Verification certificates you can check
Each certificate includes a signed JSON envelope, the exact canonical payload, a detached signature, the public key and a verifier. A certificate states its limits beside its evidence.
The charter names what the signature covers, which internal rows it skips, and which older rows have no source.
Question-seal certificate
One reviewed question, with the recorded counts, the question hash, the grader hash, and the recorder run.
Open certificate and verification filesA certificate for your evidence. $249 once.
You get one signed HTML and JSON certificate from an agreed evidence scope, delivered within two business days. Cancel before generation begins.
Request the $249 verification certificateA signature proves the bytes and who signed them. The certificate states what that evidence can prove, and what it cannot.