Kamcity Empire
type: MusicGroup
popularity: 2
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x436599486ca96f00a89732e99db13aec5a6fde12bcc219df70cda80d882002e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df4156e5-334a-40e5-9f8a-99fa0adfabb2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df4156e5-334a-40e5-9f8a-99fa0adfabb2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df4156e5-334a-40e5-9f8a-99fa0adfabb2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x436599486ca96f00a89732e99db13aec5a6fde12bcc219df70cda80d882002e8","name":"Kamcity Empire","registered_at":"2026-06-21T05:48:18Z","symbol":"NIM1838845","token_address":"0x8a9a72a7a9c659b00cdeb5d978f068d706879617","type":"artist","uuid":"df4156e5-334a-40e5-9f8a-99fa0adfabb2"}
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 0x436599486ca96f00a89732e99db13aec5a6fde12bcc219df70cda80d882002e8. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df4156e5-334a-40e5-9f8a-99fa0adfabb2.json and https://artists.proofprofile.net/proofs/artist/df4156e5-334a-40e5-9f8a-99fa0adfabb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x436599486ca96f00a89732e99db13aec5a6fde12bcc219df70cda80d882002e8","name":"Kamcity Empire","registered_at":"2026-06-21T05:48:18Z","symbol":"NIM1838845","token_address":"0x8a9a72a7a9c659b00cdeb5d978f068d706879617","type":"artist","uuid":"df4156e5-334a-40e5-9f8a-99fa0adfabb2"}
album: Only for God
  type: MusicAlbum
  date published: 2018-12-21
album: Prendre Des Risques
  type: MusicAlbum
  date published: 2022-11-28
  track: Prendre Des Risques
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162000
    explicit: false
    by artist: Kamcity Empire
    in album: Prendre Des Risques
      type: MusicAlbum
      date published: 2022-11-28
    isrc code: QZS662227072
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T03:23:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5130ab5abc4c520bfa5780c97b1d64f4ab7a7b836abd763c2f7ab9de6ca38655
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959096
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959096
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS662227072
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T03:48:36Z
    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 0x5130ab5abc4c520bfa5780c97b1d64f4ab7a7b836abd763c2f7ab9de6ca38655. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZS662227072.
      date published: 2026-07-22T03:48:36Z
    audio: Prendre Des Risques
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.994
      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: 0.604
      additional property: Energy
        type: PropertyValue
        value: 0.754
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.754
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.456
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.913
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Yes I Am
  type: MusicAlbum
  date published: 2022-12-02
album: Maria
  type: MusicAlbum
  date published: 2022-12-02
album: Drama
  type: MusicAlbum
  date published: 2023-06-04