Artem Belogurov
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followers: 135
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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
subject of: OpenTimestamps Proof of Existence
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album: The Pied Piper of Hamelin and other Melodramas
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  date published: 2021-11-26
album: Live at Concertgebouw
  type: MusicAlbum
  date published: 2024-05-24
album: From Mannheim to Berlin - Sonatas for Violoncello Piccolo
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  date published: 2023-07-07
  track: Sonate pour le violoncelle et la basse continue in A Major Op. 5 No. 2: II. Adagio
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    by artist: Johann Anton Filtz
    by artist: Octavie Dostaler-Lalonde
    by artist: Artem Belogurov
    by artist: Victor Garcia Garcia
    by artist: Victor García García
    in album: From Mannheim to Berlin - Sonatas for Violoncello Piccolo
      type: MusicAlbum
      date published: 2023-07-07
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-31T12:24:41Z
    audio: Sonate pour le violoncelle et la basse continue in A Major Op. 5 No. 2: II. Adagio
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      additional property: Tempo (BPM)
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album: Crossroads: American Violin Sonatas
  type: MusicAlbum
  date published: 2021-11-05
  track: Violin Sonata No. 2: I. Joyous
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    by artist: Aleksey Semenenko
    by artist: Artem Belogurov
    in album: Crossroads: American Violin Sonatas
      type: MusicAlbum
      date published: 2021-11-05
    genre: classical
    genre: orchestra
    isrc code: SEAEB2145010
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T02:22:04Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1179a07715d3c3ae72d2d4ce7fa0bad1383792f4a06dfb6e556fedf33d186f0b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/SEAEB2145010.
      date published: 2026-08-01T02:22:04Z
    audio: Violin Sonata No. 2: I. Joyous
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      additional property: Tempo (BPM)
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      additional property: Speechiness
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      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
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album: Miscellanea
album: American Romantics: The Boston Scene
album: Rocking the Cradle
album: The Fiery Angel
album: Romantic Music by American Composers
album: Explorer Set: The American Edition, Vol. 1

Speechiness
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Acousticness
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Instrumentalness
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value: 0.419

Liveness
type: PropertyValue
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Valence (Positivity)
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value: 0.09

Loudness (dB)
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value: -24.692

Key Name
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Mode Name
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value: Major

Miscellanea
type: MusicAlbum
date published: 2021-10-01

American Romantics: The Boston Scene
type: MusicAlbum
date published: 2015-07-03
track: Bagatelles for the Piano: IV. Idylle
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  duration: PT2M45S
  duration ms: 165066
  explicit: false
  by artist: Arthur Whiting
  by artist: Artem Belogurov
  in album: American Romantics: The Boston Scene
    type: MusicAlbum
    date published: 2015-07-03
  isrc code: GBX3U1106320
  additional property: CopyrightID
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8b40eca5e92d82676196f89ab4da419417570f36195f04df6195fea94a4433. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBX3U1106320.
    date published: 2026-07-31T15:20:15Z
  audio: Bagatelles for the Piano: IV. Idylle
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    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Key Name
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track: Water Scenes, Op. 13: IV. Narcissus
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170146
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  by artist: Ethelbert Nevin
  by artist: Artem Belogurov
  in album: American Romantics: The Boston Scene
    type: MusicAlbum
    date published: 2015-07-03
  isrc code: GBX3U1106333
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBX3U1106333
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59f69d9ba8b7543701b419bda8c7ca15398db46ba7bd4f6124cc1adb6dbb8d1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBX3U1106333.
    date published: 2026-07-30T06:39:12Z
  audio: Water Scenes, Op. 13: IV. Narcissus
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    additional property: Valence (Positivity)
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Rocking the Cradle
type: MusicAlbum
date published: 2021-03-26

The Fiery Angel
type: MusicAlbum
date published: 2018-02-04

Romantic Music by American Composers
type: MusicAlbum
date published: 2024-06-05

Explorer Set: The American Edition, Vol. 1
type: MusicAlbum
date published: 2025-04-25