How it works

Send a PDF, LaTeX or Markdown file. During the beta we agree the price with you before the review runs.

Each claim is listed with what was tested and what the test showed; a claim that was not tested says so. An editor reads every report before you see it, and every decision carries the condition that would reverse it.

Upload the next draft and see what is fixed, still open or new. Publishing a result that anyone can check is planned for launch.

Nothing is reported as checked unless the check can be run again: the inputs, the code, the exact statement tested and the result, kept with the report and tied to the exact version of your manuscript by its hash.

• Frozen input. The manuscript is hashed before anything is read; the report refers to that version only.
• Located findings. Every finding points to the page, theorem, equation or line it is about.
• Reproducible checks. Each check records its inputs, precision, tolerance and software version.
• A record you can keep. Each round is logged with the hashes of what went in and what came out.

Scientific criticism of a manuscript. Not a journal decision, an endorsement or a guarantee of correctness. A claim that was not assessed is shown as not assessed, never as a pass or a fail.