Trust standard
Answers should survive being checked.
Every published solution carries a verification state and a review record. “Looks plausible” is not a status.
Mathematical verification
We differentiate proposed antiderivatives, substitute solutions into original equations, check domains and assumptions, and compare independent methods where useful.
Editorial review
A reviewer checks the problem statement, notation, reasoning, final form, limitations, and whether the page genuinely adds educational value.
Visible status
Published pages identify their review date and verification state. Corrections remain part of the record rather than disappearing quietly.