Ji Liu
type: MusicGroup
genre: classical piano
popularity: 7
followers: 635
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x648e6ff70b06eacb359f694ee1d592fac0aad19ed90b08cc8d3f19498b691778
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5190890c-c0b6-4c62-bf42-087b1a0c9d8c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5190890c-c0b6-4c62-bf42-087b1a0c9d8c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5190890c-c0b6-4c62-bf42-087b1a0c9d8c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x648e6ff70b06eacb359f694ee1d592fac0aad19ed90b08cc8d3f19498b691778","name":"Ji Liu","registered_at":"2026-06-16T18:06:22Z","symbol":"NIM1132679","token_address":"0x9a80ee023b35e9feb839cf45b61c946b05f90c47","type":"artist","uuid":"5190890c-c0b6-4c62-bf42-087b1a0c9d8c"}
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 0x648e6ff70b06eacb359f694ee1d592fac0aad19ed90b08cc8d3f19498b691778. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5190890c-c0b6-4c62-bf42-087b1a0c9d8c.json and https://artists.proofprofile.net/proofs/artist/5190890c-c0b6-4c62-bf42-087b1a0c9d8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x648e6ff70b06eacb359f694ee1d592fac0aad19ed90b08cc8d3f19498b691778","name":"Ji Liu","registered_at":"2026-06-16T18:06:22Z","symbol":"NIM1132679","token_address":"0x9a80ee023b35e9feb839cf45b61c946b05f90c47","type":"artist","uuid":"5190890c-c0b6-4c62-bf42-087b1a0c9d8c"}
album: Piano Reflections
  type: MusicAlbum
  date published: 2014-01-01
  track: Suite bergamasque, L. 75: 3. Clair de lune
    type: MusicRecording
    duration: PT5M10S
    duration ms: 310666
    explicit: false
    by artist: Ji Liu
    in album: Piano Reflections
      type: MusicAlbum
      date published: 2014-01-01
    genre: classical piano
    isrc code: GBPGU1300085
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:12:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x49e46903e7e271c9d6924dcb64dc379df8df03c241fcad95e387c487e0603068
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958917
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958917
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPGU1300085
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T17:53:56Z
    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 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 0x49e46903e7e271c9d6924dcb64dc379df8df03c241fcad95e387c487e0603068. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBPGU1300085.
      date published: 2026-07-20T17:53:56Z
    audio: Suite bergamasque, L. 75: 3. Clair de lune
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 68.063
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.273
      additional property: Energy
        type: PropertyValue
        value: 0.006
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.878
      additional property: Liveness
        type: PropertyValue
        value: 0.064
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
        type: PropertyValue
        value: -32.285
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Piano Encores
  type: MusicAlbum
  date published: 2015-01-19
album: Fire & Water
  type: MusicAlbum
  date published: 2018-01-19
album: Fire & Water
  type: MusicAlbum
  date published: 2018-01-26
album: Sonata Fantasy "The Book of Moments"
  type: MusicAlbum
  date published: 2022-05-20
album: The Book of Moments, Sonata Fantasy
  type: MusicAlbum
  date published: 2022-05-20