깡다구
type: MusicGroup
genre: k-ballad
popularity: 3
followers: 35
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcda172fe5c7c53d4b36776ae4a20f3523061e12574e86ddb8f06677606ddb296
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/45485941-80fb-4cf3-adb2-c31159ca22cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45485941-80fb-4cf3-adb2-c31159ca22cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45485941-80fb-4cf3-adb2-c31159ca22cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcda172fe5c7c53d4b36776ae4a20f3523061e12574e86ddb8f06677606ddb296","name":"깡다구","registered_at":"2026-06-16T13:41:26Z","symbol":"NIM1069472","token_address":"0x59b941e07ce6f070f0947c95eecd8c0f8b54e5ee","type":"artist","uuid":"45485941-80fb-4cf3-adb2-c31159ca22cf"}
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 0xcda172fe5c7c53d4b36776ae4a20f3523061e12574e86ddb8f06677606ddb296. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45485941-80fb-4cf3-adb2-c31159ca22cf.json and https://artists.proofprofile.net/proofs/artist/45485941-80fb-4cf3-adb2-c31159ca22cf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0xcda172fe5c7c53d4b36776ae4a20f3523061e12574e86ddb8f06677606ddb296","name":"깡다구","registered_at":"2026-06-16T13:41:26Z","symbol":"NIM1069472","token_address":"0x59b941e07ce6f070f0947c95eecd8c0f8b54e5ee","type":"artist","uuid":"45485941-80fb-4cf3-adb2-c31159ca22cf"}
album: 뇌순남
  type: MusicAlbum
  date published: 2015-11-06
album: 친구아이가
  type: MusicAlbum
  date published: 2017-01-18
  track: 친구아이가
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214595
    explicit: false
    by artist: 깡다구
    in album: 친구아이가
      type: MusicAlbum
      date published: 2017-01-18
    genre: k-ballad
    isrc code: KRA341700296
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T08:28:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a92cedb0409ac1b4b6e3d651c55307b18e90206e6f935a4aac42879d22a4421
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958526
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958526
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341700296
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:09:53Z
    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 0x0a92cedb0409ac1b4b6e3d651c55307b18e90206e6f935a4aac42879d22a4421. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341700296 — a six-check JSON result.
      date published: 2026-07-18T09:09:53Z
    audio: 친구아이가
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.384
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.52
      additional property: Energy
        type: PropertyValue
        value: 0.847
      additional property: Speechiness
        type: PropertyValue
        value: 0.249
      additional property: Acousticness
        type: PropertyValue
        value: 0.417
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.353
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.769
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ZZIKEUREGI
  type: MusicAlbum
  date published: 2023-11-25