Zufentus Purba
type: MusicGroup
genre: batak
popularity: 6
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bb39604707d880afd6ac529739088feb02cad39dc09acec739bbc1f369213f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b79ea23c-5ade-4328-925f-c96cb89268c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b79ea23c-5ade-4328-925f-c96cb89268c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b79ea23c-5ade-4328-925f-c96cb89268c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2bb39604707d880afd6ac529739088feb02cad39dc09acec739bbc1f369213f9","name":"Zufentus Purba","registered_at":"2026-06-20T15:30:49Z","symbol":"NIM1643412","token_address":"0x630b3ce7ae7acace69c2eacdab6dd42a21dc3586","type":"artist","uuid":"b79ea23c-5ade-4328-925f-c96cb89268c2"}
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 0x2bb39604707d880afd6ac529739088feb02cad39dc09acec739bbc1f369213f9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b79ea23c-5ade-4328-925f-c96cb89268c2.json and https://artists.proofprofile.net/proofs/artist/b79ea23c-5ade-4328-925f-c96cb89268c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2bb39604707d880afd6ac529739088feb02cad39dc09acec739bbc1f369213f9","name":"Zufentus Purba","registered_at":"2026-06-20T15:30:49Z","symbol":"NIM1643412","token_address":"0x630b3ce7ae7acace69c2eacdab6dd42a21dc3586","type":"artist","uuid":"b79ea23c-5ade-4328-925f-c96cb89268c2"}
album: Enam Senar
  type: MusicAlbum
  date published: 2022-10-04
album: Paris Ni Udan
  type: MusicAlbum
  date published: 2023-09-26
  track: Paris Ni Udan
    type: MusicRecording
    duration: PT5M36S
    duration ms: 336193
    explicit: false
    by artist: Zufentus Purba
    in album: Paris Ni Udan
      type: MusicAlbum
      date published: 2023-09-26
    genre: batak
    isrc code: QZYHM2363065
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T18:54:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x76b1f7d51346fbbe341d21fc3e8def0bc9cb58486d27360f45e8f327e68afd30
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957744
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957744
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYHM2363065
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T19:15:44Z
    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 0x76b1f7d51346fbbe341d21fc3e8def0bc9cb58486d27360f45e8f327e68afd30. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZYHM2363065.
      date published: 2026-07-12T19:15:44Z
    audio: Paris Ni Udan
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.869
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.632
      additional property: Energy
        type: PropertyValue
        value: 0.257
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.775
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.114
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.049
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor