Prove human authorship in regulated industries

ByHand provides technical evidence that content was composed by a person: keystroke behavior, revision patterns, composition rhythms. Built for EU Article 50 compliance. Proof that holds up.

What ByHand measures

Typing rhythm

How a writer builds sentences: in bursts, in pauses, in fragments.

Editing behavior

Where you delete, where you insert, where you rewrite.

Keystroke dynamics

The micro-timing between every key you press. Consistent enough to identify, impossible to fake.

Privacy by design

ByHand follows how you write, not what you write.

Everything is processed and stored locally.

Nothing leaves your environment.

Limitations