EET Kreef!
type: MusicGroup
popularity: 7
followers: 970
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97343bc0b0e753b1ec315ec9994768a6f956bc7a171d55ed46a1e32cb314a537
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/bb67266a-68c6-44c3-9ae9-c3357747e410.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb67266a-68c6-44c3-9ae9-c3357747e410.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb67266a-68c6-44c3-9ae9-c3357747e410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97343bc0b0e753b1ec315ec9994768a6f956bc7a171d55ed46a1e32cb314a537","name":"EET Kreef!","registered_at":"2026-06-20T17:20:07Z","symbol":"NIM1663850","token_address":"0x5f6d49716d826e6084c7c9b9b7a291468bb2d6aa","type":"artist","uuid":"bb67266a-68c6-44c3-9ae9-c3357747e410"}
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 0x97343bc0b0e753b1ec315ec9994768a6f956bc7a171d55ed46a1e32cb314a537. 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/bb67266a-68c6-44c3-9ae9-c3357747e410.json and https://artists.proofprofile.net/proofs/artist/bb67266a-68c6-44c3-9ae9-c3357747e410.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x97343bc0b0e753b1ec315ec9994768a6f956bc7a171d55ed46a1e32cb314a537","name":"EET Kreef!","registered_at":"2026-06-20T17:20:07Z","symbol":"NIM1663850","token_address":"0x5f6d49716d826e6084c7c9b9b7a291468bb2d6aa","type":"artist","uuid":"bb67266a-68c6-44c3-9ae9-c3357747e410"}
album: Hillbrow (Live)
  type: MusicAlbum
  date published: 2019-07-25
album: EET Kreef! (Herleef)
  type: MusicAlbum
  date published: 2019-11-21
  track: Hillbrow
    type: MusicRecording
    duration: PT4M3S
    duration ms: 243511
    explicit: false
    by artist: EET Kreef!
    in album: EET Kreef! (Herleef)
      type: MusicAlbum
      date published: 2019-11-21
    isrc code: QZHNB1957418
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T06:25:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6c3a6a6c3e407bd175db19e46ba22ebf5ca72c0265a6c572d20a1712c2778c04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNB1957418
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0x6c3a6a6c3e407bd175db19e46ba22ebf5ca72c0265a6c572d20a1712c2778c04. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHNB1957418.
      date published: 2026-07-18T12:14:37Z
    audio: Hillbrow
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.153
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.335
      additional property: Energy
        type: PropertyValue
        value: 0.147
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.791
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.178
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.818
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major