Ko Kang Sil
type: MusicGroup
popularity: 2
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d0918179a961be8d9a46decef74b2d7dc1fa3cfaa1b0cac4f15250b1e459fde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0585028a-5a91-49d7-b69b-fbcf5b0a29ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0585028a-5a91-49d7-b69b-fbcf5b0a29ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0585028a-5a91-49d7-b69b-fbcf5b0a29ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d0918179a961be8d9a46decef74b2d7dc1fa3cfaa1b0cac4f15250b1e459fde","name":"Ko Kang Sil","registered_at":"2026-06-15T15:21:29Z","symbol":"NIM0749652","token_address":"0x517a3a308cd8d656c51c42f425b1a58cff3c7797","type":"artist","uuid":"0585028a-5a91-49d7-b69b-fbcf5b0a29ea"}
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 0x5d0918179a961be8d9a46decef74b2d7dc1fa3cfaa1b0cac4f15250b1e459fde. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0585028a-5a91-49d7-b69b-fbcf5b0a29ea.json and https://artists.proofprofile.net/proofs/artist/0585028a-5a91-49d7-b69b-fbcf5b0a29ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x5d0918179a961be8d9a46decef74b2d7dc1fa3cfaa1b0cac4f15250b1e459fde","name":"Ko Kang Sil","registered_at":"2026-06-15T15:21:29Z","symbol":"NIM0749652","token_address":"0x517a3a308cd8d656c51c42f425b1a58cff3c7797","type":"artist","uuid":"0585028a-5a91-49d7-b69b-fbcf5b0a29ea"}
album: Take Me Home 帶我回家吧
  type: MusicAlbum
  date published: 2018-05-30
  track: The Night Before You Left 在你離開前的夜晚 - 鋼琴獨奏
    type: MusicRecording
    duration: PT5M41S
    duration ms: 341298
    explicit: false
    by artist: Ko Kang Sil
    in album: Take Me Home 帶我回家吧
      type: MusicAlbum
      date published: 2018-05-30
    isrc code: KRA341328117
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:13:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70ea70629980c18a3237d44dc0340455c66312d4d0994ad1df8d50f81337e6a7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341328117
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x70ea70629980c18a3237d44dc0340455c66312d4d0994ad1df8d50f81337e6a7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRA341328117.
      date published: 2026-07-05T10:01:46Z
    audio: The Night Before You Left 在你離開前的夜晚 - 鋼琴獨奏
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.466
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.367
      additional property: Energy
        type: PropertyValue
        value: 0.039
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.991
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.932
      additional property: Liveness
        type: PropertyValue
        value: 0.06
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.051
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.664
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor