Rekrut Kurbel
type: MusicGroup
popularity: 3
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc2125a3189f340a452253f53e26c68014672ff0e7e2af2c2069e4a2ec7bfc9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d921cb47-b956-4fa6-93b6-d5f9e2c1698d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d921cb47-b956-4fa6-93b6-d5f9e2c1698d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d921cb47-b956-4fa6-93b6-d5f9e2c1698d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdc2125a3189f340a452253f53e26c68014672ff0e7e2af2c2069e4a2ec7bfc9e","name":"Rekrut Kurbel","registered_at":"2026-06-21T03:57:17Z","symbol":"NIM1812768","token_address":"0x97e07228c1be8c2226ba52d9bec8dc8662c812e4","type":"artist","uuid":"d921cb47-b956-4fa6-93b6-d5f9e2c1698d"}
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 0xdc2125a3189f340a452253f53e26c68014672ff0e7e2af2c2069e4a2ec7bfc9e. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d921cb47-b956-4fa6-93b6-d5f9e2c1698d.json and https://artists.proofprofile.net/proofs/artist/d921cb47-b956-4fa6-93b6-d5f9e2c1698d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xdc2125a3189f340a452253f53e26c68014672ff0e7e2af2c2069e4a2ec7bfc9e","name":"Rekrut Kurbel","registered_at":"2026-06-21T03:57:17Z","symbol":"NIM1812768","token_address":"0x97e07228c1be8c2226ba52d9bec8dc8662c812e4","type":"artist","uuid":"d921cb47-b956-4fa6-93b6-d5f9e2c1698d"}
album: Dragunov
  type: MusicAlbum
  date published: 2018-02-05
album: EAST GERMANY HARDBASS
  type: MusicAlbum
  date published: 2018-02-22
  track: EAST GERMANY HARDBASS
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138397
    explicit: false
    by artist: Rekrut Kurbel
    in album: EAST GERMANY HARDBASS
      type: MusicAlbum
      date published: 2018-02-22
    isrc code: GX38U2359653
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:56:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x72a26dbb8e96e36b715c91d300a394a09b36cdc52aef400963818dae2a08459f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX38U2359653
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x72a26dbb8e96e36b715c91d300a394a09b36cdc52aef400963818dae2a08459f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX38U2359653.
      date published: 2026-07-04T10:04:33Z
    audio: EAST GERMANY HARDBASS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.016
      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: 0.724
      additional property: Energy
        type: PropertyValue
        value: 0.86
      additional property: Speechiness
        type: PropertyValue
        value: 0.116
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.878
      additional property: Liveness
        type: PropertyValue
        value: 0.065
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.453
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.41
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Untitled / ?SYNTAX ERROR
  type: MusicAlbum
  date published: 2018-09-05
album: Biohazard
  type: MusicAlbum
  date published: 2018-10-24
album: Full Tilt Distortion
  type: MusicAlbum
  date published: 2019-04-18
album: Simple, but effective
  type: MusicAlbum
  date published: 2019-12-28
album: 8-Bit Mess
  type: MusicAlbum
  date published: 2020-01-22