Võ Viết Duy Khiêm
type: MusicGroup
popularity: 2
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe18b8f376f41cacb31cc379129aef1e8f8a5b419dd42b72c6d19860473ad6d1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace15e0f-1351-4eb6-8b3c-3d2c66371868.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ace15e0f-1351-4eb6-8b3c-3d2c66371868.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ace15e0f-1351-4eb6-8b3c-3d2c66371868
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe18b8f376f41cacb31cc379129aef1e8f8a5b419dd42b72c6d19860473ad6d1b","name":"Võ Viết Duy Khiêm","registered_at":"2026-06-20T10:39:39Z","symbol":"NIM1593434","token_address":"0x67d757b2e13b33e69bc79b0a784856037cddd747","type":"artist","uuid":"ace15e0f-1351-4eb6-8b3c-3d2c66371868"}
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 0xe18b8f376f41cacb31cc379129aef1e8f8a5b419dd42b72c6d19860473ad6d1b. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ace15e0f-1351-4eb6-8b3c-3d2c66371868.json and https://artists.proofprofile.net/proofs/artist/ace15e0f-1351-4eb6-8b3c-3d2c66371868.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xe18b8f376f41cacb31cc379129aef1e8f8a5b419dd42b72c6d19860473ad6d1b","name":"Võ Viết Duy Khiêm","registered_at":"2026-06-20T10:39:39Z","symbol":"NIM1593434","token_address":"0x67d757b2e13b33e69bc79b0a784856037cddd747","type":"artist","uuid":"ace15e0f-1351-4eb6-8b3c-3d2c66371868"}
album: Tết Đong Đầy
  type: MusicAlbum
  date published: 2024-12-07
album: Trương Đình Hoàng
  type: MusicAlbum
  date published: 2024-12-16
  track: Trương Đình Hoàng
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154383
    explicit: true
    by artist: Võ Viết Duy Khiêm
    in album: Trương Đình Hoàng
      type: MusicAlbum
      date published: 2024-12-16
    isrc code: QZLQR2133270
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:46:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a3549fd22368f7a2c7e1c5ed8bbad46cc0e09f9fbfcea3ebc0a89d53c1ec001
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZLQR2133270
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x8a3549fd22368f7a2c7e1c5ed8bbad46cc0e09f9fbfcea3ebc0a89d53c1ec001. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZLQR2133270.
      date published: 2026-07-05T19:27:56Z
    audio: Trương Đình Hoàng
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.024
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.811
      additional property: Energy
        type: PropertyValue
        value: 0.904
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0.056
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.057
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.946
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.577
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor