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genre: classical piano
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album: Bartók: Piano Works
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  date published: 2021-12-03
  track: 3 Studies for Piano, Op. 18, Sz. 72: No. 1, Allegro molto
  track: 3 Studies for Piano, Op. 18, Sz. 72: No. 2, Andante sostenuto
  track: For Children, Vol. 2, Sz. 42 (Excerpts) [Original Version]: No. 29, Dinner at My House. Allegro
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  track: For Children, Vol. 1, Sz. 42 (Excerpts): No. 17, The Young Bride. Adagio [Original Version]
  track: For Children, Vol. 2, Sz. 42 (Excerpts) [Original Version]: No. 26, Dance with Me. Andante
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  track: For Children, Vol. 2, Sz. 42 (Excerpts) [Original Version]: No. 34, Evening Kiss. Andante
  track: For Children, Vol. 1, Sz. 42 (Excerpts): No. 21, Vigoroso. Allegro rubusto [Transcr. F. Ránki] [1945 Radio Version]
  track: For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]
  track: For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 65, The Old Shepherd. Molto rubato, non troppo lento
  track: For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 69, High Spirits. Allegro
  track: For Children, Vol. 3, Sz. 42 (Excerpts) [Original Version]: No. 53, Sweetheart, Wait for Me. Lento
  track: For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 78, Roses for My Sweetheart. Largo
  track: Variations on a Theme by F.F. for Piano
  track: 3 Studies for Piano, Op. 18, Sz. 72: No. 3, Rubato - Molto sostenuto
track: For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]

3 Studies for Piano, Op. 18, Sz. 72: No. 1, Allegro molto
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3 Studies for Piano, Op. 18, Sz. 72: No. 2, Andante sostenuto
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For Children, Vol. 1, Sz. 42 (Excerpts): No. 17, The Young Bride. Adagio [Original Version]
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  date published: 2026-06-13T15:41:10Z
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For Children, Vol. 2, Sz. 42 (Excerpts) [Original Version]: No. 34, Evening Kiss. 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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: For Children, Vol. 2, Sz. 42 (Excerpts) [Original Version]: No. 34, Evening Kiss. Andante
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For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 65, The Old Shepherd. Molto rubato, non troppo lento
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duration: PT1M56S
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by artist: Béla Bartók
by artist: Fülöp Ránki
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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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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 65, The Old Shepherd. Molto rubato, non troppo lento
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3 Studies for Piano, Op. 18, Sz. 72: No. 3, Rubato - Molto sostenuto
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by artist: Fülöp Ránki
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T15:39:05Z
audio: 3 Studies for Piano, Op. 18, Sz. 72: No. 3, Rubato - Molto sostenuto
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: OTSVerificationAPI
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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For Children, Vol. 1, Sz. 42 (Excerpts): No. 21, Vigoroso. Allegro rubusto [Transcr. F. Ránki] [1945 Radio Version]
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duration: PT0M49S
duration ms: 49320
explicit: false
by artist: Béla Bartók
by artist: Fülöp Ránki
in album: Bartók: Piano Works
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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
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: For Children, Vol. 1, Sz. 42 (Excerpts): No. 21, Vigoroso. Allegro rubusto [Transcr. F. Ránki] [1945 Radio Version]
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    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]
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by artist: Béla Bartók
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]
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For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 69, High Spirits. Allegro
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 69, High Spirits. Allegro
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For Children, Vol. 3, Sz. 42 (Excerpts) [Original Version]: No. 53, Sweetheart, Wait for Me. Lento
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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: For Children, Vol. 3, Sz. 42 (Excerpts) [Original Version]: No. 53, Sweetheart, Wait for Me. Lento
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For Children, Vol. 4, Sz. 42 (Excerpts) [Original Version]: No. 78, Roses for My Sweetheart. Largo
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Variations on a Theme by F.F. for Piano
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For Children, Vol. 1, Sz. 42 (Excerpts): No. 26, Dance with Me. Andante [Transcr. F. Ránki] [1945 Radio Version]
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