Classic Harp
type: MusicGroup
popularity: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b49e846b986bb2b208d0c09442a31dc150299c3ec48a4e6817a10ec0de1530b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b49e846b986bb2b208d0c09442a31dc150299c3ec48a4e6817a10ec0de1530b","name":"Classic Harp","registered_at":"2026-06-20T22:14:49Z","symbol":"NIM1730841","token_address":"0x249db8d0550de68471a3dac3eb9405d658adcc84","type":"artist","uuid":"c9a47d03-b98f-4aba-aeb7-97cd30644444"}
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 0x8b49e846b986bb2b208d0c09442a31dc150299c3ec48a4e6817a10ec0de1530b. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.json and https://artists.proofprofile.net/proofs/artist/c9a47d03-b98f-4aba-aeb7-97cd30644444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x8b49e846b986bb2b208d0c09442a31dc150299c3ec48a4e6817a10ec0de1530b","name":"Classic Harp","registered_at":"2026-06-20T22:14:49Z","symbol":"NIM1730841","token_address":"0x249db8d0550de68471a3dac3eb9405d658adcc84","type":"artist","uuid":"c9a47d03-b98f-4aba-aeb7-97cd30644444"}
album: 잔잔한 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
  type: MusicAlbum
  date published: 2018-08-16
  track: Chopin : 24 Preludes No.3 In G Major Op.28 (쇼팽 : 24개의 전주곡 3번 사장조 작품번호 28)
    type: MusicRecording
    duration: PT1M6S
    duration ms: 66977
    explicit: false
    by artist: Classic Harp
    in album: 잔잔한 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
      type: MusicAlbum
      date published: 2018-08-16
    isrc code: KSA002200616
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T10:14:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70c4e6fe7fcff776aa568855ff2c28c67b809564ee5eb8de39d6d1a7c0971bb9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958865
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958865
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KSA002200616
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T13:09:41Z
    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 0x70c4e6fe7fcff776aa568855ff2c28c67b809564ee5eb8de39d6d1a7c0971bb9. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:09:41Z), 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/KSA002200616.
      date published: 2026-07-20T13:09:41Z
    audio: Chopin : 24 Preludes No.3 In G Major Op.28 (쇼팽 : 24개의 전주곡 3번 사장조 작품번호 28)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.239
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.447
      additional property: Energy
        type: PropertyValue
        value: 0.073
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.98
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.955
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.076
      additional property: Loudness (dB)
        type: PropertyValue
        value: -20.501
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 아름다운 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
  type: MusicAlbum
  date published: 2018-08-16
album: 감성적인 하프 선율로 연주하는 클래식 명곡 모음 (불면증,자장가,태교,숙면,병원,심리치료)
  type: MusicAlbum
  date published: 2018-08-16