Alexandrov Ensemble
type: MusicGroup
description: thumb|upright=1.2|The Alexandrov Ensemble with Joseph Kobzon as soloist thumb|upright=1.2|The Alexandrov Ensemble, Bielsko-Biala, 2006. Victor Sanin on the left, Dmitry Bykov on the right (soloists) T
popularity: 6
followers: 488
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb178ab5a390db5de48602b6120febb9be71f6ceb542b81ee74133f0819d8e54b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc1a25ee-1b76-491d-b173-b0d888540f94.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bc1a25ee-1b76-491d-b173-b0d888540f94.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bc1a25ee-1b76-491d-b173-b0d888540f94
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb178ab5a390db5de48602b6120febb9be71f6ceb542b81ee74133f0819d8e54b","name":"Alexandrov Ensemble","registered_at":"2026-06-20T17:11:14Z","symbol":"NIM1663399","token_address":"0x24fd59fe647dfa869e39dd11144f480a294f2585","type":"artist","uuid":"bc1a25ee-1b76-491d-b173-b0d888540f94"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178ab5a390db5de48602b6120febb9be71f6ceb542b81ee74133f0819d8e54b. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc1a25ee-1b76-491d-b173-b0d888540f94.json and https://artists.proofprofile.net/proofs/artist/bc1a25ee-1b76-491d-b173-b0d888540f94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xb178ab5a390db5de48602b6120febb9be71f6ceb542b81ee74133f0819d8e54b","name":"Alexandrov Ensemble","registered_at":"2026-06-20T17:11:14Z","symbol":"NIM1663399","token_address":"0x24fd59fe647dfa869e39dd11144f480a294f2585","type":"artist","uuid":"bc1a25ee-1b76-491d-b173-b0d888540f94"}
album: Red Army Favourites
  type: MusicAlbum
  date published: 2021-02-19
  track: Polyushko-polye - Cossack Patrol
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168800
    explicit: false
    by artist: Alexandrov Ensemble
    in album: Red Army Favourites
      type: MusicAlbum
      date published: 2021-02-19
    isrc code: USX762100608
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:40:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf20ca636d2313dcf1139ff1413ed610e5ee76c566e5260c90ea241ea19f7bb86
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958788
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958788
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX762100608
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:07:06Z
    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 0xf20ca636d2313dcf1139ff1413ed610e5ee76c566e5260c90ea241ea19f7bb86. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USX762100608.
      date published: 2026-07-19T22:07:06Z
    audio: Polyushko-polye - Cossack Patrol
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.352
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.475
      additional property: Energy
        type: PropertyValue
        value: 0.496
      additional property: Speechiness
        type: PropertyValue
        value: 0.095
      additional property: Acousticness
        type: PropertyValue
        value: 0.949
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.882
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.115
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.164
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor