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Liveness checks ensure a real person is present and not a static photo or video replay. High‑level flow:
  1. Initialize a liveness session (H5) when the user reaches your verification step.
  2. Redirect or embed the liveness experience in your app.
  3. After completion, query the liveness result.
  4. Combine the outcome with face comparison and document checks before final approval.
See API reference → KYC & Risk → Merchant Liveness (H5) for the initialization and query endpoints.