Justin Jia
type: MusicGroup
popularity: 5
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d6fc51c3f1d5ce6208ddd96d0ffa2d68f1d5b56f110fcdb00628a3f8ae4f0dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5867b728-d423-4bf6-a26b-e70c709a71ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5867b728-d423-4bf6-a26b-e70c709a71ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5867b728-d423-4bf6-a26b-e70c709a71ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d6fc51c3f1d5ce6208ddd96d0ffa2d68f1d5b56f110fcdb00628a3f8ae4f0dd","name":"Justin Jia","registered_at":"2026-06-16T20:22:31Z","symbol":"NIM1165180","token_address":"0x26571831c86fc07ae2990b7af5332cd43b239366","type":"artist","uuid":"5867b728-d423-4bf6-a26b-e70c709a71ca"}
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 0x9d6fc51c3f1d5ce6208ddd96d0ffa2d68f1d5b56f110fcdb00628a3f8ae4f0dd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5867b728-d423-4bf6-a26b-e70c709a71ca.json and https://artists.proofprofile.net/proofs/artist/5867b728-d423-4bf6-a26b-e70c709a71ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9d6fc51c3f1d5ce6208ddd96d0ffa2d68f1d5b56f110fcdb00628a3f8ae4f0dd","name":"Justin Jia","registered_at":"2026-06-16T20:22:31Z","symbol":"NIM1165180","token_address":"0x26571831c86fc07ae2990b7af5332cd43b239366","type":"artist","uuid":"5867b728-d423-4bf6-a26b-e70c709a71ca"}
album: JJ's Erhu Covers
  type: MusicAlbum
  date published: 2018-01-13
  track: Comptine d'un autre été
    type: MusicRecording
    duration: PT4M38S
    duration ms: 278693
    explicit: false
    by artist: Justin Jia
    in album: JJ's Erhu Covers
      type: MusicAlbum
      date published: 2018-01-13
    isrc code: QZAPG1843200
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:04:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2bf9abacd346e596b5b3331d3fb8e069e94d35c1c8ddca333384b4e613046c54
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958170
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958170
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAPG1843200
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:21:50Z
    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 0x2bf9abacd346e596b5b3331d3fb8e069e94d35c1c8ddca333384b4e613046c54. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZAPG1843200.
      date published: 2026-07-15T16:21:50Z
    audio: Comptine d'un autre été
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.145
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.478
      additional property: Energy
        type: PropertyValue
        value: 0.038
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.981
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.907
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.247
      additional property: Loudness (dB)
        type: PropertyValue
        value: -27.223
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major