Proofs of Engagement

Every visit matters and AdPriva proves it.

Instead of cookies, pixels or fingerprinting, AdPriva issues cryptographic Proofs of Engagement for traffic events — page views, interactions and consent changes — so publishers can prove their traffic is real, human and consented.

This ensures:

  • Publishers can demonstrate verified, human traffic.
  • Buyers and auditors can independently re-check any verdict.
  • Users keep control: every proof is bounded by consent, never personal data.

Why Proofs Matter

  • No blind trust → Every tracked event is backed by a verifiable proof.
  • Fraud prevention → Bots and fake interactions cannot generate valid proofs.
  • Transparency → Proofs are verifiable in the AdPriva Explorer.
  • Privacy-first → Validated with consent and cryptography, never personal data.

Types of Proofs

AdPriva’s Proofs of Engagement extend the Three Proof Pillars; every proof is bounded by user consent and sealed in tamper-evident snapshots.

  1. ViewProof (Engagement Proof)
    • Verifies that a visit was genuine.
    • Checks → viewport visibility, dwell time, tab focus, behavioural signals, consent.
    • Output → cryptographic hash anchored in the Explorer.
  2. ClickProof (Engagement Proof)
    • Verifies that an interaction was human and unique.
    • Checks → device entropy, velocity patterns, behavioural signals, consent.
    • Output → signed proof preventing replay or bot activity.
  3. ConsentProof
    • Records a consent state or change as a signed event.
    • Output → tamper-evident proof tied to the visitor’s consent preference.

Proof Lifecycle

  1. Trigger → User visits or interacts.
  2. Validation → Conditions checked (consent, human signals, fraud detection).
  3. Proof Generation → Unique cryptographic proof created (HMAC-signed, with nonce + expiry).
  4. Anchoring → Proof batch-validated with ZKPs, logged in the AdPriva Explorer and anchored on-chain.

JSON Proof

{
  "proof_id": "PRF_12345",
  "type": "view",
  "status": "valid",
  "site_id": "SITE_2468",
  "user_ref": "pseudonymous_hash",
  "timestamp": "2026-03-04T12:34:56Z",
  "anchor_ref": "https://adpriva.com/explorer/PRF_12345"
}

Fraud Resistance

  • Replay prevention → Proofs contain nonces + expiry.
  • Uniqueness → One valid proof per event.
  • Tamper-evidence → Proofs sealed in daily snapshots.
  • AI anomaly detection → Identifies velocity spikes + abnormal patterns.
  • Zero-knowledge validation → Batch ZKP proofs ensure scale + privacy.

With Proofs of Engagement, AdPriva replaces the trust gap in digital traffic with cryptographic certainty, AI-powered fraud resistance and user-consented transparency.

← Previous Zero-Knowledge Proofs (ZKPs) Next → Consent & Privacy Model