발라드 연구원
type: MusicGroup
genre: k-ballad
popularity: 5
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf41879aa3a7af2bc36dcf06d7445a6801998a32c0ae5b3bd7c1e89a59075530d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad56a5ea-3c21-4263-8f02-df16984cf170.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad56a5ea-3c21-4263-8f02-df16984cf170.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad56a5ea-3c21-4263-8f02-df16984cf170
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf41879aa3a7af2bc36dcf06d7445a6801998a32c0ae5b3bd7c1e89a59075530d","name":"발라드 연구원","registered_at":"2026-06-20T10:09:06Z","symbol":"NIM1588903","token_address":"0x2664b22231c8358ef4229ce08898eb33ce66049c","type":"artist","uuid":"ad56a5ea-3c21-4263-8f02-df16984cf170"}
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 0xf41879aa3a7af2bc36dcf06d7445a6801998a32c0ae5b3bd7c1e89a59075530d. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad56a5ea-3c21-4263-8f02-df16984cf170.json and https://artists.proofprofile.net/proofs/artist/ad56a5ea-3c21-4263-8f02-df16984cf170.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xf41879aa3a7af2bc36dcf06d7445a6801998a32c0ae5b3bd7c1e89a59075530d","name":"발라드 연구원","registered_at":"2026-06-20T10:09:06Z","symbol":"NIM1588903","token_address":"0x2664b22231c8358ef4229ce08898eb33ce66049c","type":"artist","uuid":"ad56a5ea-3c21-4263-8f02-df16984cf170"}
album: 인기 발라드 히트 모음 7집
  type: MusicAlbum
  date published: 2018-05-02
  track: All For You
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248267
    explicit: false
    by artist: 발라드 연구원
    in album: 인기 발라드 히트 모음 7집
      type: MusicAlbum
      date published: 2018-05-02
    genre: k-ballad
    isrc code: QZEKE1905234
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:24:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f91bb011ce58f152b03c6193366096d9bfe5fea3e568b3712bd7b28ccff0d7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEKE1905234
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x3f91bb011ce58f152b03c6193366096d9bfe5fea3e568b3712bd7b28ccff0d7a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZEKE1905234.
      date published: 2026-07-05T19:27:56Z
    audio: All For You
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 207.812
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.493
      additional property: Energy
        type: PropertyValue
        value: 0.694
      additional property: Speechiness
        type: PropertyValue
        value: 0.08
      additional property: Acousticness
        type: PropertyValue
        value: 0.157
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.15
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.294
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.25
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 인기 발라드 히트 모음 8집
  type: MusicAlbum
  date published: 2018-05-04
album: 8090 추억의 히트 가요 모음 6집
  type: MusicAlbum
  date published: 2018-07-03
album: 인기 발라드 히트 모음 10집
  type: MusicAlbum
  date published: 2018-07-09
album: 인기 발라드 히트 모음집 11집
  type: MusicAlbum
  date published: 2018-11-30