The "Verified by Prova" badge

One line of HTML. Visitors see a live-updating trust badge that links to the formal certificate behind any AI-generated output on your site.

Copy-paste

<script src="https://prova.cobound.dev/badge.js"
        data-cert="PRV-2026-A3F2"
        data-variant="light"></script>

Replace PRV-2026-A3F2 with the certificate ID returned by /verify.

Variants

Set data-variant to light (default), dark, or inline. The badge reads the certificate verdict and colors itself accordingly — green for valid reasoning, red for invalid.

Live preview

light

dark

inline

This paragraph was produced by an AI assistant and the conclusion is auditable.

What the badge does

Fetches certificate verdict from /api/badge/<cert-id> (cached 1 hour at the edge)
Links the visitor to the full, human-readable certificate on prova.cobound.dev
Zero dependencies, <3KB, no iframes, no tracking

Why embed it?

AI-generated content is becoming the default. The badge is the SSL padlock for AI reasoning — it tells visitors that whatever appears above it has been formally verified, and gives them a one-click path to audit the proof.