Killer Z
type: MusicGroup
popularity: 6
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7db5fd091c2a7db00573ef12f422893c03cb26a52a71fb34a0bc344173b12090
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953875
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953875
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07910883-27d3-47fa-be48-eb6379101730.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/07910883-27d3-47fa-be48-eb6379101730.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/07910883-27d3-47fa-be48-eb6379101730
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:12:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7db5fd091c2a7db00573ef12f422893c03cb26a52a71fb34a0bc344173b12090","name":"Killer Z","registered_at":"2026-06-15T16:14:15Z","symbol":"NIM0762253","token_address":"0xbd310e329f9a9c524989a3cbd234c06c5b04045f","type":"artist","uuid":"07910883-27d3-47fa-be48-eb6379101730"}
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 0x7db5fd091c2a7db00573ef12f422893c03cb26a52a71fb34a0bc344173b12090. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07910883-27d3-47fa-be48-eb6379101730.json and https://artists.proofprofile.net/proofs/artist/07910883-27d3-47fa-be48-eb6379101730.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:12:46Z
  text: {"copyright_id":"0x7db5fd091c2a7db00573ef12f422893c03cb26a52a71fb34a0bc344173b12090","name":"Killer Z","registered_at":"2026-06-15T16:14:15Z","symbol":"NIM0762253","token_address":"0xbd310e329f9a9c524989a3cbd234c06c5b04045f","type":"artist","uuid":"07910883-27d3-47fa-be48-eb6379101730"}
album: MAKEDA (REMIX)
  type: MusicAlbum
  date published: 2025-06-23
  track: MAKEDA - REMIX
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165000
    explicit: true
    by artist: Killer Z
    in album: MAKEDA (REMIX)
      type: MusicAlbum
      date published: 2025-06-23
    isrc code: QZTB82592034
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:27:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02a4152a899e2ac2e487b9ac903546e5c1fdb568cdf3e6962876e82eaec5f5da
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82592034
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T15:30:08Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a4152a899e2ac2e487b9ac903546e5c1fdb568cdf3e6962876e82eaec5f5da. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:30:08Z), 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/QZTB82592034.
      date published: 2026-07-15T15:30:08Z
    audio: MAKEDA - REMIX
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.999
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.791
      additional property: Energy
        type: PropertyValue
        value: 0.782
      additional property: Speechiness
        type: PropertyValue
        value: 0.291
      additional property: Acousticness
        type: PropertyValue
        value: 0.344
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.368
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.636
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.691
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Shahr 6 (Remix)
  type: MusicAlbum
  date published: 2025-08-08