Verifiably Human

Sign and manage Verifiably Human text from Chrome.

Verifiably Human lets you sign text with cryptographic proof of human authorship — directly from Chrome. Write or paste text in the side panel, and the extension captures keystroke-level cadence evidence while you type. When you sign, the text is stamped with a verification URL anyone can check. Features: - Side panel composer with real-time typing cadence capture - Tiered signing: Tier 1 (signed text) and Tier 2 (human typing evidence verified) - Draft auto-save with sync to your account - Import selected text from the active tab - Copy signed text with verification link to clipboard - Identity verification integration through the web app - Billing and plan management through the web dashboard The extension uses your existing Verifiably Human web account via Clerk session sync — sign in once on the web app and the extension picks up your session automatically. This extension records keystroke timing and text changes to generate human-authorship proof. Recording only activates when you click 'Track & sign' on a text field. Please only use Track & Sign on fields you are planning to sign.