a keeper logbook

A sovereign single-file build: it runs from this one file, works offline, and sends nothing anywhere.

notes that stay

Everything typed here is saved on this machine, in this browser, and nowhere else.

the vault

One note, locked with AES-GCM on this machine. The password never leaves the field, is never stored, and there is no reset — that is the point.

the seal

Content addressing: the same words always make the same fingerprint, and one changed letter changes all of it. This is the whole trust story of a forged card.