Thế Khoa
type: MusicGroup
genre: v-pop
popularity: 2
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07ef747a97bb47a79806f5705ec664d49c792ab3d69e82d0ba75f575e86bf8d3
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/691586e1-9d39-4e6c-ba27-877164868d76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/691586e1-9d39-4e6c-ba27-877164868d76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/691586e1-9d39-4e6c-ba27-877164868d76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07ef747a97bb47a79806f5705ec664d49c792ab3d69e82d0ba75f575e86bf8d3","name":"Thế Khoa","registered_at":"2026-06-17T02:15:51Z","symbol":"NIM1249471","token_address":"0x40fe6dcefab8978c4a7a1d4ac5f1dc9f6bbd2041","type":"artist","uuid":"691586e1-9d39-4e6c-ba27-877164868d76"}
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 0x07ef747a97bb47a79806f5705ec664d49c792ab3d69e82d0ba75f575e86bf8d3. 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/691586e1-9d39-4e6c-ba27-877164868d76.json and https://artists.proofprofile.net/proofs/artist/691586e1-9d39-4e6c-ba27-877164868d76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x07ef747a97bb47a79806f5705ec664d49c792ab3d69e82d0ba75f575e86bf8d3","name":"Thế Khoa","registered_at":"2026-06-17T02:15:51Z","symbol":"NIM1249471","token_address":"0x40fe6dcefab8978c4a7a1d4ac5f1dc9f6bbd2041","type":"artist","uuid":"691586e1-9d39-4e6c-ba27-877164868d76"}
album: Tình đơn phương 3 (Live at OpenShare)
  type: MusicAlbum
  date published: 2021-07-04
  track: Tình đơn phương 3 - Live at OpenShare
    type: MusicRecording
    duration: PT4M44S
    duration ms: 284784
    explicit: false
    by artist: Thế Khoa
    in album: Tình đơn phương 3 (Live at OpenShare)
      type: MusicAlbum
      date published: 2021-07-04
    genre: v-pop
    isrc code: QZK6P2144703
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:05:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x841ae0946c5cb51cc17bbb3fdac53624311165a91c34b770cfa86f67de94f058
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2144703
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x841ae0946c5cb51cc17bbb3fdac53624311165a91c34b770cfa86f67de94f058. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6P2144703.
      date published: 2026-07-05T10:01:46Z
    audio: Tình đơn phương 3 - Live at OpenShare
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.921
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.48
      additional property: Energy
        type: PropertyValue
        value: 0.469
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.835
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.344
      additional property: Liveness
        type: PropertyValue
        value: 0.213
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.182
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.292
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Chỉ Cần Em Hạnh Phúc
  type: MusicAlbum
  date published: 2024-03-14
album: Khi Người Mình Yêu Khóc
  type: MusicAlbum
  date published: 2024-03-14
album: Yêu Như Ngày Yêu Cuối
  type: MusicAlbum
  date published: 2024-03-14