One code, one record
Every certificate is written once at publication and assigned a permanent ID. The QR code on the label encodes the verification URL for that ID and nothing else.
Certificate verification
Look up a certificate of analysis.
Enter the certificate ID printed on the report or the vial label, or scan its QR code. Results come straight from the laboratory database — not from the document in front of you.
Certificate IDs follow the format EPL-NNNNNNNNN and are printed on the report and the vial label.
Querying certificate database…
No certificate with that ID
Check the ID against the printed report. If the document you are holding shows an ID that does not resolve here, the document was not issued by this laboratory.
How verification works
Why the QR code matters more than the PDF
A PDF can be edited in ninety seconds. A database record cannot be edited from outside the laboratory.
Locked after publication
Published results are immutable. A correction is issued as a new certificate that references and supersedes the original, so the revision history stays visible.
Compare what you were sent
Check the batch number, test date, and purity value on the screen against the paper in your hand. Any mismatch means the paper is wrong.
For suppliers
Put verification on your product page
If you sell material we have tested, every certificate comes with a permanent link and a downloadable QR code sized for vial labels, cartons, and product listings. Customers scan it and land on the live record — no login, no PDF download, no version confusion.
Batch release clients can also publish certificates against their own SKUs, so a customer scanning a vial sees the certificate for that exact lot rather than a generic representative result.