Live demo, no install
See the chamber block a send. Right here, in your browser.
Below is a synthetic confidentiality matrix for a fictional family office: three advisors, three walls. Type a draft, or click an example, and watch the deterministic check cross person against subject and stop the forbidden pair. Nothing you type leaves this tab.
The real product runs entirely on your own machine, against your own matrix, with your own people and subjects. This page is a faithful, simplified simulation of the same rule so you can feel the mechanism before downloading anything.
The synthetic matrix
Three walls, declared in advance.
HARD, blocks
Advisor A handles only the succession
Abel Martins (Dr. Abel) must not learn about the company sale. A draft naming him next to
sale language is denied.
HARD, blocks
Bank B is blind to sale and succession
Bianca Duarte, renegotiating the debt, must not learn about the company sale or the
succession.
SOFT, warns
Consultant C gets a warning on wealth
Caio Nunes may receive family-wealth material, but every such send is flagged for a human
look before it goes.
Try it
Type a draft. The chamber answers.
$ signato check "your draft..."
The verdict appears here. Click an example above to start.
What this page is, and is not
- It is the same rule. Person matched on word boundary, subject matched on declared keywords, both case-insensitive, crossed in the same event: hard wall denies, soft wall warns. That is the product's core verdict logic, reproduced in this page's JavaScript.
- It is simplified. The real engine also folds accents and Unicode confusables (a Cyrillic а does not sneak past it), resists separator evasion (“A-b-e-l”, zero-width characters, glued words), keeps an append-only audit trail, supports audited wall-crossing exceptions, an egress layer, test scenarios, and attestation. None of that runs here.
- Nothing you type is sent anywhere. The check runs in your browser tab; every asset on this page, fonts included, is served from this same site, with no third-party request at all. Open your browser's network inspector and try it: type, check, watch nothing leave.
No card for the local trial. Your matrix, your machine, nothing uploaded, ever.