KOSU YK
type: MusicGroup
popularity: 2
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9101349b1913d199f9db1ac941d3ad5e830f444a6b9cfd72b4c92edc8eab1fbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77d89fcf-8baf-4974-bc75-20e8b20d0d65.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77d89fcf-8baf-4974-bc75-20e8b20d0d65.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77d89fcf-8baf-4974-bc75-20e8b20d0d65
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9101349b1913d199f9db1ac941d3ad5e830f444a6b9cfd72b4c92edc8eab1fbd","name":"KOSU YK","registered_at":"2026-06-17T07:47:24Z","symbol":"NIM1328560","token_address":"0x6dc2a90902382e20fbf3486174d6e6ab70269148","type":"artist","uuid":"77d89fcf-8baf-4974-bc75-20e8b20d0d65"}
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 0x9101349b1913d199f9db1ac941d3ad5e830f444a6b9cfd72b4c92edc8eab1fbd. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77d89fcf-8baf-4974-bc75-20e8b20d0d65.json and https://artists.proofprofile.net/proofs/artist/77d89fcf-8baf-4974-bc75-20e8b20d0d65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x9101349b1913d199f9db1ac941d3ad5e830f444a6b9cfd72b4c92edc8eab1fbd","name":"KOSU YK","registered_at":"2026-06-17T07:47:24Z","symbol":"NIM1328560","token_address":"0x6dc2a90902382e20fbf3486174d6e6ab70269148","type":"artist","uuid":"77d89fcf-8baf-4974-bc75-20e8b20d0d65"}
album: On Ya Zone
  type: MusicAlbum
  date published: 2024-03-23
album: G&W
  type: MusicAlbum
  date published: 2024-05-03
album: Late Night
  type: MusicAlbum
  date published: 2024-06-09
  track: Late Night
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141221
    explicit: true
    by artist: KOSU YK
    in album: Late Night
      type: MusicAlbum
      date published: 2024-06-09
    isrc code: TCAII2488402
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T04:14:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x10519b2c2569245ebdfb5de950d382c632d85c4e5b58062cbefafc3099962273
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958965
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958965
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAII2488402
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:29:05Z
    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 0x10519b2c2569245ebdfb5de950d382c632d85c4e5b58062cbefafc3099962273. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAII2488402.
      date published: 2026-07-21T04:29:05Z
    audio: Late Night
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.944
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.683
      additional property: Energy
        type: PropertyValue
        value: 0.425
      additional property: Speechiness
        type: PropertyValue
        value: 0.091
      additional property: Acousticness
        type: PropertyValue
        value: 0.046
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.19
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.5
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.381
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Letter P
  type: MusicAlbum
  date published: 2024-10-29