YUJIN CHOI
type: MusicGroup
popularity: 4
followers: 441
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c3f0c9860202180f818b4efc4c655490606063b51ae26aa5f5cd4c6c19591c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb09b932-812e-4468-af70-2a60025b03c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb09b932-812e-4468-af70-2a60025b03c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb09b932-812e-4468-af70-2a60025b03c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c3f0c9860202180f818b4efc4c655490606063b51ae26aa5f5cd4c6c19591c3","name":"YUJIN CHOI","registered_at":"2026-06-20T23:10:27Z","symbol":"NIM1740772","token_address":"0x1beb9abb1694f325666eb19f675f3f06cb8d3633","type":"artist","uuid":"cb09b932-812e-4468-af70-2a60025b03c3"}
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 0x3c3f0c9860202180f818b4efc4c655490606063b51ae26aa5f5cd4c6c19591c3. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb09b932-812e-4468-af70-2a60025b03c3.json and https://artists.proofprofile.net/proofs/artist/cb09b932-812e-4468-af70-2a60025b03c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x3c3f0c9860202180f818b4efc4c655490606063b51ae26aa5f5cd4c6c19591c3","name":"YUJIN CHOI","registered_at":"2026-06-20T23:10:27Z","symbol":"NIM1740772","token_address":"0x1beb9abb1694f325666eb19f675f3f06cb8d3633","type":"artist","uuid":"cb09b932-812e-4468-af70-2a60025b03c3"}
album: Stay With Me
  type: MusicAlbum
  date published: 2021-01-25
album: Shining Love
  type: MusicAlbum
  date published: 2021-05-24
  track: Shining Love
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222352
    explicit: false
    by artist: YUJIN CHOI
    in album: Shining Love
      type: MusicAlbum
      date published: 2021-05-24
    isrc code: KRMIM2121672
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:47:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x117288f79aa49091f299402ce5bbf08524deec6f9ad807ff9577d77c1df5e724
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRMIM2121672
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T19:49:13Z
    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 0x117288f79aa49091f299402ce5bbf08524deec6f9ad807ff9577d77c1df5e724. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:49:13Z), 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/KRMIM2121672.
      date published: 2026-07-15T19:49:13Z
    audio: Shining Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.884
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.544
      additional property: Energy
        type: PropertyValue
        value: 0.772
      additional property: Speechiness
        type: PropertyValue
        value: 0.08
      additional property: Acousticness
        type: PropertyValue
        value: 0.16
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.129
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.467
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.75
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Paradise
  type: MusicAlbum
  date published: 2021-08-23