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genre: classical
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description: Cyprien Katsaris (; born 5 May 1951) is a French-Cypriot virtuoso pianist, teacher and composer. Amongst his teachers were Monique de la Bruchollerie, a student of Emil von Sauer, who had been a pupil
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album: Auf Flügeln Des Gesanges - Romantic Songs and Transcriptions
album: Russian Ballet Transcriptions for Four Hands and Two Pianos (World Premiere Recordings)
album: In the Mood for Energy & Power, Vol. 1: Charpentier, Mozart, Chopin, Gottschalk, Rimsky-Korsakov, Rachmaninoff... (Classical Piano Hits)
album: Papaïoannou: 24 Préludes pour piano - Constantinidis: 8 Danses des îles grecques - Levidis: Erste griechische romantische Sonate
album: Brahms: Ungarische Tänze
album: Wolfgang Amadeus Mozart: "Don Juan" ("Don Giovanni") In Transcription For Piano Solo By Georges Bizet
album: Chopin's Epoque
album: Hope For an Ideal Ocean (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
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album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
album: Transcriptions by Karol A. Penson (World Premiere Recordings)
album: Grande fantaisie sur Zorba, une rhapsodie Grecque (World Premiere Recordings)
album: In the Mood for Love & Passion, Vol. 4: Rubinstein, Scriabin, Rachmaninoff, Poulenc, Weill, Khachaturian... (Classical Piano Hits)
album: In the Mood for Love & Passion, Vol. 3: Méreaux, Mendelssohn, Schumann, Dvořák, Kreisler, Gershwin... (Classical Piano Hits)
album: In the Mood for Love & Passion, Vol. 2: Beethoven, Schubert, Chopin, Grieg, Vladigerov, Rodrigo, Katsaris... (Classical Piano Hits)
album: In the Mood for Love & Passion, Vol. 1: Liszt, Fauré, Albéniz, Bortkiewicz, Addinsell, Piazzolla... (Classical Piano Hits)
album: In the Mood for Meditation & Zen, Vol. 5: Händel, Gluck, Beethoven, Liszt, Grieg, Debussy... (Classical Piano Hits)
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album: In the Mood for Energy & Power, Vol. 2: Bach, Händel, Beethoven, De Falla, Campos, Stravinsky... (Classical Piano Hits)
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album: In the Mood for Meditation & Zen, Vol. 3: Albinoni, Mozart, Schubert, Gounod, Grieg, Boulez... (Classical Piano Hits)
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album: In the Mood for Meditation & Zen, Vol. 1: Pachelbel, Bach, Borodin, Massenet, Strauss, Rachmaninoff... (Classical Piano Hits)
album: In the Mood for Waltzes, Vol. 3: Diabelli, Glinka, Schumann, Strauss II, Tchaikovsky, Bortkiewicz... (Classical Piano Hits)
album: In the Mood for Waltzes, Vol. 2: Schubert, Liszt, Grieg, Rolón, Poulenc, Khachaturian... (Classical Piano Hits)
album: In the Mood for Waltzes, Vol. 1: Chopin, Brahms, Delibes, Rachmaninoff, Shostakovich, Katsaris... (Classical Piano Hits)
album: Harp Meets Piano
album: Elective Affinities - Die Wahlverwandtschaften (World Premiere Recordings)
album: Grieg: Concerto & Piano Works (Cyprien Katsaris Archives)
album: Cyprien Katsaris Presents Katrin Hagen (Brahms, Saint-Saëns & Crusell)
album: Si la poésie m'était chantée: Œuvres pour voix d'alto, alto et piano (World Premiere Recordings)
album: 111 Piano Hits - Vol. 5 (World Premiere Recordings)
album: 111 Piano Hits - Vol. 4 (World Premiere Recordings)
album: 111 Piano Hits - Vol. 3 (World Premiere Recordings)
album: 111 Piano Hits - Vol. 2 (World Premiere Recordings)
album: 111 Piano Hits - Vol. 1
album: Schubert: 6 Moments musicaux D. 780, Sonata in A Major D. 664 & Tänze

5 Klavierstücke, S. 192: No. 4 in F-Sharp Major
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3 Gymnopédies: No. 1
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Peer Gynt Suite No. 1, Op. 46: Morning Mood - Arr. for Piano
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Carmen: Habanera. "L'amour est un oiseau rebelle" (Carmen) - Arr. for Piano, World Premiere Recording
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Solfeggietto in C Minor, H. 220
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6 Moments musicaux, Op. 94, D. 780: No. 3 in F Minor, Allegro moderato
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Auf Flügeln Des Gesanges - Romantic Songs and Transcriptions
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Russian Ballet Transcriptions for Four Hands and Two Pianos (World Premiere Recordings)
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In the Mood for Energy & Power, Vol. 1: Charpentier, Mozart, Chopin, Gottschalk, Rimsky-Korsakov, Rachmaninoff... (Classical Piano Hits)
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Papaïoannou: 24 Préludes pour piano - Constantinidis: 8 Danses des îles grecques - Levidis: Erste griechische romantische Sonate
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Brahms: Ungarische Tänze
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Hope For an Ideal Ocean (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
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Saint-Saëns: Original Works and Transcriptions for Solo Piano (Le carnaval des animaux, Organ Symphony, Danse macabre, Piano Concerto No. 2, L'assassinat du duc de Guise)
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Opera Songs For Piano
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    value: https://explorer.copyrightchains.com/tx/0x9aed2e680567f04eb32c228eda9c35552d2c9de5706d17805f069d83e87ea9a6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800605
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aed2e680567f04eb32c228eda9c35552d2c9de5706d17805f069d83e87ea9a6. 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/GBAYC1800605.
    date published: 2026-07-08T03:20:19Z
  audio: Brahms: 16 Waltzes, Op. 39: No. 3 in G-Sharp Minor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.234
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.453
    additional property: Energy
      type: PropertyValue
      value: 0.025
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.976
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.973
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.301
    additional property: Loudness (dB)
      type: PropertyValue
      value: -32.411
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Brahms: 16 Waltzes, Op. 39: No. 6 in C-Sharp Major
  type: MusicRecording
  duration: PT1M2S
  duration ms: 62253
  explicit: false
  by artist: Johannes Brahms
  by artist: Cyprien Katsaris
  by artist: Hélène Mercier
  in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
    type: MusicAlbum
    date published: 2018-08-24
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  isrc code: GBAYC1800607
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T20:28:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9e284b7fc959c6339ead0d36ad55f6abe309e14e8e997bff2611299f2ba2a0a5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800607
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e284b7fc959c6339ead0d36ad55f6abe309e14e8e997bff2611299f2ba2a0a5. 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/GBAYC1800607.
    date published: 2026-07-08T03:53:27Z
  audio: Brahms: 16 Waltzes, Op. 39: No. 6 in C-Sharp Major
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.102
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.51
    additional property: Energy
      type: PropertyValue
      value: 0.207
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.945
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.734
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.368
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Brahms: 21 Hungarian Dances, WoO 1: No. 5 in F-Sharp Minor
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127386
  explicit: false
  by artist: Johannes Brahms
  by artist: Cyprien Katsaris
  by artist: Hélène Mercier
  in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
    type: MusicAlbum
    date published: 2018-08-24
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  isrc code: GBAYC1800610
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Brahms: 21 Hungarian Dances, WoO 1: No. 5 in F-Sharp Minor
track: Brahms: 21 Hungarian Dances, WoO 1: No. 6 in D-Flat Major
track: Brahms: 21 Hungarian Dances, WoO 1: No. 8 in A Minor
track: Brahms: 16 Waltzes, Op. 39: No. 7 in C-Sharp Minor
track: Brahms: 21 Hungarian Dances, WoO 1: No. 9 in E Minor
track: Brahms: 16 Waltzes, Op. 39: No. 15 in A Major
track: Brahms: 16 Waltzes, Op. 39: No. 1 in B Major

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-25T23:43:02+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x1909759f4177e18af69448bbc7fd4b13823fef7b7235c07e002fd2bab24ff27b

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956351

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956351

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800610

OTSTimestamp
type: PropertyValue
value: 2026-07-02T11:38:34Z

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 0x1909759f4177e18af69448bbc7fd4b13823fef7b7235c07e002fd2bab24ff27b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800610.
date published: 2026-07-02T11:38:34Z

Brahms: 21 Hungarian Dances, WoO 1: No. 5 in F-Sharp Minor
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 101.059
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.352
additional property: Energy
  type: PropertyValue
  value: 0.141
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.967
additional property: Instrumentalness
  type: PropertyValue
  value: 0.943
additional property: Liveness
  type: PropertyValue
  value: 0.081
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.255
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.709
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Brahms: 21 Hungarian Dances, WoO 1: No. 6 in D-Flat Major
type: MusicRecording
duration: PT3M5S
duration ms: 185826
explicit: false
by artist: Johannes Brahms
by artist: Cyprien Katsaris
by artist: Hélène Mercier
in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
  type: MusicAlbum
  date published: 2018-08-24
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: GBAYC1800611
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:56:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6eb9334a50319b3c44f18f558ac3c3b68279706254af9000bc7540974db44bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eb9334a50319b3c44f18f558ac3c3b68279706254af9000bc7540974db44bc. 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/GBAYC1800611.
  date published: 2026-07-08T08:56:20Z
audio: Brahms: 21 Hungarian Dances, WoO 1: No. 6 in D-Flat Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.772
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.453
  additional property: Energy
    type: PropertyValue
    value: 0.199
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.048
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.368
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.474
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: 21 Hungarian Dances, WoO 1: No. 8 in A Minor
type: MusicRecording
duration: PT2M38S
duration ms: 158120
explicit: false
by artist: Johannes Brahms
by artist: Cyprien Katsaris
by artist: Hélène Mercier
in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
  type: MusicAlbum
  date published: 2018-08-24
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: GBAYC1800613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:41:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41ecfb3df6f03410c1394a6e546f77efeb9edaa7444074dbefffeaa68034065d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800613
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ecfb3df6f03410c1394a6e546f77efeb9edaa7444074dbefffeaa68034065d. 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/GBAYC1800613.
  date published: 2026-07-08T08:56:20Z
audio: Brahms: 21 Hungarian Dances, WoO 1: No. 8 in A Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.665
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.43
  additional property: Energy
    type: PropertyValue
    value: 0.192
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.892
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.3
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.046
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Brahms: 16 Waltzes, Op. 39: No. 7 in C-Sharp Minor
type: MusicRecording
duration: PT2M18S
duration ms: 138720
explicit: false
by artist: Johannes Brahms
by artist: Cyprien Katsaris
by artist: Hélène Mercier
in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
  type: MusicAlbum
  date published: 2018-08-24
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: GBAYC1800614
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:44:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21947b80d575fa46bfc002f82dfe76856e70249de3e0daad92626786a033f68f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800614
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21947b80d575fa46bfc002f82dfe76856e70249de3e0daad92626786a033f68f. 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/GBAYC1800614.
  date published: 2026-07-08T03:53:27Z
audio: Brahms: 16 Waltzes, Op. 39: No. 7 in C-Sharp Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.172
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.971
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.063
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.807
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Brahms: 21 Hungarian Dances, WoO 1: No. 9 in E Minor
type: MusicRecording
duration: PT1M50S
duration ms: 110480
explicit: false
by artist: Johannes Brahms
by artist: Cyprien Katsaris
by artist: Hélène Mercier
in album: Brahms: 21 Hungarian Dances & 16 Waltzes for Piano Four Hands
  type: MusicAlbum
  date published: 2018-08-24
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: GBAYC1800618
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:59:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c825a0e5982b3347d586de582b49e0ff6f64fff1f7c6ca5c892d1d367033427
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1800618
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c825a0e5982b3347d586de582b49e0ff6f64fff1f7c6ca5c892d1d367033427. 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/GBAYC1800618.
  date published: 2026-07-08T03:20:19Z
audio: Brahms: 21 Hungarian Dances, WoO 1: No. 9 in E Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.448
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.447
  additional property: Energy
    type: PropertyValue
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Transcriptions by Karol A. Penson (World Premiere Recordings)
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Grande fantaisie sur Zorba, une rhapsodie Grecque (World Premiere Recordings)
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In the Mood for Love & Passion, Vol. 4: Rubinstein, Scriabin, Rachmaninoff, Poulenc, Weill, Khachaturian... (Classical Piano Hits)
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In the Mood for Love & Passion, Vol. 3: Méreaux, Mendelssohn, Schumann, Dvořák, Kreisler, Gershwin... (Classical Piano Hits)
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date published: 2017-02-16

In the Mood for Love & Passion, Vol. 2: Beethoven, Schubert, Chopin, Grieg, Vladigerov, Rodrigo, Katsaris... (Classical Piano Hits)
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date published: 2017-02-15

In the Mood for Love & Passion, Vol. 1: Liszt, Fauré, Albéniz, Bortkiewicz, Addinsell, Piazzolla... (Classical Piano Hits)
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date published: 2017-02-15

In the Mood for Meditation & Zen, Vol. 5: Händel, Gluck, Beethoven, Liszt, Grieg, Debussy... (Classical Piano Hits)
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date published: 2017-02-14

In the Mood for Energy & Power, Vol. 4: Brahms, Grieg, Scriabin, Bortkiewicz, Prokofiev, Khachaturian... (Classical Piano Hits)
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date published: 2017-02-13

In the Mood for Energy & Power, Vol. 3: C.P.E. Bach, Diabelli, Schubert, Schumann, Liszt, Tchaikovsky, Orff... (Classical Piano Hits)
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date published: 2017-02-13

In the Mood for Energy & Power, Vol. 2: Bach, Händel, Beethoven, De Falla, Campos, Stravinsky... (Classical Piano Hits)
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date published: 2017-02-13

In the Mood for Meditation & Zen, Vol. 4: Vivaldi, Brahms, Fauré, Satie, Ravel, Khachaturian... (Classical Piano Hits)
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In the Mood for Meditation & Zen, Vol. 3: Albinoni, Mozart, Schubert, Gounod, Grieg, Boulez... (Classical Piano Hits)
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In the Mood for Meditation & Zen, Vol. 2: Chopin, Schumann, Wagner, Saint-Saëns, Tchaikovsky, Mahler... (Classical Piano Hits)
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In the Mood for Meditation & Zen, Vol. 1: Pachelbel, Bach, Borodin, Massenet, Strauss, Rachmaninoff... (Classical Piano Hits)
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In the Mood for Waltzes, Vol. 3: Diabelli, Glinka, Schumann, Strauss II, Tchaikovsky, Bortkiewicz... (Classical Piano Hits)
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In the Mood for Waltzes, Vol. 2: Schubert, Liszt, Grieg, Rolón, Poulenc, Khachaturian... (Classical Piano Hits)
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In the Mood for Waltzes, Vol. 1: Chopin, Brahms, Delibes, Rachmaninoff, Shostakovich, Katsaris... (Classical Piano Hits)
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Harp Meets Piano
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Elective Affinities - Die Wahlverwandtschaften (World Premiere Recordings)
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Grieg: Concerto & Piano Works (Cyprien Katsaris Archives)
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Cyprien Katsaris Presents Katrin Hagen (Brahms, Saint-Saëns & Crusell)
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Si la poésie m'était chantée: Œuvres pour voix d'alto, alto et piano (World Premiere Recordings)
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111 Piano Hits - Vol. 5 (World Premiere Recordings)
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Plaisir d'amour - Arr. for Piano, World Premiere Recording
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The Nutcracker, Op. 71: Waltz of the Flowers - Arr. for Piano, World Premiere Recording
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Concierto de Aranjuez: II. Adagio. Aranjuez, ma pensée - Arr. for Piano, World Premiere Recording
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West Side Story: Jets - Arr. for Piano
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Bachianas Brasileiras No. 5, W390: Aria. Cantilena - Arr. for Piano, World Premiere Recording
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audio: Bachianas Brasileiras No. 5, W390: Aria. Cantilena - Arr. for Piano, World Premiere Recording
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La Misma Pena - World Premiere Recording
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  date published: 2026-07-08T03:53:27Z
audio: La Misma Pena - World Premiere Recording
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Adiós
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  date published: 2026-07-08T03:20:19Z
audio: Adiós
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111 Piano Hits - Vol. 4 (World Premiere Recordings)
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date published: 2014-11-15

111 Piano Hits - Vol. 3 (World Premiere Recordings)
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date published: 2014-11-15
track: Carmina Burana, Fortuna Imperatrix Mundi: O fortuna - Fortune plango vulnera - Arr. for Piano
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    date published: 2026-07-08T03:20:19Z
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111 Piano Hits - Vol. 2 (World Premiere Recordings)
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track: Hungarian Rhapsodies, S. 244, No. 2 in C-Sharp Minor
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track: Carmen: Habanera. "L'amour est un oiseau rebelle" (Carmen) - Arr. for Piano, World Premiere Recording
track: L'arlésienne, Suite No. 2: Farandole - Arr. for Piano, World Premiere Recording
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111 Piano Hits - Vol. 1
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date published: 2014-11-15
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Tales from the Vienna Woods, Op. 325 - Arr. for Piano
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Thais: Meditation - Arr. for Piano
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Etudes, Op. 10: No. 12 in C Minor "Revolutionary"
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Suite in D Minor, HWV 437: III, Sarabande - Arr. for Piano
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