九局
type: MusicGroup
popularity: 2
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a0b3969c01cdcb9ab64f60cb16b35fa2e21cf2194de63871b7325946f8dab7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/481e7fcf-1e26-458d-9942-844d3e01e50a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/481e7fcf-1e26-458d-9942-844d3e01e50a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/481e7fcf-1e26-458d-9942-844d3e01e50a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3a0b3969c01cdcb9ab64f60cb16b35fa2e21cf2194de63871b7325946f8dab7a","name":"九局","registered_at":"2026-06-16T14:42:13Z","symbol":"NIM1083979","token_address":"0x56a77b3ce188b44acaaeeeb8e0a3dcd8aedccc89","type":"artist","uuid":"481e7fcf-1e26-458d-9942-844d3e01e50a"}
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 0x3a0b3969c01cdcb9ab64f60cb16b35fa2e21cf2194de63871b7325946f8dab7a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/481e7fcf-1e26-458d-9942-844d3e01e50a.json and https://artists.proofprofile.net/proofs/artist/481e7fcf-1e26-458d-9942-844d3e01e50a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3a0b3969c01cdcb9ab64f60cb16b35fa2e21cf2194de63871b7325946f8dab7a","name":"九局","registered_at":"2026-06-16T14:42:13Z","symbol":"NIM1083979","token_address":"0x56a77b3ce188b44acaaeeeb8e0a3dcd8aedccc89","type":"artist","uuid":"481e7fcf-1e26-458d-9942-844d3e01e50a"}
album: 我已经爱上你
  type: MusicAlbum
  date published: 2018-07-25
album: 我已经爱上你
  type: MusicAlbum
  date published: 2018-07-25
album: 我已经爱上你
  type: MusicAlbum
  date published: 2018-07-25
album: 旧少年
  type: MusicAlbum
  date published: 2019-01-06
album: 我已经爱上你
  type: MusicAlbum
  date published: 2021-06-01
  track: 我已经爱上你
    type: MusicRecording
    duration: PT1M31S
    duration ms: 91965
    explicit: false
    by artist: 九局
    in album: 我已经爱上你
      type: MusicAlbum
      date published: 2021-06-01
    isrc code: FR59R1872985
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:09:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf9af2ca439f20831b83b80be9678b70659db934c3f224ecb62fdbe19af946fe1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1872985
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:10:34Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9af2ca439f20831b83b80be9678b70659db934c3f224ecb62fdbe19af946fe1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:10:34Z), 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/FR59R1872985.
      date published: 2026-07-19T19:10:34Z
    audio: 我已经爱上你
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.978
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.741
      additional property: Energy
        type: PropertyValue
        value: 0.385
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.56
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.766
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.702
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 陪妈尬尬舞
  type: MusicAlbum
  date published: 2023-02-11
album: 大众空间麦
  type: MusicAlbum
  date published: 2023-11-22