Yejun Kang
type: MusicGroup
popularity: 21
followers: 466
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91d68b6bf6d45500d15c786bd8f5d09c254da3dd8b6248e87fd616a80e818708
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/774d6373-d0fb-40e9-a448-2ac673ebdc87.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/774d6373-d0fb-40e9-a448-2ac673ebdc87.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/774d6373-d0fb-40e9-a448-2ac673ebdc87
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91d68b6bf6d45500d15c786bd8f5d09c254da3dd8b6248e87fd616a80e818708","name":"Yejun Kang","registered_at":"2026-06-12T01:14:29Z","symbol":"NIM0153452","token_address":"0x49374560991c6043ee8a77b3d26ee4ff7d49d688","type":"artist","uuid":"774d6373-d0fb-40e9-a448-2ac673ebdc87"}
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 0x91d68b6bf6d45500d15c786bd8f5d09c254da3dd8b6248e87fd616a80e818708. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/774d6373-d0fb-40e9-a448-2ac673ebdc87.json and https://artists.proofprofile.net/proofs/artist/774d6373-d0fb-40e9-a448-2ac673ebdc87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x91d68b6bf6d45500d15c786bd8f5d09c254da3dd8b6248e87fd616a80e818708","name":"Yejun Kang","registered_at":"2026-06-12T01:14:29Z","symbol":"NIM0153452","token_address":"0x49374560991c6043ee8a77b3d26ee4ff7d49d688","type":"artist","uuid":"774d6373-d0fb-40e9-a448-2ac673ebdc87"}
album: Somewhere in My Mind (마음 속 어딘가)
  type: MusicAlbum
  date published: 2017-09-21
album: 마음 속 어딘가 Somewhere in My Mind
  type: MusicAlbum
  date published: 2017-09-21
album: 너 몰래 (Secretly Loving You)
  type: MusicAlbum
  date published: 2018-06-15
album: 서글픈 불면증
  type: MusicAlbum
  date published: 2018-09-19
album: 사랑일까
  type: MusicAlbum
  date published: 2018-09-19
  track: 사랑일까
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173957
    explicit: false
    by artist: Yejun Kang
    in album: 사랑일까
      type: MusicAlbum
      date published: 2018-09-19
    isrc code: KRA0R1800217
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T20:54:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x82dc5429da24f7e176bcb97b469ed458227c3cedfd6db66240d0cffb9ce43b68
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958607
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958607
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA0R1800217
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:01:11Z
    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 0x82dc5429da24f7e176bcb97b469ed458227c3cedfd6db66240d0cffb9ce43b68. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA0R1800217.
      date published: 2026-07-18T21:01:11Z
    audio: 사랑일까
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.95
      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: 0.625
      additional property: Energy
        type: PropertyValue
        value: 0.532
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.377
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.199
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.395
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.135
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 나 요즘
  type: MusicAlbum
  date published: 2018-09-28