Type below. We read the rhythm of your typing, never your words. Seal it and you get one short code that proves a person typed this, live, not pasted and not generated. Anyone can check it, free, forever.
Write it here, by hand. Your words stay on your phone.
The rhythm is scored and sealed with a public clock nobody can predict. 50p a month, as many proofs as you like.
Put the code or badge under your post, essay, review or sign-off.
Your phone holds a private key that signs every proof, so only you can prove a proof is yours. Restore my key from a backup code