Being accused of using AI — by an editor, a professor, or an algorithm — is a real risk now. A few different kinds of tools have shown up to answer it, and they work in different ways.
AI detectors (GPTZero and similar)
Screens a finished piece of text and returns a probability score that it was AI-written. Useful for a reader triaging submissions, but it can only ever guess — and guesses can be wrong, in both directions.
How Proofwriter compares →Keystroke-replay tools (Just Human and similar)
Records your typing in a plain textarea and lets you share a replay as evidence. Low friction, no account needed — but you’re writing in a bare textarea, not a real editor.
How Proofwriter compares →Badge/proof platforms (Humanums and similar)
Collects proof while you write and issues a badge backed by a self-signed hash. Often paired with a fuller go-to-market — pricing, logos, cited research.
How Proofwriter compares →Process-capture editors (TypedTrust and similar)
Aims at the same problem with a certificate-and-capture editor, currently in a waitlist stage. Worth watching, but there is no live product to try yet.
How Proofwriter compares →Proofwriter
A distraction-free writing editor that records your process as you draft — checkpoints, revisions, timing — then anchors the finished piece to the Bitcoin blockchain. You get a shareable Proof page instead of a score or a badge.
See how it works →Your first three Proofs are free.
Start writing free