Detection tools score traffic and guess whether it was a bot — and independent audits show sophisticated fraud slips past. 5arz does the opposite: affirmative, signed proof a real, attentive human was present, verifiable by anyone.
Scores impressions for invalid traffic and estimates bot likelihood. Useful screening — but it's a guess that grades itself, and audits catch sophisticated bots getting through.
Issues a signed credential per impression or action that a real, attentive human was present — checkable downstream by anyone, no trust required.
A detection score lives in a dashboard. A 5arz credential travels with the impression and verifies anywhere — the buyer can check it themselves.
| Capability | Ad-verification / detection | 5arz |
|---|---|---|
| Method | Probabilistic scoring / filtering | Affirmative cryptographic proof |
| Output | A risk score / rate | A signed, portable credential |
| Anyone can verify downstream | No — trust the vendor's number | Yes — public JWKS |
| Proves a human was present | Estimates it | Proves & signs it |
| Distinguishes undeclared AI agents | Emerging | Affirmative human credential by design |
| Portable to a buyer / ledger | Vendor dashboard | Yes — travels with the impression |
You need broad screening to filter obviously invalid traffic across a large buy.
You need affirmative, signed proof a human was present — for premium inventory, verified-human guarantees, or agentic commerce.
Screen with detection, then stand behind the traffic that matters with a 5arz credential the buyer can verify.
It's the affirmative-proof layer alongside detection. Detection screens; 5arz signs proof a real human was present that anyone can verify.
Yes — many buyers screen with detection and add 5arz credentials on the inventory they want to guarantee.
It's an ES256 JWT checked against the public JWKS with any JWT library — no 5arz SDK required. Try the free verifier.
Comparison of approaches (affirmative proof vs. probabilistic detection) based on publicly available information as of June 2026; vendor capabilities differ and change, so verify current details with each provider. "Integral Ad Science"/"IAS", "DoubleVerify", and "HUMAN" are trademarks of their respective owners. 5arz is independent and is not affiliated with, sponsored by, or endorsed by any of them. This page is informational and not legal advice.