Kim Won Joo
type: MusicGroup
genre: k-ballad
popularity: 9
followers: 485
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x780f29c312be49d73cb4b518d227181d487927b347394b47059bd8482ee07a49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953857
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:34:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x780f29c312be49d73cb4b518d227181d487927b347394b47059bd8482ee07a49","name":"Kim Won Joo","registered_at":"2026-06-15T14:25:52Z","symbol":"NIM0736372","token_address":"0x7c326540cc6fdd1317dc45a54d662e3c73236372","type":"artist","uuid":"02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4"}
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 0x780f29c312be49d73cb4b518d227181d487927b347394b47059bd8482ee07a49. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4.json and https://artists.proofprofile.net/proofs/artist/02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:34:38Z
  text: {"copyright_id":"0x780f29c312be49d73cb4b518d227181d487927b347394b47059bd8482ee07a49","name":"Kim Won Joo","registered_at":"2026-06-15T14:25:52Z","symbol":"NIM0736372","token_address":"0x7c326540cc6fdd1317dc45a54d662e3c73236372","type":"artist","uuid":"02d5aaa0-9e97-4fcd-a3aa-53f6d83019b4"}
album: Winter Sonata
  type: MusicAlbum
  date published: 2011-12-29
album: 겨울연가
  type: MusicAlbum
  date published: 2011-12-29
album: 4MEN The Solo Project #2 Kim Won Joo
  type: MusicAlbum
  date published: 2013-10-07
album: Limitless Power OST Part 2
  type: MusicAlbum
  date published: 2013-12-05
album: Wedding
  type: MusicAlbum
  date published: 2019-09-29
album: SPRING
  type: MusicAlbum
  date published: 2020-04-17
album: SPRING
  type: MusicAlbum
  date published: 2020-04-17
album: SPRING
  type: MusicAlbum
  date published: 2020-04-17
track: Every day
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225680
  explicit: false
  by artist: Shin Yong Jae
  by artist: Kim Won Joo
  in album: Dear
    type: MusicAlbum
    date published: 2020-07-01
  genre: soundtrack
  genre: k-ballad
  isrc code: KRC452000011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T12:46:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b23cf694d9f4cd246896f150794ebfef38f34da268f669118fbee127daff994
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRC452000011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x6b23cf694d9f4cd246896f150794ebfef38f34da268f669118fbee127daff994. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/KRC452000011.
    date published: 2026-07-02T03:55:08Z
  audio: Every day
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.503
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.441
    additional property: Energy
      type: PropertyValue
      value: 0.488
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.599
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.277
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.594
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major