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  track: Piano Concerto No. 1 in C Major, Op. 15: II. Largo
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  track: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato (1)
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor Concerto": I. Allegro
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Sonate Pathetique, Op. 13: II. Adagio
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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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/NLY331308827
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 0xe3be9815b38570a6b73027ca73a6c49769edd9c65d078ef54c30fda34930d5da. 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/NLY331308827.
  date published: 2026-07-08T08:56:20Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.057
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.282
  additional property: Energy
    type: PropertyValue
    value: 0.034
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.793
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.062
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.746
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sleep Music
type: MusicAlbum
date published: 2022-12-14
track: Death in Venice
  type: MusicRecording
  duration: PT2M19S
  duration ms: 139391
  explicit: false
  by artist: Gustav Mahler
  by artist: Junge Deutsche Philharmonie
  by artist: Rudolf Barshai
  in album: Sleep Music
    type: MusicAlbum
    date published: 2022-12-14
  popularity: 6
  genre: classical
  genre: orchestra
  isrc code: NLY332202308
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T02:22:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb98479860b3281f4295c0cf551f9326605bf4768e88016ecefca821cda310599
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956894
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956894
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202308
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:53:57Z
  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 0xb98479860b3281f4295c0cf551f9326605bf4768e88016ecefca821cda310599. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202308.
    date published: 2026-07-06T07:53:57Z
  audio: Death in Venice
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.093
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.199
    additional property: Energy
      type: PropertyValue
      value: 0.013
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.96
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.92
    additional property: Liveness
      type: PropertyValue
      value: 0.222
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -37.586
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Enfantillages pittoresques: II. Berceuse
  type: MusicRecording
  duration: PT1M17S
  duration ms: 77266
  explicit: false
  by artist: Erik Satie
  by artist: Cristina Ariagno
  in album: Sleep Music
    type: MusicAlbum
    date published: 2022-12-14
  popularity: 5
  genre: classical
  genre: classical-piano
  genre: impressionism
  isrc code: NLY331011539
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T06:57:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x93d1d2a9e294afdd3ec6aad7e60bfba9320fa5e1c884a966531d742aabe8f1de
  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/NLY331011539
  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 0x93d1d2a9e294afdd3ec6aad7e60bfba9320fa5e1c884a966531d742aabe8f1de. 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/NLY331011539.
    date published: 2026-07-08T03:20:19Z
  audio: Enfantillages pittoresques: II. Berceuse
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.562
    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: 0.433
    additional property: Energy
      type: PropertyValue
      value: 0.002
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.958
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.473
    additional property: Loudness (dB)
      type: PropertyValue
      value: -45.933
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Heavenly Romanticism
  type: MusicRecording
  duration: PT1M2S
  duration ms: 62837
  explicit: false
  by artist: Béla Bartók
  by artist: Klára Würtz
  by artist: Janáček Philharmonic Orchestra
  by artist: Theodore Kuchar
  in album: Sleep Music
    type: MusicAlbum
    date published: 2022-12-14
  popularity: 41
  isrc code: NLY332202311
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T05:14:29+00:00
  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: Heavenly Romanticism
track: River Flows in You
track: Symphonic Art
track: Melancholy of France
track: Spiritual Fantasy
track: Meditating Orchestra
track: Russian Romance

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6e2272d9d32395d0d00c679c62eb87ee60a1e5040cc909efe782d727f905e60c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953528

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332202311

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

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 0x6e2272d9d32395d0d00c679c62eb87ee60a1e5040cc909efe782d727f905e60c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLY332202311.
date published: 2026-06-13T15:41:10Z

Heavenly Romanticism
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.261
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.217
additional property: Energy
  type: PropertyValue
  value: 0.003
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.927
additional property: Instrumentalness
  type: PropertyValue
  value: 0.988
additional property: Liveness
  type: PropertyValue
  value: 0.32
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.037
additional property: Loudness (dB)
  type: PropertyValue
  value: -39.73
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

River Flows in You
type: MusicRecording
duration: PT3M30S
duration ms: 210841
explicit: false
by artist: Yiruma
by artist: Jeroen van Veen
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 5
genre: neo-classical
genre: new-age-piano
genre: korean-instrumental
isrc code: NLY332001446
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:22:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d5d6cc89b5ee92fa75810350dfc456286b84cf4389824e266e1851f4392b640
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332001446
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x3d5d6cc89b5ee92fa75810350dfc456286b84cf4389824e266e1851f4392b640. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLY332001446.
  date published: 2026-06-13T15:41:10Z
audio: River Flows in You
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.674
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.407
  additional property: Energy
    type: PropertyValue
    value: 0.141
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.103
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.488
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphonic Art
type: MusicRecording
duration: PT2M36S
duration ms: 156667
explicit: false
by artist: Ludwig van Beethoven
by artist: Staatskapelle Dresden
by artist: Herbert Blomstedt
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLY332202316
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:54:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40696f442c879621996c05356f05cef435c4373f5d14d49951365337c4740d4f
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/NLY332202316
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 0x40696f442c879621996c05356f05cef435c4373f5d14d49951365337c4740d4f. 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/NLY332202316.
  date published: 2026-07-08T03:53:27Z
audio: Symphonic Art
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.753
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.08
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.829
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.723
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Melancholy of France
type: MusicRecording
duration: PT3M52S
duration ms: 232764
explicit: false
by artist: Maurice Ravel
by artist: Klára Würtz
by artist: Janáček Philharmonic Orchestra
by artist: Theodore Kuchar
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 3
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: NLY332202319
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:05:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8daaf93a1c6b961db7a7d39db77c8291a592becaad018d1b8900b533b68b8121
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/NLY332202319
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 0x8daaf93a1c6b961db7a7d39db77c8291a592becaad018d1b8900b533b68b8121. 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/NLY332202319.
  date published: 2026-07-08T03:53:27Z
audio: Melancholy of France
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.671
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.888
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.196
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Spiritual Fantasy
type: MusicRecording
duration: PT3M7S
duration ms: 187544
explicit: false
by artist: Frédéric Chopin
by artist: Paolo Giacometti
by artist: Rotterdam Young Philharmonic
by artist: Arie Van Beek
in album: Sleep Music
  type: MusicAlbum
  date published: 2022-12-14
popularity: 4
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: NLY332202321
additional property: CopyrightID
additional property: CopyrightStatus
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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: 2026-07-08T03:20:19Z
audio: Spiritual Fantasy
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Meditating Orchestra
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duration: PT2M58S
duration ms: 178676
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by artist: Anton Bruckner
by artist: Rundfunk-Sinfonieorchester Berlin
by artist: Heinz Rögner
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popularity: 5
genre: classical
genre: orchestra
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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: Meditating Orchestra
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Russian Romance
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duration ms: 123467
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by artist: Sergei Rachmaninoff
by artist: Klára Würtz
by artist: Ukraine National Symphony Orchestra
by artist: Vladimir Sirenko
in album: Sleep Music
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popularity: 7
genre: classical
genre: classical-piano
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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: 2026-07-08T03:53:27Z
audio: Russian Romance
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Heroic Beethoven
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100 Best of Beethoven
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Romantic Era Classics
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date published: 2019-04-01
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  by artist: Axel Gillison
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  genre: classical-piano
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:30:09Z
  audio: Kinderszenen, Op. 15: VII. Träumerei
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Classical Chill Out
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date published: 2009-01-13

The 99 Most Essential Pieces of the Romantic Era
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date published: 2009-01-13

Classical Music for Reading
type: MusicAlbum
date published: 2022-07-29
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  by artist: Derek Han
  by artist: St. Petersburg Philharmonic Orchestra
  by artist: Paul Freeman
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Piano Concerto No. 2 in G Major, Op. 44: II. Andante non troppo
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    additional property: Loudness (dB)
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track: Sonate Pathetique, Op. 13: II. Adagio
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  by artist: Ludwig van Beethoven
  by artist: Misha Goldstein
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    type: MusicAlbum
    date published: 2022-07-29
  popularity: 8
  genre: classical
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Sonate Pathetique, Op. 13: II. Adagio
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track: Rêverie, L. 68
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  by artist: Misha Goldstein
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405740

OTSTimestamp
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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 0x4ba5d4e55a91a8b29273a2a6584191e310104ce0fe89090f1127ef7f29f84738. 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/NLY331405740.
date published: 2026-07-08T03:20:19Z

Rêverie, L. 68
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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3 Gymnopédies: I. Lent et douloureux
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Piano Concerto in A Minor, Op. 16: II. Adagio
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Deux Nocturnes, Op. 32: II. Lento
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Beethoven in Love
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Beethoven: Piano Concerto No. 5
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Beethoven: Piano Concerto No. 4
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Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato (6)
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Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato (7)
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Piano Concerto No. 4 in G Major, Op. 58: III. Rondo. Vivace (1)
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Klavierkonzert Schumann
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111 Amazing Classical: Reading Music
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111 Amazing Classical: Study Music
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100 Pieces of Classical Music For Your Brain
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track: Concerto No. 1 in E-Flat Major for Piano and Orchestra, S. 124: II. Quasi adagio
track: Slåtter (Norwegian Peasant Dances), Op. 72: Bruremarsch fra Telemarken (Bridal March from Telemark)
track: Concerto in E-Flat Major for Trumpet and Orchestra, Hob. VIIe: III. Finale: Allegro
track: Moments musicaux, D. 780: Air Russe in F Minor: Allegro moderato
track: Messiah, HWV 56: Hallelujah Chorus
track: Syrinx for Solo Flute, L 129
track: Le carnaval des animaux (The Carnival of the Animals): Le cygne (The Swan)
track: Concerto No. 1 in B-Flat Minor for Piano and Orchestra, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
track: String Quartet No. 2 in D Major: IV. Finale: Andante - Vivace
track: Fantasy Pieces, Op. 12: Des Abends (The Evening)
track: Concerto No. 2 in D Major for Cello and Orchestra, G. 479: III. Allegro vivo
track: Pomp and Circumstance, Op. 39: Land of Hope and Glory
track: Symphony No. 29 in A Major, K. 201: I. Allegro moderato
track: Prelude and Fugue in A Minor, BWV 543
track: Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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track: Symphony No. 5 in B-Flat Major, D. 485: II. Andante con moto
track: Hungarian Rhapsody No. 2 in C-Sharp Minor, S. 359/2
track: Peer Gynt Suite No. 1, Op. 46: Morning Mood
track: Music for the Royal Fireworks, HWV 351: III. La réjouissance

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Bagatelle in A Minor, WoO 59, "Für Elise"
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L'Estro Armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: I. Allegro
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Wiegenlied (Lullaby) No. 2
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Three Nocturnes for Piano, Op. 62: Liebestraum No. 3 in A-Flat Major, G 541: "O lieb so lang' Du lieben kannst": Poco allegro con affetto
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Concerto in A Minor for Piano and Orchestra, Op. 16: I. Allegro molto moderato
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String Quartet No. 62 in C Major, Op. 76:3, "Emperor": II. Poco adagio: Cantabile
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Xerxes, Act 1: "Ombra mai fu"
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Prélude à l'après-midi d'un faune (Prelude to a Faun's Afternoon), L 86
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Samson et Dalila, Op. 47, Act 2: "Mon coeur s'ouvre a ta voix"
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subject of: OpenTimestamps Proof of Existence
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Waltz No. 1 in D-Flat Major, Op. 64, "Minute Waltz"
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subject of: OpenTimestamps Proof of Existence
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Concerto in D Major for Violin and Orchestra, Op. 77: III. Allegro giocoso
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  date published: 2026-07-02T03:55:08Z
audio: Concerto in D Major for Violin and Orchestra, Op. 77: III. Allegro giocoso
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Festival Overture in E-Flat Major, "The Year 1812", Op. 49
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  date published: 2026-07-02T11:34:59Z
audio: Festival Overture in E-Flat Major, "The Year 1812", Op. 49
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Prince Igor, Polovtsian Dances: I. Introduction - Andantino
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subject of: OpenTimestamps Proof of Existence
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audio: Prince Igor, Polovtsian Dances: I. Introduction - Andantino
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Kinderszenen, Op. 15: Träumerei (Orchestra version)
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String Quintet in E Major, Op. 13: Minuet
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Piano Sonata in A major, K. 331 - III. Finale - Rondo a la Turka
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Salut d'amour, Op. 12
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Pavane pour une infante défunte (Pavane for a Dead Princess), M. 19
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Fugue for Solo Guitar in G Minor, BWV 1000
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Sonata No. 8 in C Minor for Piano, Op. 13, "Pathétique": Adagio cantabile
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Concerto in C Major for Guitar and Orchestra, RV 425: I. Allegro
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Concerto No. 1 in E-Flat Major for Piano and Orchestra, S. 124: II. Quasi adagio
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subject of: OpenTimestamps Proof of Existence
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Slåtter (Norwegian Peasant Dances), Op. 72: Bruremarsch fra Telemarken (Bridal March from Telemark)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Concerto in E-Flat Major for Trumpet and Orchestra, Hob. VIIe: III. Finale: Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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Moments musicaux, D. 780: Air Russe in F Minor: Allegro moderato
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audio: Moments musicaux, D. 780: Air Russe in F Minor: Allegro moderato
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Messiah, HWV 56: Hallelujah Chorus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:43:08Z
audio: Messiah, HWV 56: Hallelujah Chorus
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Syrinx for Solo Flute, L 129
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Syrinx for Solo Flute, L 129
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Le carnaval des animaux (The Carnival of the Animals): Le cygne (The Swan)
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by artist: Stockholm Chamber Duo
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Concerto No. 1 in B-Flat Minor for Piano and Orchestra, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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String Quartet No. 2 in D Major: IV. Finale: Andante - Vivace
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Fantasy Pieces, Op. 12: Des Abends (The Evening)
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Concerto No. 2 in D Major for Cello and Orchestra, G. 479: III. Allegro vivo
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Pomp and Circumstance, Op. 39: Land of Hope and Glory
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Symphony No. 29 in A Major, K. 201: I. Allegro moderato
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Prelude and Fugue in A Minor, BWV 543
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Prelude and Fugue in A Minor, BWV 543
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Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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by artist: London Philharmonic Orchestra
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genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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Concerto in C Major for Sopranino Recorder, Strings and B.C, RV 444: II. Largo
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by artist: Munich Chamber Orchestra
by artist: Karl Stangenberg
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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
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Symphony No. 5 in B-Flat Major, D. 485: II. Andante con moto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Symphony No. 5 in B-Flat Major, D. 485: II. Andante con moto
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Hungarian Rhapsody No. 2 in C-Sharp Minor, S. 359/2
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Hungarian Rhapsody No. 2 in C-Sharp Minor, S. 359/2
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Peer Gynt Suite No. 1, Op. 46: Morning Mood
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Peer Gynt Suite No. 1, Op. 46: Morning Mood
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Music for the Royal Fireworks, HWV 351: III. La réjouissance
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Music for the Royal Fireworks, HWV 351: III. La réjouissance
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Rise of the Masters: 100 Supreme Classical Masterpieces
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track: Die Zauberflöte (The Magic Flute), K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Queen of the Night's Aria)
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track: Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Symphony No. 40 in G Minor, K. 550: Allegro molto
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Die Zauberflöte (The Magic Flute), K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Queen of the Night's Aria)
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subject of: OpenTimestamps Proof of Existence
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audio: Die Zauberflöte (The Magic Flute), K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Queen of the Night's Aria)
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Concerto No. 21 in C Major for Piano and Orchestra, K. 467: Andante
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Requiem, K. 626: Lacrimosa dies illa
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Egmont, Op. 84: Overture in F Minor
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Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
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Symphony No. 9 in D Minor, Op. 125, "Choral": An die Freude
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Robert & Clara Schumann
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From Vienna With Love
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Beethoven: Piano Concertos No. 3 & 5
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The Darkest Classical Piano Pieces
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Lieder und Gesänge, Vol. IV, Op. 96: I. Nachlicht
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The Best Romantic Era Allegros
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Concerto grosso No. 12 in B Minor, HWV 330: I. Largo
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Classical Hits of Germany
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Schumann Playlist
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Study 101
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Selected Works by Female Composers
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