Annie Fischer
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genre: classical
genre: classical piano
description: Annie Fischer (July 5, 1914April 10, 1995) was a Hungarian classical pianist. Biography Fischer was born into a Jewish family in Budapest and studied at the Franz Liszt Academy of Music with Ernő Doh
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album: More Piano Giants: Annie Fischer, Vol. 8 (1958)
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  date published: 2019-03-15
album: Prague Spring Festival Gold Edition:, Vol. 1 (Live)
  type: MusicAlbum
  date published: 2019-11-01
album: Schumann: Piano Sonata No. 1 - Schubert: 4 Impromptus D. 935
  type: MusicAlbum
  date published: 2024-03-08
album: Beethoven: Piano Sonatas Nos. 19, 15 "Pastoral", 30 & 32
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  date published: 2022-04-22
album: Mozart: Piano Concertos Nos. 20, 21, 22, 23
  type: MusicAlbum
  date published: 2021-03-24
album: Secrets (Live)
  type: MusicAlbum
  date published: 2020-09-11
album: More Piano Giants: Annie Fischer, Vol. 8 (1958)
  type: MusicAlbum
  date published: 2019-03-15
album: Proms Music 2016, Vol. 9
  type: MusicAlbum
  date published: 2016-09-02
album: Wolfgang Amadeus Mozart: Piano Concertos Nos. 20 & 22, Rondo, K. 382 - Franz Schubert: Impromptu, D. 935 No. 4
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  date published: 2016-09-01
album: Wolfgang Amadeus Mozart: Piano Concertos Nos. 21 & 23 - Béla Bartók: Piano Concerto No. 3
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  date published: 2016-03-01
album: Bartók: Piano Concerto No. 3, Sz. 119 - Tchaikovsky: Symphony No. 6 in B Minor, Op. 74
  type: MusicAlbum
  date published: 2016-01-01
album: Lucerne Festival Historic Performances: Annie Fischer & Leon Fleisher
  type: MusicAlbum
  date published: 2015-10-16
album: Annie Fischer: The Centennial Collection
  type: MusicAlbum
  date published: 2015-07-01
album: Beethoven: Piano Concerto No. 3 / Mozart: Rondos in D Major & A Major
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  date published: 2015-02-16
album: Ludwig van Beethoven: The Complete Piano Sonatas
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  date published: 2014-11-01
  track: Piano Sonata No. 32 in C Minor, Op. 111: II. Arietta. Adagio molto semplice e cantabile
  track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": IV. Allegro
  track: Piano Sonata No. 3 in C Major, Op. 2, No. 3: I. Allegro con brio
  track: Piano Sonata No. 6 in F Major, Op. 10 No. 2: II. Allegretto
  track: Piano Sonata No. 1 in F Minor, Op. 2, No. 1: I. Allegro
  track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazioni
  track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
  track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": II. Scherzo. Allegro molto
  track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
  track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": III. Marcia funebre sulla morte d'un eroe
  track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
  track: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": I. Allegro
  track: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": III. Adagio sostenuto
  track: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
  track: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": IV. Largo - Allegro risoluto
  track: Piano Sonata No. 31 in A-Flat Major, Op. 110: II. Allegro molto
  track: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga. Allegro ma non troppo
  track: Piano Sonata No. 13 in E-Flat Major, Op. 27 No. 1 "Quasi una fantasia": I. Andante
album: Encore: In Concert (Live)
  type: MusicAlbum
  date published: 2014-10-07
album: The Essential Collection
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  date published: 2014-09-02
album: Schubert: Piano Sonata No. 21 / Liszt: Piano Sonata in B Minor
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  date published: 2014-07-15
album: Mozart: Piano Concertos Nos. 21 and 22 / Rondo, K. 382
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  date published: 2014-07-15
album: Beethoven: Symphonies Nos. 5, 7, 8 and 9 / Piano Concerto No. 3 / Violin Concerto in D Major
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  date published: 2014-07-15
album: Beethoven: Piano Concerto No. 3 / Mozart: Prelude and Fugue, K 394 / Schubert: Impomptu No. 5
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 9: Nos. 11, 19, 22, 25, and 26
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 8: Nos. 4, 5, and 21
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 7: Nos. 2, 16, 24, and 30
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 6: Nos. 15, 17 and 23
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 5: Nos. 9, 14, 28, and 29
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 4: Nos. 18 and 29
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 3: Nos. 7, 10, 20 and 32
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 2: Nos. 1, 3, and 8
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  date published: 2014-07-15
album: Beethoven: Complete Piano Sonatas, Vol. 1: Nos. 6, 12, 13, and 31
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  date published: 2014-07-15
album: Beethoven: Piano Sonata No. 30, Annie Fischer vs. Ernst Levy (Compare 2 Versions)
  type: MusicAlbum
  date published: 2014-06-09
album: Beethoven: Piano Concerto No. 3, Annie Fischer vs. Lili Kraus (Compare 2 Versions)
  type: MusicAlbum
  date published: 2014-06-09
album: Beethoven: Piano Sonata No. 8 "Pathetic", Wilhelm Backhaus vs. Annie Fischer (Compare 2 Versions)
  type: MusicAlbum
  date published: 2014-05-15
album: Mozart: Piano Concerto No. 22, Geza Anda vs. Annie Fischer (Compare 2 Versions)
  type: MusicAlbum
  date published: 2014-04-10
album: Mozart: Piano Concerto No. 21, Geza Anda vs. Annie Fischer (Compare 2 Versions)
  type: MusicAlbum
  date published: 2014-04-10
album: Annie Fischer Play Liszt & Brahms (Live)
  type: MusicAlbum
  date published: 2014-03-10
album: Mozart: Piano Concertos 21 & 22
  type: MusicAlbum
  date published: 2013-12-02
album: Mozart, Vol. 9 : Concertos K467
  type: MusicAlbum
  date published: 2012-02-24
album: Mozart: Piano Concertos No. 21 and No. 22
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  date published: 2011-09-12
album: Mozart: Piano Concertos 20 and 23
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  date published: 2011-08-01
album: Mozart:Piano Concertos, C major K.467 & E flat major K.482 (Remastered)
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  date published: 2011-05-08
album: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482 - Schumann: Piano Concerto in A Minor, Op. 54
  type: MusicAlbum
  date published: 2016-09-09
track: Piano Concerto No. 21 in C Major, K. 467: II. Andante
track: Mozart: Piano Concerto No. 20 in D Minor, K. 466: II. Romance (Excerpt)
track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante

Piano Sonata No. 32 in C Minor, Op. 111: II. Arietta. Adagio molto semplice e cantabile
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Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": IV. Allegro
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Piano Sonata No. 3 in C Major, Op. 2, No. 3: I. Allegro con brio
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Piano Sonata No. 6 in F Major, Op. 10 No. 2: II. Allegretto
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  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd581f4f8b61d0014338656bec04fdd8d06efe891b7a7d419f1f282da553d3c5. 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/HUA253162606.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 6 in F Major, Op. 10 No. 2: II. Allegretto
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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Piano Sonata No. 1 in F Minor, Op. 2, No. 1: I. Allegro
type: MusicRecording
duration: PT3M40S
duration ms: 220533
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: HUA253162708
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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  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/HUA253162708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303e02efc0f8d9359601bc392d7a047c1fa11242484dd40f52bdb9fc6c358153. 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/HUA253162708.
  date published: 2026-07-08T08:56:20Z
audio: Piano Sonata No. 1 in F Minor, Op. 2, No. 1: I. Allegro
  type: AudioObject
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  additional property: Musical Key
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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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Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazioni
type: MusicRecording
duration: PT7M38S
duration ms: 458200
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0963124b208c319def7d0e8d0c1403ca8f144154361951c65b388b5bb2c0a9a. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/HUA253162601.
  date published: 2026-07-31T02:51:48Z
audio: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazioni
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.864
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.099
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.839
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HUA253162601
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960337
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T02:51:48+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253162601
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
type: MusicRecording
duration: PT8M32S
duration ms: 512000
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1421cd7665090275196c37a662b5d6050b411288470ad38457a230676cd2a03. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/HUA253162701.
  date published: 2026-07-30T17:23:26Z
audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave - Allegro di molto e con brio
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 103.666
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.407
  additional property: Energy
    type: PropertyValue
    value: 0.306
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.898
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.073
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.163
  additional property: Key Name
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    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: HUA253162701
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960284
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253162701
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": II. Scherzo. Allegro molto
type: MusicRecording
duration: PT2M47S
duration ms: 167973
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7170dca0441adfc98b62b2c85e41e1638f7928ad3db5a82fe2550f5717ee8c74. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUA253162602.
  date published: 2026-07-31T17:29:52Z
audio: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": II. Scherzo. Allegro molto
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  additional property: Tempo (BPM)
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    value: 146.81
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.427
  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
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.343
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.321
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HUA253162602
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253162602
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
type: MusicRecording
duration: PT5M8S
duration ms: 308466
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a42d2c1d626de93e5c008d96067cabf4a37c038e3a58c9c022e6d28f27b9aa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HUA253162702.
  date published: 2026-07-30T15:42:38Z
audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 107.905
  additional property: Musical Key
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    value: 8
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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isrc code: HUA253162702
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  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/960273
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": III. Marcia funebre sulla morte d'un eroe
type: MusicRecording
duration: PT6M33S
duration ms: 393333
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9547d84f24fc12903394d0fc49a948fb193b1eef4f5d0ff3a01fda8c3545f7d7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HUA253162603.
  date published: 2026-08-01T01:44:32Z
audio: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": III. Marcia funebre sulla morte d'un eroe
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 142.113
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.498
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.83
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
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isrc code: HUA253162603
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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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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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253162603
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
type: MusicRecording
duration: PT4M38S
duration ms: 278293
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
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  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:46:00Z
audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
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additional property: OTSVerifyInstructions
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Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": I. Allegro
type: MusicRecording
duration: PT11M4S
duration ms: 664693
explicit: false
by artist: Ludwig van Beethoven
by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:40:43Z
audio: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": I. Allegro
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additional property: OTSVerifyInstructions
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Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": III. Adagio sostenuto
type: MusicRecording
duration: PT19M51S
duration ms: 1191360
explicit: false
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by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T21:25:57Z
audio: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": III. Adagio sostenuto
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additional property: OTSVerifyInstructions
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Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
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duration: PT6M21S
duration ms: 381666
explicit: false
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by artist: Annie Fischer
in album: Ludwig van Beethoven: The Complete Piano Sonatas
  type: MusicAlbum
  date published: 2014-11-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T01:44:32Z
audio: Piano Sonata No. 31 in A-Flat Major, Op. 110: I. Moderato cantabile molto espressivo
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Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": IV. Largo - Allegro risoluto
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duration: PT11M24S
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genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Piano Sonata No. 29 in B-Flat Major, Op. 106 "Hammerklavier": IV. Largo - Allegro risoluto
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Piano Sonata No. 31 in A-Flat Major, Op. 110: II. Allegro molto
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genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Piano Sonata No. 31 in A-Flat Major, Op. 110: II. Allegro molto
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Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga. Allegro ma non troppo
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genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
audio: Piano Sonata No. 31 in A-Flat Major, Op. 110: III. Adagio ma non troppo - Fuga. Allegro ma non troppo
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Piano Sonata No. 13 in E-Flat Major, Op. 27 No. 1 "Quasi una fantasia": I. Andante
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Mozart: Piano Concerto No. 20 in D Minor, K. 466: II. Romance (Excerpt)
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch