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Certificate Verification

Verify a Certificate of Analysis

Enter the access code from your COA to confirm it is authentic and see the full test results.

CERTIFICATE VERIFICATION · QR-VERIFIED COAs

Enter Your Access CodeIt is printed below the QR code at the top of your COA

The code is printed in bold below the QR code in the header of your COA. It also appears in the footer, next to the signature block. Scanning the QR code with your phone brings you here with the code filled in.

Where to Find Your Access Code

HEADER (PRIMARY)

Top right of your COA, in bold directly below the QR code.

FOOTER (ALSO PRESENT)

Bottom of each page, labeled “Access Code:” next to the COA number.

Codes are 7 to 8 letters and numbers. Dashes and spaces are ignored.

LOTMARK LABSCertificate of Analysis
ACCESS CODE
COA No. ····Access Code: ACCESS CODE
Where the code appears on every Lotmark COA

How COA Verification Works

1

Find Your Code

Look below the QR code at the top of your COA, or next to the signature block in the footer.

2

Enter the Code

Type it in above, or scan the QR code with your phone camera to go straight to the record.

3

View Verified Results

See the results, sample details and laboratory signatory exactly as we released them.

Why verify

Tamper-Proof, Traceable Results

[Accreditation] Quality System

Every result is produced with validated methods under a documented quality system.

Locked After Release

Each COA links to a unique record. Results are not changed once released.

Unique to Each Sample

Every certificate is tied to one sample, with its own chain of custody.