A balance whose needle reads level while its beam is tilted
Our mark is a balance whose needle points to level, even though the beam has tipped.

Examen Silentii

Journal of Software and Data Verification

Most bugs give themselves away with a crash, an error or a warning. The ones that we focus on do not. The program runs, the numbers look reasonable, and they're wrong.

What the journal publishes

ExSil publishes independent examinations of scientific software and public research data: reports that test whether a widely used or consequential tool or dataset produces correct results, whether it signals when it does not, and how its maintainers responded when the issue was raised with them, or that they did not.

Articles must include a reproducible test, directly relevant to the claim being made, against a reference that is independent of what is tested.

The journal does not publish software announcements, novel methods without an independent examination, or reviews and opinion pieces that do not include a test.

Why it exists

Almost every scientific result now passes through software or a shared dataset somewhere along the way, and most of that software is only ever checked by the people who wrote it. When something does go quietly wrong, the evidence usually ends up in an issue tracker or someone’s notes, where it’s hard to find and impossible to cite. ExSil gives that evidence a permanent, peer-reviewed home, and gives the people who maintain the software a chance to answer in the same place.

How it works

We're not taking submissions yet. The editorial board comes first. If you'd like to review, edit or send us something once we open, the Editors page explains how to get in touch.