Alexander Kravets
type: MusicGroup
genre: opera
popularity: 3
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f18e20386025b3d846101f08c2a0de0ff19a40e95d1e4afb5e6d238c2e66e2c
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d1b5f8d-8d29-411b-9426-9b3e306c18d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d1b5f8d-8d29-411b-9426-9b3e306c18d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d1b5f8d-8d29-411b-9426-9b3e306c18d0
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f18e20386025b3d846101f08c2a0de0ff19a40e95d1e4afb5e6d238c2e66e2c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d1b5f8d-8d29-411b-9426-9b3e306c18d0.json and https://artists.proofprofile.net/proofs/artist/3d1b5f8d-8d29-411b-9426-9b3e306c18d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x3f18e20386025b3d846101f08c2a0de0ff19a40e95d1e4afb5e6d238c2e66e2c","name":"Alexander Kravets","registered_at":"2026-06-16T10:52:04Z","symbol":"NIM1029081","token_address":"0xe49bc8dd78e8c10b150d28076c95d5c2c8a473b1","type":"artist","uuid":"3d1b5f8d-8d29-411b-9426-9b3e306c18d0"}
track: Lady Macbeth of Mtsensk District, Op. 29, Act I Scene 2: Ay! Ay! Ay! Ay, besstïžiy, oy, ne ščípli ... Otpustíte, bábu
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184240
  explicit: false
  by artist: Dmitri Shostakovich
  by artist: Michelle Trainor
  by artist: Alexander Kravets
  by artist: Brandon Cedel
  by artist: Joo Won Kang
  by artist: Brenden Gunnell
  by artist: Kristine Opolais
  by artist: Tanglewood Festival Chorus
  by artist: Boston Symphony Orchestra
  by artist: Andris Nelsons
  in album: Shostakovich: Lady Macbeth of Mtsensk District, Op. 29
    type: MusicAlbum
    date published: 2025-03-27
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  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/DEN962435505
  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 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 0x239c99febf5c435df602d2477e94bb609a1e35949e18e2a962919e1141611d25. 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/DEN962435505.
    date published: 2026-07-02T03:55:08Z
  audio: Lady Macbeth of Mtsensk District, Op. 29, Act I Scene 2: Ay! Ay! Ay! Ay, besstïžiy, oy, ne ščípli ... Otpustíte, bábu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 168.127
    additional property: Musical Key
      type: PropertyValue
      value: 0
    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: 0.321
    additional property: Energy
      type: PropertyValue
      value: 0.665
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.737
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.102
    additional property: Liveness
      type: PropertyValue
      value: 0.978
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.302
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.254
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major