J Black
type: MusicGroup
popularity: 5
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ec7f41cda92fbc0f49c16f21d7a1a7c224d970cb0c15a4be82790f24a50ff89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e070e973-7766-4d2c-9cd7-31c7b9f4f856.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e070e973-7766-4d2c-9cd7-31c7b9f4f856.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e070e973-7766-4d2c-9cd7-31c7b9f4f856
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ec7f41cda92fbc0f49c16f21d7a1a7c224d970cb0c15a4be82790f24a50ff89","name":"J Black","registered_at":"2026-06-21T06:35:32Z","symbol":"NIM1850037","token_address":"0x0ff7507fd48883b38cb67f4712c16db3a6296574","type":"artist","uuid":"e070e973-7766-4d2c-9cd7-31c7b9f4f856"}
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 0x2ec7f41cda92fbc0f49c16f21d7a1a7c224d970cb0c15a4be82790f24a50ff89. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e070e973-7766-4d2c-9cd7-31c7b9f4f856.json and https://artists.proofprofile.net/proofs/artist/e070e973-7766-4d2c-9cd7-31c7b9f4f856.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x2ec7f41cda92fbc0f49c16f21d7a1a7c224d970cb0c15a4be82790f24a50ff89","name":"J Black","registered_at":"2026-06-21T06:35:32Z","symbol":"NIM1850037","token_address":"0x0ff7507fd48883b38cb67f4712c16db3a6296574","type":"artist","uuid":"e070e973-7766-4d2c-9cd7-31c7b9f4f856"}
album: Existential Hole 006
  type: MusicAlbum
  date published: 2017-08-08
album: Tous les memes
  type: MusicAlbum
  date published: 2018-12-28
album: MBC 기억록 X 제이블랙 광복 74주년 기념 퍼포먼스 송
  type: MusicAlbum
  date published: 2019-08-15
album: Keys
  type: MusicAlbum
  date published: 2021-04-23
album: Eres Peor
  type: MusicAlbum
  date published: 2022-08-05
track: What More Can I Say
  type: MusicRecording
  duration: PT7M0S
  duration ms: 420989
  explicit: false
  by artist: GI JOE OMG
  by artist: J Black
  in album: Believe Me
    type: MusicAlbum
    date published: 2020-03-31
  genre: west-coast-trap
  isrc code: QZFZ62065244
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T10:43:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe1b574573f1e9fb1ed9a1b4d6cdf998f3d2111db1a541af60202f99c828317fc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ62065244
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xe1b574573f1e9fb1ed9a1b4d6cdf998f3d2111db1a541af60202f99c828317fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZFZ62065244.
    date published: 2026-07-02T03:30:09Z
  audio: What More Can I Say
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 180.036
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.549
    additional property: Energy
      type: PropertyValue
      value: 0.458
    additional property: Speechiness
      type: PropertyValue
      value: 0.625
    additional property: Acousticness
      type: PropertyValue
      value: 0.183
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.297
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.291
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.756
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor