Got a report number? See if it's real.

Paste a Janoshik test number or report ID. We check it against our archive of 121,854 published COA report entries and tell you whether it is on file. Pro unlocks the measured result and source evidence.

Janoshik test number (the digits in a verify.janoshik.com link) or report ID. This lookup does not search batch codes; to look up the batch on your vial, use Find Your Batch.

What is this?

Vendors and group buys hand out Certificate-of-Analysis report numbers as proof of purity. This tool checks that number against the lab reports we've archived so you can confirm what it actually tested at — before you trust it.

Where's my number?

On a Janoshik certificate it's the test ID — the same digits that appear at the start of a verify.janoshik.com/tests/<number> link. Paste just the digits.