
  type: MusicAlbum
  date published: 2007-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USB8U1014772
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: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a969a4b687bd473b0989486a5736998cc91a917e67209ccd028f30c0c3e487. 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/USB8U1014772.
  date published: 2026-07-08T03:22:41Z
audio: Die Nacht, Op. 17, No. 4, D. 983c
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Choral Music (Sacred) - Handel, G.F. / Mozart, W.A. / Haydn, F.J. / Beethoven, L. Van / Bach, J.S. / Mendelssohn, Felix / Bruckner, A.
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date published: 2003-01-01
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  genre: classical
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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Classic Moods - Mozart, W.A. / Silcher, F. / Schubert, F. / Mendelssohn, Felix / Haydn, F.J. / Bruckner, A. / Brahms, J. / Bruch, M.
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Christmas Meditation
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Fifty Years of Hungaroton (1951-2001) - Conductors
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Composer’s Portrait, Vol. 1: Eine Deutsch-Jiddische Kantate, Tsuchigumo & Other Works
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Hallelujah: Geistliche Choralmusik
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Beethoven: Symphony No. 3 "Eroica" & Coriolan Overture
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Bruckner: Symphony No. 9
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Brahms: Symphony No. 3 & Serenade No. 2
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Brahms: Symphonies Nos. 1, 2, 3 & 4, And Other Works
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Mahler: Das Lied von der Erde
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Beethoven: Symphonies Nos. 1 & 5
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Mahler: Symphony No. 7
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  genre: orchestra
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f553daf4e096ce5e18337285d97dba670b7b12c1a21fa17712e378cee8294d6. 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/NLA460914614.
    date published: 2026-07-08T08:56:20Z
  audio: Symphony No. 7: IV. Nachtmusik. Andante amoroso
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    additional property: Speechiness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Mahler: Symphony No. 3
type: MusicAlbum
date published: 2017-01-01

Berlinsymphony Lover-Skysong (Live)
type: MusicAlbum
date published: 2016-06-17

Brahms: Danses hongroises
type: MusicAlbum
date published: 2016-03-11
track: Hungarian Dance No. 1 in G Minor, WoO 1
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  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Brahms: Danses hongroises
    type: MusicAlbum
    date published: 2016-03-11
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e6a8ab5ad5ab93c2a605be587c4a7f6feeef5babc87224bbfe6c2685cd0397. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803301.
    date published: 2026-07-02T03:30:09Z
  audio: Hungarian Dance No. 1 in G Minor, WoO 1
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Valence (Positivity)
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track: Hungarian Dance No. 2 in D minor - Orchestrated by Iván Fischer
  type: MusicRecording
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  by artist: Johannes Brahms
  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Brahms: Danses hongroises
    type: MusicAlbum
    date published: 2016-03-11
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  isrc code: NLA509803302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efb18c7904c37ef8c464b60cd1bdc66e7c7d26df617bbb506cf22a4a9e6abb5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803302.
    date published: 2026-07-06T07:16:32Z
  audio: Hungarian Dance No. 2 in D minor - Orchestrated by Iván Fischer
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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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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track: Hungarian Dance No. 4 in F sharp minor - Orchestrated by Iván Fischer
track: Hungarian Dance No. 5 in G Minor, WoO 1, No. 5
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  by artist: Johannes Brahms
  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Brahms: Danses hongroises
    type: MusicAlbum
    date published: 2016-03-11
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  isrc code: NLA509803305
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Hungarian Dance No. 5 in G Minor, WoO 1, No. 5
track: Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
track: Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
track: Hungarian Dance No. 9 in E minor - Orchestrated by R. Schollum
track: Hungarian Dance No. 10 in F - Orchestrated by Brahms
track: Hungarian Dance No. 12 in D minor - Orchestrated by Iván Fischer
track: Hungarian Dance No. 13 in D - Orchestrated by Iván Fischer
track: Hungarian Dance No. 15 in B flat - Orchestrated by Frigyes Hidas
track: Hungarian Dance No. 16 in F minor - Orchestrated by Albert Parlow
track: Hungarian Dance No. 20 in E Minor (Orch. Dvořák)

CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 953513

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953513

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803305

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:47:07Z

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 0x1034f546d24f041c026a172f8ac93a550fc84070bc51bef640f39bd7777e6577. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803305.
date published: 2026-06-13T12:47:07Z

Hungarian Dance No. 5 in G Minor, WoO 1, No. 5
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
  value: 0.353
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
type: MusicRecording
duration: PT3M8S
duration ms: 188493
explicit: false
by artist: Johannes Brahms
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
  type: MusicAlbum
  date published: 2016-03-11
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: NLA509803306
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  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 0xb7e49708b0b216bf47eb1197b93c7f5353a1059400950d1f612b43e5bc2b5569. 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/NLA509803306.
  date published: 2026-07-08T03:22:41Z
audio: Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
  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
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
type: MusicRecording
duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Johannes Brahms
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
  type: MusicAlbum
  date published: 2016-03-11
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: NLA509803308
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803308
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 0x7934ce9905096cb944078dbebdb37aa43b30c19aee214d69c24995ce51b7f10e. 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/NLA509803308.
  date published: 2026-07-08T03:20:19Z
audio: Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
  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
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Hungarian Dance No. 9 in E minor - Orchestrated by R. Schollum
type: MusicRecording
duration: PT2M1S
duration ms: 121493
explicit: false
by artist: Johannes Brahms
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
  type: MusicAlbum
  date published: 2016-03-11
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: NLA509803309
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803309
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
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  date published: 2026-07-08T03:20:19Z
audio: Hungarian Dance No. 9 in E minor - Orchestrated by R. Schollum
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Hungarian Dance No. 10 in F - Orchestrated by Brahms
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
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genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Hungarian Dance No. 10 in F - Orchestrated by Brahms
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Hungarian Dance No. 12 in D minor - Orchestrated by Iván Fischer
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
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genre: classical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Hungarian Dance No. 12 in D minor - Orchestrated by Iván Fischer
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Hungarian Dance No. 13 in D - Orchestrated by Iván Fischer
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
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genre: classical
genre: german-romanticism
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: 2026-07-08T03:22:41Z
audio: Hungarian Dance No. 13 in D - Orchestrated by Iván Fischer
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Hungarian Dance No. 15 in B flat - Orchestrated by Frigyes Hidas
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Brahms: Danses hongroises
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genre: classical
genre: german-romanticism
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: 2026-07-08T03:22:41Z
audio: Hungarian Dance No. 15 in B flat - Orchestrated by Frigyes Hidas
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Hungarian Dance No. 16 in F minor - Orchestrated by Albert Parlow
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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genre: classical
genre: german-romanticism
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: 2026-07-08T03:53:27Z
audio: Hungarian Dance No. 16 in F minor - Orchestrated by Albert Parlow
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Hungarian Dance No. 20 in E Minor (Orch. Dvořák)
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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genre: classical
genre: german-romanticism
genre: late-romantic-era
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Hungarian Dance No. 20 in E Minor (Orch. Dvořák)
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Tchaikovsky: Symphony No. 6 - Borodin: Polovtsian Dances
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date published: 2016-01-01

Mahler: Symphony No. 9
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Lieder eines fahrenden Gesellen, Blumine, Kindertotenlieder
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Strauss, R.: Don Juan / Till Eulenspiegels Lustige Streiche / Tod Und Verklarung
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Schubert: Symphonies Nos. 4, "Tragic", and 5
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Schubert: Symphonies Nos. 3 and 8, "Unfinished"
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Mozart: Symphonies Nos. 19, 26 and 39
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Mendelssohn: Symphony No. 3, "Scottish" / The Hebrides, Op. 26
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Mendelssohn: Symphonies Nos. 4 and 5
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  subject of: OpenTimestamps Proof of Existence
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Brahms: Symphony No. 2
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Bartók: Violin Concertos
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Wagner: Götterdämmerung, Meistersinger von Nürnberg (excerpts), Siegfried - Idyll
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    date published: 2026-07-08T03:53:27Z
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track: L'oiseau de feu, K. 10. Suite 1919: IV. Ronde des princesses
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  by artist: Igor Stravinsky
  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
    type: MusicAlbum
    date published: 2012-01-01
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: L'oiseau de feu, K. 10. Suite 1919: IV. Ronde des princesses
track: L'oiseau de feu, K. 10. Suite 1919: V. Danse infernale du roi Kastchei
track: L'oiseau de feu, K. 10. Suite 1919: VI. Berceuse
track: L'oiseau de feu, K. 10. Suite 1919: VII. Final
track: Scherzo à la Russe, K. 70
track: Tango, K. 62 (Arr. for Orchestra by Felix Guenther)

OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460912005

OTSTimestamp
type: PropertyValue
value: 2026-07-07T20:41:57Z

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 0x4a5bbf1921cc78aba3ddefbf7bb677bd18933b3723dffb53f285ed8ba24e584b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460912005.
date published: 2026-07-07T20:41:57Z

L'oiseau de feu, K. 10. Suite 1919: IV. Ronde des princesses
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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L'oiseau de feu, K. 10. Suite 1919: VI. Berceuse
type: MusicRecording
duration: PT4M1S
duration ms: 241706
explicit: false
by artist: Igor Stravinsky
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
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  date published: 2012-01-01
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additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f7bb85f8ef82be1da90a8ead20a2b3da994c8c5c4da4aca977838cef76f651. 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/NLA460912007.
  date published: 2026-07-08T03:22:41Z
audio: L'oiseau de feu, K. 10. Suite 1919: VI. Berceuse
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L'oiseau de feu, K. 10. Suite 1919: VII. Final
type: MusicRecording
duration: PT2M53S
duration ms: 173600
explicit: false
by artist: Igor Stravinsky
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
  type: MusicAlbum
  date published: 2012-01-01
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254c0c7fb68a91a1db702608a4c51e3cde430dc1e911df2496fdf600ee1b19e3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460912008.
  date published: 2026-07-06T07:16:32Z
audio: L'oiseau de feu, K. 10. Suite 1919: VII. Final
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Scherzo à la Russe, K. 70
type: MusicRecording
duration: PT3M53S
duration ms: 233573
explicit: false
by artist: Igor Stravinsky
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
  type: MusicAlbum
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b72d33ba451c2a550d2b57a7d18ae7cbae2cec60cf41611559719c9f49216a. 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/NLA460912009.
  date published: 2026-07-08T03:22:41Z
audio: Scherzo à la Russe, K. 70
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Tango, K. 62 (Arr. for Orchestra by Felix Guenther)
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duration: PT2M38S
duration ms: 158160
explicit: false
by artist: Igor Stravinsky
by artist: Budapest Festival Orchestra
by artist: Iván Fischer
in album: Stravinsky: Rite of Spring, Firebird Suite, Scherzo, Tango
  type: MusicAlbum
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isrc code: NLA460912010
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bbab1c99c9ee0067cc9cd6d8c50cf98a419a007c61a162cc574baaa846f320. 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/NLA460912010.
  date published: 2026-07-08T08:56:20Z
audio: Tango, K. 62 (Arr. for Orchestra by Felix Guenther)
  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
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Mahler: Symphony No. 1
type: MusicAlbum
date published: 2012-01-01

Brahms: Hungarian Dances / Dvorak: Slavonic Dances
type: MusicAlbum
date published: 2012-01-01
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  duration: PT3M13S
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  explicit: false
  by artist: Johannes Brahms
  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Brahms: Hungarian Dances / Dvorak: Slavonic Dances
    type: MusicAlbum
    date published: 2012-01-01
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e6a8ab5ad5ab93c2a605be587c4a7f6feeef5babc87224bbfe6c2685cd0397. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803301.
    date published: 2026-07-07T14:50:41Z
  audio: Hungarian Dance No. 1 in G Minor, WoO 1
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: Hungarian Dance No. 2 in D minor - Orchestrated by Iván Fischer
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  by artist: Johannes Brahms
  by artist: Budapest Festival Orchestra
  by artist: Iván Fischer
  in album: Brahms: Hungarian Dances / Dvorak: Slavonic Dances
    type: MusicAlbum
    date published: 2012-01-01
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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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
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    date published: 2026-07-08T08:56:20Z
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  subject of: OpenTimestamps Proof of Existence
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track: Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
track: Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
track: Hungarian Dance No. 10 in F - Orchestrated by Brahms
track: 8 Slavonic Dances, Op. 46, B. 83: No. 1 in C Major (Presto)
track: 8 Slavonic Dances, Op. 46, B. 83: No. 2 in E Minor (Allegretto scherzando)

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

OpenTimestamps Proof of Existence
type: DigitalDocument
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1034f546d24f041c026a172f8ac93a550fc84070bc51bef640f39bd7777e6577. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509803305.
date published: 2026-06-13T12:47:07Z

Hungarian Dance No. 5 in G Minor, WoO 1, No. 5
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Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Hungarian Dance No. 6 in D flat - Orchestrated by Albert Parlow
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Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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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: Hungarian Dance No. 8 in A minor - Orchestrated by R. Schollum
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Hungarian Dance No. 10 in F - Orchestrated by Brahms
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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genre: classical
genre: german-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Hungarian Dance No. 10 in F - Orchestrated by Brahms
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8 Slavonic Dances, Op. 46, B. 83: No. 1 in C Major (Presto)
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: 8 Slavonic Dances, Op. 46, B. 83: No. 1 in C Major (Presto)
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8 Slavonic Dances, Op. 46, B. 83: No. 2 in E Minor (Allegretto scherzando)
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by artist: Budapest Festival Orchestra
by artist: Iván Fischer
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genre: classical
genre: late-romantic-era
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: 8 Slavonic Dances, Op. 46, B. 83: No. 2 in E Minor (Allegretto scherzando)
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