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album: Václav Talich Conducts Dvořák Symphony No. 8 and Suk Serenade For Strings (2023 Remastered Version)
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album: Dvorak: Terzetto Om C Major, Opus 74; Cypresses String Quartet; Cypresses Original Song Version
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  track: Dvorak: Songs My Mother Taught Me
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Dvorak: Songs My Mother Taught Me
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Humoresque No. 7
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Piano Concerto in G Minor, Op. 33: III. Allegro con fuoco
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Piano Concerto in G Minor, Op. 33: I. Allegro agitato
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Piano Concerto in G Minor, Op. 33: II. Andante sostenuto
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by artist: Prague Symphony Orchestra
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  date published: 2026-07-31T15:20:15Z
audio: Piano Concerto in G Minor, Op. 33: II. Andante sostenuto
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Piano Quintet No. 2 in A Major, Op. 81, B. 155: I. Allegro, ma non tanto
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duration: PT13M40S
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by artist: Václav Smetáček
by artist: Prague Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:15:43Z
audio: Piano Quintet No. 2 in A Major, Op. 81, B. 155: I. Allegro, ma non tanto
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Piano Quintet No. 2 in A Major, Op. 81, B. 155: II. Dumka. Andante con moto
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by artist: Prague Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Piano Quintet No. 2 in A Major, Op. 81, B. 155: II. Dumka. Andante con moto
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Piano Quintet No. 2 in A Major, Op. 81, B. 155: III. Scherzo Furiant. Molto vivace
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by artist: Prague Symphony Orchestra
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  date published: 2026-07-31T19:53:13Z
audio: Piano Quintet No. 2 in A Major, Op. 81, B. 155: III. Scherzo Furiant. Molto vivace
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Romantic Pieces, Op. 75 - Iv. Larghetto
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by artist: Scott St. John
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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: 2026-07-08T03:20:19Z
audio: Romantic Pieces, Op. 75 - Iv. Larghetto
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Dvorak: Serenade for Strings, Op. 22 2. Minuet. Allegro con moto - Trio
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by artist: Royal Philharmonic Orchestra
by artist: Yehudi Menuhin <perfomrer>:
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:55:08Z
audio: Dvorak: Serenade for Strings, Op. 22 2. Minuet. Allegro con moto - Trio
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Dvorak: Symphony No. 9 in E Minor "From the New World", 4. Allegro Con Fuoco
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by artist: Royal Philharmonic Orchestra
by artist: Paavo Jarvi<perfomrer>:
in album: Big Dvorak Box
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Dvorak: Symphony No. 9 in E Minor "From the New World", 4. Allegro Con Fuoco
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Dvorak: Humoresque
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duration: PT3M53S
duration ms: 233906
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by artist: Antonin Dvorák
by artist: Mischa Elman
by artist: Joseph Seiger
in album: Big Violin Box
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popularity: 15
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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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  date published: 2026-07-02T03:30:09Z
audio: Dvorak: Humoresque
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Time Signature
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Danceability
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Energy
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Acousticness
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Instrumentalness
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Liveness
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Loudness (dB)
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The Maiden and the Nightingale
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duration: PT5M44S
duration ms: 344373
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by artist: Marylene Dosse
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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: 2026-07-08T08:56:20Z
audio: The Maiden and the Nightingale
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Joan Sutherland: Personal Choices
type: MusicAlbum
date published: 2023-01-27
track: Nel cor più non mi sento
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Nel cor più non mi sento
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Emanuel Feuermann in Concert
type: MusicAlbum
date published: 2023-10-13

Elegies And Rhapsodies
type: MusicAlbum
date published: 1998-03-01

Orient Express - 20 Light Classics
type: MusicAlbum
date published: 2014-05-27
track: Waltz from Murder on the Orient Express
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  by artist: Iain Sutherland Concert Orchestra
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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: 2026-07-08T08:56:20Z
  audio: Waltz from Murder on the Orient Express
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track: Cockles and Mussels
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  by artist: Iain Sutherland
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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track: Tea for Two
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  by artist: Dmitri Shostakovich
  by artist: Iain Sutherland Concert Orchestra
  by artist: Iain Sutherland
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  audio: Tea for Two
track: The Skaters' Waltz
track: Swedish Rhapsody
track: Tango
track: Procession of the Sardar
track: Czardas
track: Overture: Susannah's Secret

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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 0x77d7d1e9e039944d687f11e84573529b056d45b93dd4323972983a64516a3149. 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/USX761425003.
date published: 2026-07-08T08:56:20Z

Tea for Two
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.88
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.339
additional property: Energy
  type: PropertyValue
  value: 0.109
additional property: Speechiness
  type: PropertyValue
  value: 0.042
additional property: Acousticness
  type: PropertyValue
  value: 0.965
additional property: Instrumentalness
  type: PropertyValue
  value: 0.269
additional property: Liveness
  type: PropertyValue
  value: 0.249
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.162
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.989
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

The Skaters' Waltz
type: MusicRecording
duration: PT4M53S
duration ms: 293400
explicit: false
by artist: Émile Waldteufel
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 1
isrc code: USX761425004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:29:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb365c802d23cbd2cd9ed48e68e8434e97b6efe328c5c55b35084787567fc2112
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/USX761425004
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 0xb365c802d23cbd2cd9ed48e68e8434e97b6efe328c5c55b35084787567fc2112. 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/USX761425004.
  date published: 2026-07-08T08:56:20Z
audio: The Skaters' Waltz
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.705
  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: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.134
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.886
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.191
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.211
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Swedish Rhapsody
type: MusicRecording
duration: PT3M2S
duration ms: 182400
explicit: false
by artist: Hugo Alfvén
by artist: Percy Faith
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 17
isrc code: USX761425005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:58:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x984b473e8dffb13976569e2a3599c382502d1c9d26b77879f2b851fe2cf47b85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761425005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x984b473e8dffb13976569e2a3599c382502d1c9d26b77879f2b851fe2cf47b85. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USX761425005.
  date published: 2026-06-13T13:32:09Z
audio: Swedish Rhapsody
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.87
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.678
  additional property: Energy
    type: PropertyValue
    value: 0.281
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.198
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.511
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.494
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Tango
type: MusicRecording
duration: PT2M46S
duration ms: 166600
explicit: false
by artist: Isaac Albéniz
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 3
genre: classical
genre: classical-piano
isrc code: USX761425006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:51:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc3e88f619364ad0cbff92748fa827f2498a4903e4e97681e53da7ef315a54f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761425006
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e88f619364ad0cbff92748fa827f2498a4903e4e97681e53da7ef315a54f7. 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/USX761425006.
  date published: 2026-07-08T03:22:41Z
audio: Tango
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.303
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.198
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.885
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.077
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.877
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Procession of the Sardar
type: MusicRecording
duration: PT4M4S
duration ms: 244400
explicit: false
by artist: Mikhail Ippolitov-Ivanov
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 2
genre: post-romantic-era
genre: russian-romanticism
isrc code: USX761425011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:41:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x166882a9e7244e93b342f1f97830367655e8dcce7a3c8acd6fdf684cf093fc74
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/USX761425011
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 0x166882a9e7244e93b342f1f97830367655e8dcce7a3c8acd6fdf684cf093fc74. 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/USX761425011.
  date published: 2026-07-08T03:20:19Z
audio: Procession of the Sardar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.03
  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: 0.223
  additional property: Energy
    type: PropertyValue
    value: 0.292
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.83
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.115
  additional property: Liveness
    type: PropertyValue
    value: 0.231
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.329
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.686
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Czardas
type: MusicRecording
duration: PT3M58S
duration ms: 238400
explicit: false
by artist: Vittorio Monti
by artist: Annunzio Paolo Mantovani
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 2
isrc code: USX761425017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:51:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97be6dd8f63f64ce81731f9a7ce9747712749652af86fa28446cdc979b691087
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/USX761425017
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 0x97be6dd8f63f64ce81731f9a7ce9747712749652af86fa28446cdc979b691087. 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/USX761425017.
  date published: 2026-07-08T03:20:19Z
audio: Czardas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.581
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.3
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.378
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.197
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.01
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Overture: Susannah's Secret
type: MusicRecording
duration: PT3M8S
duration ms: 188400
explicit: false
by artist: Ermanno Wolf-Ferrari
by artist: Iain Sutherland Concert Orchestra
by artist: Iain Sutherland
in album: Orient Express - 20 Light Classics
  type: MusicAlbum
  date published: 2014-05-27
popularity: 17
isrc code: USX761425020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T16:56:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5909179a0953c55c0471de53e8e0e773bc9c45c5fe892ffa96cd05085fd27229
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956351
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761425020
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
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 0x5909179a0953c55c0471de53e8e0e773bc9c45c5fe892ffa96cd05085fd27229. 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/USX761425020.
  date published: 2026-07-02T11:38:34Z
audio: Overture: Susannah's Secret
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.037
  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: 0.481
  additional property: Energy
    type: PropertyValue
    value: 0.291
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.923
  additional property: Liveness
    type: PropertyValue
    value: 0.355
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.598
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.158
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

David Oistrakh - Violin Masterclass
type: MusicAlbum
date published: 2021-09-03

Dvořák: Piano Concerto, Piano Quintet
type: MusicAlbum
date published: 2022-02-18
track: Piano Concerto in G Minor, Op. 33: III. Allegro con fuoco
track: Piano Concerto in G Minor, Op. 33: I. Allegro agitato
track: Piano Concerto in G Minor, Op. 33: II. Andante sostenuto
track: Piano Quintet No. 2 in A Major, Op. 81, B. 155: I. Allegro, ma non tanto
track: Piano Quintet No. 2 in A Major, Op. 81, B. 155: II. Dumka. Andante con moto
track: Piano Quintet No. 2 in A Major, Op. 81, B. 155: III. Scherzo Furiant. Molto vivace

Elgar: Cello Concerto; Serenade for Strings
type: MusicAlbum
date published: 2015-07-24
track: Cello Concerto in E Minor, Op. 85
  type: MusicRecording
  duration: PT7M25S
  duration ms: 445546
  explicit: false
  by artist: Edward Elgar
  by artist: Paul Tortelier
  by artist: Sir Charles Groves
  by artist: Royal Philharmonic Orchestra
  in album: Elgar: Cello Concerto; Serenade for Strings
    type: MusicAlbum
    date published: 2015-07-24
  genre: classical
  genre: late-romantic-era
  genre: british-modern-classical
  genre: victorian-britain
  isrc code: USX761526501
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T20:09:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0c255603ba9a139951190093fc359b81d6cd71fff3ea23ce15600fafeae5cbe9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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Ida Haendel & Josef Hassid - Their HMV Encores (Remastered 2023)
type: MusicAlbum
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Dvořák: Symphonies Nos. 7 and 8 – Davis, LSO
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Antonín Dvorák: From the Bohemian Forest & Dumky
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Dvorak: Theme & Variations; Poetic Tone Poems
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Dvorák: Piano Works Played on Dvorák's Own Bösendorfer Piano (Vol. II)
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Dvorak Piano Trios
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Dvorak: Humoresques Op.101; American Suite Op.98; Dumka And Furiant Op.12; Silhouettes Op.8
type: MusicAlbum
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Dvorak Music For Violin
type: MusicAlbum
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track: Romantic Pieces, Op. 75 - Iv. Larghetto

Dvorak Symphonies No. 7 And 8
type: MusicAlbum
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Big Dvorak Box
type: MusicAlbum
date published: 2017-12-22
track: Dvorak: Serenade for Strings, Op. 22 2. Minuet. Allegro con moto - Trio
track: Dvorak: Symphony No. 9 in E Minor "From the New World", 4. Allegro Con Fuoco

Big Violin Box
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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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track: Dvorak: Humoresque
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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The Musical Sea of Tranquility
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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
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T11:17:55Z
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    date published: 2026-07-02T05:09:12Z
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Sunken Cathedral: Classics for Kids
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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
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Edward Elgar: Six Easy Pieces
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track: Robert Schumann: Scenes of Childhood, No. 1 in G Major (Of Foreign Lands and Places)
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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: Robert Schumann: Scenes of Childhood, No. 1 in G Major (Of Foreign Lands and Places)
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Johann Sebastian Bach: Prelude in C Major, BWV846
track: Robert Scuhmann: Scenes of Childhood, No. 7 in F Major (Dreaming)
track: Claude Debussy: Clair de Lune
track: Franz Schubert: Sonatina in D Major, D.384 II. Andante

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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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 0xe2851e4c7f076c365467780b53798a68fb7d1662c8c6bdfdffceba48ba202ef0. 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/USKO11501096.
date published: 2026-07-08T03:53:27Z

Johann Sebastian Bach: Prelude in C Major, BWV846
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Robert Scuhmann: Scenes of Childhood, No. 7 in F Major (Dreaming)
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by artist: Marc Neikrug
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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: Robert Scuhmann: Scenes of Childhood, No. 7 in F Major (Dreaming)
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Claude Debussy: Clair de Lune
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by artist: Claude Debussy
by artist: Marc Neikrug
in album: Sunken Cathedral: Classics for Kids
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genre: classical
genre: impressionism
genre: post-romantic-era
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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: 2026-07-08T08:56:20Z
audio: Claude Debussy: Clair de Lune
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Franz Schubert: Sonatina in D Major, D.384 II. Andante
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by artist: Franz Schubert
by artist: Pinchas Zukerman
by artist: Marc Neikrug
in album: Sunken Cathedral: Classics for Kids
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genre: classical
genre: classical-piano
genre: chamber-music
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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: Franz Schubert: Sonatina in D Major, D.384 II. Andante
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A Portrait of Mischa Elman
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date published: 2015-04-21

Romantic Dances For Piano Duet
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Brahms: A German Requiem (Ein Deutsches Requiem)
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Dvorak & Schumann Cello Concertos
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Big Great Symphonies Box, Vol I
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date published: 2013-10-22

Big Greatest Hits
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Sommersprossen
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Beautiful Classical
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Little Big Box: Adagios
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  by artist: Camerata of St. Andrew
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  audio: George Frederic Handel: Largo (from Xerxes)
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Dvorak And Mozart
type: MusicAlbum
date published: 1994

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type: MusicAlbum
date published: 2018-03-02

Czech Piano Anthology
type: MusicAlbum
date published: 2011-03-08