张千C.Jam
type: MusicGroup
genre: chinese hip hop
popularity: 2
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f4b1da4598876bec46e0c32c94068105927f82247042dc1802a57a192307f46
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f4b1da4598876bec46e0c32c94068105927f82247042dc1802a57a192307f46","name":"张千C.Jam","registered_at":"2026-06-17T08:15:55Z","symbol":"NIM1335362","token_address":"0x90494ca17882da80f121506f7fc82f0523ff1fa9","type":"artist","uuid":"7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4b1da4598876bec46e0c32c94068105927f82247042dc1802a57a192307f46. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb.json and https://artists.proofprofile.net/proofs/artist/7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0x4f4b1da4598876bec46e0c32c94068105927f82247042dc1802a57a192307f46","name":"张千C.Jam","registered_at":"2026-06-17T08:15:55Z","symbol":"NIM1335362","token_address":"0x90494ca17882da80f121506f7fc82f0523ff1fa9","type":"artist","uuid":"7a3fe3a3-c99c-4085-bcf1-1edf3cff13cb"}
album: Hate Me
  type: MusicAlbum
  date published: 2021-03-13
  track: Hate Me
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199323
    explicit: false
    by artist: 辉子
    by artist: 张千C.Jam
    in album: Hate Me
      type: MusicAlbum
      date published: 2021-03-13
    isrc code: HKG732103531
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-29T15:49:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x47b28553240891ff9348c570fb5f93f784ba4729b195068d130681729261e152
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960138
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960138
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKG732103531
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-29T19:35:34Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b28553240891ff9348c570fb5f93f784ba4729b195068d130681729261e152. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKG732103531.
      date published: 2026-07-29T19:35:34Z
    audio: Hate Me
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.895
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.65
      additional property: Energy
        type: PropertyValue
        value: 0.573
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.155
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.801
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Off Da Hook
  type: MusicAlbum
  date published: 2023-03-14
album: 30 Hours
  type: MusicAlbum
  date published: 2024-05-11
album: Cross My City
  type: MusicAlbum
  date published: 2023-07-26
album: 偷梁换柱
  type: MusicAlbum
  date published: 2021-02-04
album: Ghetto Art
  type: MusicAlbum
  date published: 2018-04-23
album: 外太空漫游
  type: MusicAlbum
  date published: 2020-06-06