JK Kim Dong Uk
type: MusicGroup
genre: k-ballad
popularity: 20
followers: 3668
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa786a873a6b3870edff5d2c3ee4ea515eab495adf1dd04384d7a0946b16db9a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953773
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953773
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:40:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa786a873a6b3870edff5d2c3ee4ea515eab495adf1dd04384d7a0946b16db9a4","name":"JK Kim Dong Uk","registered_at":"2026-06-15T01:44:12Z","symbol":"NIM0642894","token_address":"0xd150bb973ffcb854c62e946d2b0044bcdae0b7d4","type":"artist","uuid":"c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae"}
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 0xa786a873a6b3870edff5d2c3ee4ea515eab495adf1dd04384d7a0946b16db9a4. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae.json and https://artists.proofprofile.net/proofs/artist/c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:40:45Z
  text: {"copyright_id":"0xa786a873a6b3870edff5d2c3ee4ea515eab495adf1dd04384d7a0946b16db9a4","name":"JK Kim Dong Uk","registered_at":"2026-06-15T01:44:12Z","symbol":"NIM0642894","token_address":"0xd150bb973ffcb854c62e946d2b0044bcdae0b7d4","type":"artist","uuid":"c9ea2697-23d1-45ab-961c-fa3a1ecdc6ae"}
album: 윤일상 작곡가 21주년 기념 앨범 I'm 21 Part.2
  type: MusicAlbum
  date published: 2012-01-18
track: Beautiful World

Beautiful World
type: MusicRecording
duration: PT4M38S
duration ms: 278287
explicit: false
by artist: The One
by artist: Girl's Day
by artist: B.A.P
by artist: JK Kim Dong Uk
by artist: Ji Chang Wook
by artist: Jo Sung Mo
by artist: Lee Young Hyun
by artist: YOARI
in album: Hooxi, The Beginning
  type: MusicAlbum
  date published: 2016-12-22
isrc code: KRA341650523
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:20:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0871bc84a1796f86daa25cf9f9778c6cecd6ebe95d521ff84ca168e51baf5e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341650523
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0871bc84a1796f86daa25cf9f9778c6cecd6ebe95d521ff84ca168e51baf5e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA341650523.
  date published: 2026-06-13T15:41:10Z
audio: Beautiful World
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.229
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.383
  additional property: Energy
    type: PropertyValue
    value: 0.644
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.507
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.395
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.149
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major