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album: Messiaen: Quatuor pour la fin du temps, I/22 (Live)
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album: Schoenberg: String Trio - Regamey: Quintet
album: Creation
album: Salonen: Cello Concerto & Ravel: Sonata for Violin and Cello
album: Kodály: Duo for Violin and Violoncello, Op. 7 - Dvořák: Piano Trio, Op. 90 "Dumky"
album: Sebastian Fagerlund: Cello Concerto "Nomade" & Water Atlas (Live)
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album: Beethoven: Moonlight Sonata and Other Masterpieces
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album: 'Round Midnight - Schönberg: Verklärte Nacht, Op. 4: I. Sehr langsam
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Beethoven: 12 Irish Songs, WoO 154: No. 4, The Pulse of an Irishman
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Beethoven: 7 British Songs, WoO 158b: No. 6, O Mary, Ye's Be Clad in Silk
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Beethoven: 25 Scottish Songs, Op. 108: No. 2, Sunset
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The Canticle of the Sun: III. Glorification of Life - Live
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Sonata in A Minor for Violin and Cello, M. 73: I. Allegro
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Sonata in A Minor for Violin and Cello, M. 73: II. Très vif
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Duo for Violin and Violoncello, Op. 7: I. Allegro serioso, non troppo
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Piano Trio No. 4, Op. 90 "Dumky": VI. Lento maestoso - Vivace
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Sonata No. 1 in F Major, Op. 5 No. 1: III. Allegro vivace
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Sonata No. 4 in C Major, Op. 102 No. 1: Ia. Andante
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12 Variations on "See the Conqu'ring Hero Comes" in G Major, WoO 45
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Say: Cello Sonata, 'Four Cities': I . Sivas
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  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59aa2317df5fc618a43e7d8360da49dea5160c4d42e668985ff88ec2fa9a415. 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/GBAYC1602394.
  date published: 2026-07-08T03:22:41Z
audio: Say: Cello Sonata, 'Four Cities': IV. Bodrum
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 2 Con moto
type: MusicRecording
duration: PT3M41S
duration ms: 221000
explicit: false
by artist: Leoš Janáček
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBAYC1602399
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: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1602399
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91726f1a31a91ed6a8bfdaf525b08327a135c47b830533dc6b10602d963d2b62. 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/GBAYC1602399.
  date published: 2026-07-08T08:56:20Z
audio: Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 2 Con moto
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  additional property: Valence (Positivity)
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Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 3 Allegro
type: MusicRecording
duration: PT2M38S
duration ms: 158000
explicit: false
by artist: Leoš Janáček
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBAYC1602400
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1602400
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9afc0756ac10296792c0b9c160b18f51b7b69233771651d0db6b438b8ec167. 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/GBAYC1602400.
  date published: 2026-07-08T08:56:20Z
audio: Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 3 Allegro
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Janacek: Presto for cello & piano, JW 7/6
type: MusicRecording
duration: PT2M39S
duration ms: 159000
explicit: false
by artist: Leoš Janáček
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBAYC1602401
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1602401
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
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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82323ec6c6232be8b90c6597fca746bb2070eb46a2f893b632c78a14d70be178. 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/GBAYC1602401.
  date published: 2026-07-08T03:22:41Z
audio: Janacek: Presto for cello & piano, JW 7/6
  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
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  additional property: Speechiness
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  additional property: Acousticness
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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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Say: Cello Sonata, 'Four Cities': III. Ankara
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duration: PT10M1S
duration ms: 601000
explicit: false
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44bb948511920ca28c5120502dd9f723137a7af6095ba7dc2270b36a7507e1a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAYC1602393.
  date published: 2026-07-30T14:36:16Z
audio: Say: Cello Sonata, 'Four Cities': III. Ankara
  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: 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: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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Debussy: Cello Sonata in D Minor, L. 135: No. 1 Prologue
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duration: PT4M0S
duration ms: 240493
explicit: false
by artist: Claude Debussy
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: impressionism
genre: post-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898aea65e595b554958297b07ba27faa137a772bc678db615f55df9b88db5b97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC1602395.
  date published: 2026-07-31T15:20:15Z
audio: Debussy: Cello Sonata in D Minor, L. 135: No. 1 Prologue
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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Debussy: Cello Sonata in D Minor, L. 135: No. 3 Final
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duration: PT3M21S
duration ms: 201133
explicit: false
by artist: Claude Debussy
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: impressionism
genre: post-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-31T20:22:46Z
audio: Debussy: Cello Sonata in D Minor, L. 135: No. 3 Final
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additional property: OTSVerificationAPI
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Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 1 Con moto
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duration: PT5M15S
duration ms: 315000
explicit: false
by artist: Leoš Janáček
by artist: Fazıl Say
by artist: Nicolas Altstaedt
in album: 4 Cities
  type: MusicAlbum
  date published: 2017-02-24
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3874ed9f7f992a743cf21961ecffc5f0f8aef803f15bd304ead7cdb16053d00. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBAYC1602398.
  date published: 2026-07-30T01:32:48Z
audio: Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 1 Con moto
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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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Shostakovich: Cello Sonata in D Minor, Op. 40: No. 1 Allegro non troppo
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Cello Concerto in A Minor, H. 432: III. Allegro assai
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Cello Concerto in A Major, H. 439: I. Allegro
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Cello Concerto in A Major, H. 439: II. Largo con sordini, mesto
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Cello Concerto in A Minor, H. 432: I. Allegro assai
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Cello Concerto in B-Flat Major, H. 436 : I. Allegretto
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Cello Concerto in B-Flat Major, H. 436 : II. Adagio
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Cello Concerto in A Major, H. 439: III. Allegro assai
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Cello Concerto in C Minor, Op. 43: I. Adagio
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Cello Concerto in C Minor, Op. 43: III. Allegro - Cadenza
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Cello Concerto in C Minor, Op. 43: IV. Allegro
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Cello Concerto No. 1 in E-Flat Major, Op. 107: I. Allegretto
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Cello Concerto in C Minor, Op. 43: II. Moderato - Lento
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3 Pieces for cello and piano: No. 1. Modere
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3 Pieces for cello and piano: No. 2. Sans vitesse et a l'aise
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3 Pieces for cello and piano: No. 3. Vite et nerveusement rythme
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Lied, Op. 19 (version for cello and piano)
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Cello Sonata in D Major, Op. 84: IV. Gigue: Gaiment
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Expansion, Op. 21
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Caprice, Op. 16
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Sonate en une partie in F-Sharp Minor, Op. 46
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Cello Sonata in D Major, Op. 84: I. Entree: Modere
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Cello Sonata in D Major, Op. 84: II. Gavotte en rondeau: Tranquillement
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Cello Sonata in D Major, Op. 84: III. Air: Tres lent
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Cello Concerto No. 1 in C Major, Hob. VIIb:1: I. Moderato (Cadenza by N. Atstaedt)
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Cello Concerto No. 1 in C Major, Hob. VIIb:1: II. Adagio
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Cello Concerto No. 2 in D Major, Hob. VIIb:2: II. Adagio (Cadenza by N. Altstaedt)
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Cello Concerto No. 1 in C Major, Hob. VIIb:1: III. Finale. Allegro molto
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Cello Concerto No. 2 in D Major, Hob. VIIb:2: I. Allegro moderato (Cadenza by N. Alstaedt)
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Cello Concerto No. 2 in D Major, Hob. VIIb:2: III. Allegro (Cadenza by A. Bylsma)
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Cello Concerto in A Minor, Op. 129: I. Nicht zu schnell
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Variations on a Rococo Theme for Cello & Orchestra, Op. 33
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Concerto for Cello & Wind Band: I. Ouverture
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Concerto for Cello & Wind Band: II. Idylle
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Concerto for Cello & Wind Band: IV. Menuett
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Cello Concerto in A Minor, Op. 129: II. Langsam
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Concerto for Cello & Wind Band: V. Finale: Alla Marcia
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Cello Concerto in A Minor, Op. 129: III. Sehr lebhaft
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Concerto for Cello & Wind Band: III. Cadenza
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Schönberg: Verklärte Nacht, O. 4: III. Breiter
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Schönberg: Verklärte Nacht, Op. 4: IV. Rascher
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Schönberg: Verklärte Nacht, Op. 4: VI. Im Zeitmass
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Schönberg: Verklärte Nacht, Op. 4: VIII. Sehr ruhig
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Schönberg: Verklärte Nacht, Op. 4: I. Sehr langsam
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Schönberg: Verklärte Nacht, Op. 4: II. Mit Dämpfer
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Schönberg: Verklärte Nacht, Op. 4: V. Sehr breit und langsam
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Schönberg: Verklärte Nacht, Op. 4: VII. Etwas bewegt
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track: Beethoven: 12 Irish Songs, WoO 154: No. 4, The Pulse of an Irishman
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Messiaen: Quatuor pour la fin du temps, I/22 (Live)
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Canticle of the Sun (Live)
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Schoenberg: String Trio - Regamey: Quintet
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Creation
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Salonen: Cello Concerto & Ravel: Sonata for Violin and Cello
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Kodály: Duo for Violin and Violoncello, Op. 7 - Dvořák: Piano Trio, Op. 90 "Dumky"
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Sebastian Fagerlund: Cello Concerto "Nomade" & Water Atlas (Live)
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Beethoven: Complete Works for Fortepiano and Violoncello
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Veress: String Trio - Bartók: Piano Quintet
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4 Cities
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track: Janacek: Pohádka (Fairy Tale; 'The Story of Tsar Berendyey'), JW 7/5: No. 2 Con moto
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C.P.E. Bach: 3 Cello Concertos
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Shostakovich & Weinberg: Cello Concertos
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Bach: 3 Sonatas for Viola da Gamba & Harpsichord
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Killmayer & Schumann
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Altstaedt, Nicolas - French Cello Sonatas
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track: Cello Sonata in D Major, Op. 84: IV. Gigue: Gaiment
track: Expansion, Op. 21
track: Caprice, Op. 16
track: Sonate en une partie in F-Sharp Minor, Op. 46
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Haydn: Cello Concertos Nos. 1 & 2
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Schumann: Cello Concerto, Op. 129 - Tchaikovsky: Rococo Variations - F. Gulda: Cello Concerto
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track: Concerto for Cello & Wind Band: V. Finale: Alla Marcia
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Philippe Quint plays Tchaikovsky & Arensky
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Music for Book Lovers: Classical Music for Reading
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Bach: 3 Sonatas for Viola da Gamba & Harpsichord
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track: Schönberg: Verklärte Nacht, O. 4: III. Breiter
track: Schönberg: Verklärte Nacht, Op. 4: IV. Rascher
track: Schönberg: Verklärte Nacht, Op. 4: VI. Im Zeitmass
track: Schönberg: Verklärte Nacht, Op. 4: VIII. Sehr ruhig
track: Schönberg: Verklärte Nacht, Op. 4: I. Sehr langsam
track: Schönberg: Verklärte Nacht, Op. 4: II. Mit Dämpfer
track: Schönberg: Verklärte Nacht, Op. 4: V. Sehr breit und langsam
track: Schönberg: Verklärte Nacht, Op. 4: VII. Etwas bewegt

Mozart: Oboe & Bassoon Concertos – Haydn: Sinfonia concertante
type: MusicAlbum
date published: 2015-05-31

'Round Midnight - Schönberg: Verklärte Nacht, Op. 4: I. Sehr langsam
type: MusicAlbum
date published: 2021-09-03

'Round Midnight - Merlin: Night Bridge: XI. Lever du jour
type: MusicAlbum
date published: 2021-09-17