Kim Changsun
type: MusicGroup
popularity: 2
followers: 1636
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3187d470c2daa6d88a251f19b57d70f67993353dfbd360cbf2dc766da88e9c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/459814f3-a122-4312-bb49-badb7b7ce664.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/459814f3-a122-4312-bb49-badb7b7ce664.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/459814f3-a122-4312-bb49-badb7b7ce664
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc3187d470c2daa6d88a251f19b57d70f67993353dfbd360cbf2dc766da88e9c0","name":"Kim Changsun","registered_at":"2026-06-16T13:48:27Z","symbol":"NIM1071141","token_address":"0xb9935fc35a1485d323658bff81d773967a3645a1","type":"artist","uuid":"459814f3-a122-4312-bb49-badb7b7ce664"}
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 0xc3187d470c2daa6d88a251f19b57d70f67993353dfbd360cbf2dc766da88e9c0. 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/459814f3-a122-4312-bb49-badb7b7ce664.json and https://artists.proofprofile.net/proofs/artist/459814f3-a122-4312-bb49-badb7b7ce664.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc3187d470c2daa6d88a251f19b57d70f67993353dfbd360cbf2dc766da88e9c0","name":"Kim Changsun","registered_at":"2026-06-16T13:48:27Z","symbol":"NIM1071141","token_address":"0xb9935fc35a1485d323658bff81d773967a3645a1","type":"artist","uuid":"459814f3-a122-4312-bb49-badb7b7ce664"}
album: Mecard ball Opening song
  type: MusicAlbum
  date published: 2021-08-27
  track: mecard ball
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89976
    explicit: false
    by artist: Kim Changsun
    in album: Mecard ball Opening song
      type: MusicAlbum
      date published: 2021-08-27
    isrc code: KRA382160491
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:37:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe80d1b89d6fc5b88cb4e54f568f126016836524519945e3f8dacf42b98d56b17
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382160491
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0xe80d1b89d6fc5b88cb4e54f568f126016836524519945e3f8dacf42b98d56b17. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRA382160491.
      date published: 2026-07-05T12:31:54Z
    audio: mecard ball
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.09
      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: 0.543
      additional property: Energy
        type: PropertyValue
        value: 0.908
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.019
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.33
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.686
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.699
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor