Le Van Bao
type: MusicGroup
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcde7b3c2a1cce008e4b7a56632a660d33caeef88f488700cd125aa0e7862ea86
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/daa75631-1f70-4745-8dbd-3f906b5da73f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/daa75631-1f70-4745-8dbd-3f906b5da73f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/daa75631-1f70-4745-8dbd-3f906b5da73f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcde7b3c2a1cce008e4b7a56632a660d33caeef88f488700cd125aa0e7862ea86","name":"Le Van Bao","registered_at":"2026-06-21T04:22:34Z","symbol":"NIM1818328","token_address":"0x0deb65fbfec678ccc6736cc4daa682b424a06656","type":"artist","uuid":"daa75631-1f70-4745-8dbd-3f906b5da73f"}
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 0xcde7b3c2a1cce008e4b7a56632a660d33caeef88f488700cd125aa0e7862ea86. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daa75631-1f70-4745-8dbd-3f906b5da73f.json and https://artists.proofprofile.net/proofs/artist/daa75631-1f70-4745-8dbd-3f906b5da73f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xcde7b3c2a1cce008e4b7a56632a660d33caeef88f488700cd125aa0e7862ea86","name":"Le Van Bao","registered_at":"2026-06-21T04:22:34Z","symbol":"NIM1818328","token_address":"0x0deb65fbfec678ccc6736cc4daa682b424a06656","type":"artist","uuid":"daa75631-1f70-4745-8dbd-3f906b5da73f"}
album: Anh Vui Dril
  type: MusicAlbum
  date published: 2025-08-22
  track: Anh Vui Dril
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195256
    explicit: true
    by artist: Le Van Bao
    in album: Anh Vui Dril
      type: MusicAlbum
      date published: 2025-08-22
    isrc code: QT5M32584149
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T21:44:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8461c02db7c07ae8c1933c4335ff88c69967017234b09f4cfd38badbc473eddf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT5M32584149
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x8461c02db7c07ae8c1933c4335ff88c69967017234b09f4cfd38badbc473eddf. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT5M32584149 — a six-check JSON result.
      date published: 2026-07-04T10:04:33Z
    audio: Anh Vui Dril
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.994
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.734
      additional property: Energy
        type: PropertyValue
        value: 0.725
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.177
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.143
      additional property: Liveness
        type: PropertyValue
        value: 0.548
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.522
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.097
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor