Vladimir Sofronitsky
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description: thumb|Vladimir Sofronitsky in a concert Vladimir Vladimirovich Sofronitsky (or Sofronitzky; , Vladimir Sofronitskij; – August 29, 1961) was a Soviet-Russian classical pianist, best known as an inter
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album: Scriabin: 150th Anniversary – Piano Works
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  track: 3 Pieces, Op. 2: No. 1 in C-Sharp Minor, Etude
  track: 12 Etudes, Op. 8: No. 2 in F-Sharp Minor
  track: 12 Etudes, Op. 8: No. 3 in B Minor
  track: 8 Etudes, Op. 42: No. 4 in F-Sharp Major
  track: 8 Etudes, Op. 42: No. 6 in D-Flat Major
  track: 12 Etudes, Op. 8: No. 1 in C-Sharp Major
  track: 12 Etudes, Op. 8: No. 4 in B Major
  track: 12 Etudes, Op. 8: No. 5 in E Major
  track: 12 Etudes, Op. 8: No. 12 in D-Sharp Minor
  track: 8 Etudes, Op. 42: No. 1 in D-Flat Major
  track: 8 Etudes, Op. 42: No. 5 in C-Sharp Minor
album: Scriabin: Complete Piano Sonatas
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  track: Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": I. Andante
  track: Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": II. Presto
  track: Piano Sonata No. 8 in A Major, Op. 66
  track: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: II. Allegretto
  track: Piano Sonata No. 9 in F Major, Op. 68, "Black Mass"
  track: Fantasie in B Minor, Op. 28
  track: Piano Sonata No. 4 in F-Sharp Major, Op. 30: I. Andante
  track: Piano Sonata No. 1 in F Minor, Op. 6: IV. Funebre
  track: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: I. Drammatico
  track: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: III. Andante
  track: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: IV. Presto con fuoco
  track: Piano Sonata No. 4 in F-Sharp Major, Op. 30: II. Prestissimo volando
  track: Piano Sonata No. 5 in F-Sharp Major, Op. 53

3 Pieces, Op. 2: No. 1 in C-Sharp Minor, Etude
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audio: 3 Pieces, Op. 2: No. 1 in C-Sharp Minor, Etude
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12 Etudes, Op. 8: No. 2 in F-Sharp Minor
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12 Etudes, Op. 8: No. 3 in B Minor
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8 Etudes, Op. 42: No. 4 in F-Sharp Major
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8 Etudes, Op. 42: No. 6 in D-Flat Major
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12 Etudes, Op. 8: No. 1 in C-Sharp Major
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12 Etudes, Op. 8: No. 4 in B Major
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12 Etudes, Op. 8: No. 5 in E Major
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12 Etudes, Op. 8: No. 12 in D-Sharp Minor
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8 Etudes, Op. 42: No. 1 in D-Flat Major
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8 Etudes, Op. 42: No. 5 in C-Sharp Minor
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Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": I. Andante
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc42d6d8d745f1f1302efe6cb6a4841ea760e6505bd361f41e29384b5e8e978. 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/DEAD61500702.
  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": I. Andante
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.623
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": II. Presto
type: MusicRecording
duration: PT3M33S
duration ms: 213853
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 4
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:13:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcdeddac07ef68f7d2d4699bbabb4ac1eece0b8281e812a4ab98ff02deee5b164
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/DEAD61500703
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdeddac07ef68f7d2d4699bbabb4ac1eece0b8281e812a4ab98ff02deee5b164. 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/DEAD61500703.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 2 in G-Sharp Minor, Op. 19 "Sonata Fantasy": II. Presto
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.298
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.884
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.245
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.506
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Sonata No. 8 in A Major, Op. 66
type: MusicRecording
duration: PT13M14S
duration ms: 794306
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500718
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:02:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6af03257124c5fd26a1c31c5a5844fe00b24afdbf99293e8608336956aa11133
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/DEAD61500718
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af03257124c5fd26a1c31c5a5844fe00b24afdbf99293e8608336956aa11133. 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/DEAD61500718.
  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata No. 8 in A Major, Op. 66
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.463
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.29
  additional property: Energy
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    value: 0.293
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.908
  additional property: Liveness
    type: PropertyValue
    value: 0.535
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.892
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Sonata No. 3 in F-Sharp Minor, Op. 23: II. Allegretto
type: MusicRecording
duration: PT2M20S
duration ms: 140226
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 4
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:02:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf142126e401191efef1bde6d9f6a310a1589a603ec6a7fd3d3c085c4f5002923
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/DEAD61500705
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf142126e401191efef1bde6d9f6a310a1589a603ec6a7fd3d3c085c4f5002923. 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/DEAD61500705.
  date published: 2026-07-08T03:53:27Z
audio: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: II. Allegretto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.124
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.382
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.092
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.306
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Sonata No. 9 in F Major, Op. 68, "Black Mass"
type: MusicRecording
duration: PT8M28S
duration ms: 508160
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 2
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500719
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:38:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x80de06456a07570748691e4c85f42692766455bf754938103338ab63c6b6c09d
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/DEAD61500719
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80de06456a07570748691e4c85f42692766455bf754938103338ab63c6b6c09d. 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/DEAD61500719.
  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata No. 9 in F Major, Op. 68, "Black Mass"
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 102.98
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.363
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Fantasie in B Minor, Op. 28
type: MusicRecording
duration: PT9M19S
duration ms: 559493
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 15
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500721
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:29:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56b57bf89c591d5d41d2c7ddf942b1599422eb5bea0210a76a094edbe92df4a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61500721
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b57bf89c591d5d41d2c7ddf942b1599422eb5bea0210a76a094edbe92df4a2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAD61500721.
  date published: 2026-07-02T03:55:08Z
audio: Fantasie in B Minor, Op. 28
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.963
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.306
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.87
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.864
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Sonata No. 4 in F-Sharp Major, Op. 30: I. Andante
type: MusicRecording
duration: PT2M50S
duration ms: 170853
explicit: false
by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
  type: MusicAlbum
  date published: 2015-10-02
popularity: 5
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
isrc code: DEAD61500708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:13:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c8a0a88683c65ca7156b9bb0781a1fae3c718298129c0a7202e433c490048fc
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/DEAD61500708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
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audio: Piano Sonata No. 4 in F-Sharp Major, Op. 30: I. Andante
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Piano Sonata No. 1 in F Minor, Op. 6: IV. Funebre
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popularity: 3
genre: classical
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genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
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  date published: 2026-08-01T01:44:32Z
audio: Piano Sonata No. 1 in F Minor, Op. 6: IV. Funebre
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Piano Sonata No. 3 in F-Sharp Minor, Op. 23: I. Drammatico
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by artist: Vladimir Sofronitsky
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  date published: 2015-10-02
popularity: 5
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: I. Drammatico
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Piano Sonata No. 3 in F-Sharp Minor, Op. 23: III. Andante
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by artist: Alexander Scriabin
by artist: Vladimir Sofronitsky
in album: Scriabin: Complete Piano Sonatas
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  date published: 2015-10-02
popularity: 5
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: III. Andante
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Piano Sonata No. 3 in F-Sharp Minor, Op. 23: IV. Presto con fuoco
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by artist: Vladimir Sofronitsky
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popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
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  date published: 2026-07-31T21:25:57Z
audio: Piano Sonata No. 3 in F-Sharp Minor, Op. 23: IV. Presto con fuoco
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Piano Sonata No. 4 in F-Sharp Major, Op. 30: II. Prestissimo volando
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by artist: Vladimir Sofronitsky
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popularity: 4
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T20:45:02Z
audio: Piano Sonata No. 4 in F-Sharp Major, Op. 30: II. Prestissimo volando
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Piano Sonata No. 5 in F-Sharp Major, Op. 53
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by artist: Vladimir Sofronitsky
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popularity: 5
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: contemporary-classical
genre: impressionism
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
audio: Piano Sonata No. 5 in F-Sharp Major, Op. 53
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