Validate the integrity of any text payload and generate a Zero-Knowledge Proof (ZKP) attesting to it — without ever exposing the underlying data. You get back a verification ID and a shareable proof URL anyone can use to confirm authenticity.

  • Enterprise-grade zero-knowledge proofs — prove a value without revealing it
  • Returns a permanent proof ID and a public verification URL
  • Ideal for attesting documents, credentials, or sensitive fields in agent workflows

Returns

proof_idstringZKP Verification ID
proof_urlstringZKP Verification URL

Call it directly

curl -i -X POST "https://centry.cybercentry.co.uk/api/services/private_data_verification" \
  -H "Content-Type: application/json" \
  -d '{"cpdv_data":"order #4471 — total $129.00, paid 2026-05-24"}'

POST JSON (canonical) · GET query params also works · unpaid requests return 402 · see the payment flow.