How It Works for Manufacturers
Your lab anchors the COA
The issuing laboratory uploads the Certificate of Analysis to the Compound Ledger registry. A CL number and QR code are issued.
Print the CL number on the label
Include the CL number and QR code on product labels, batch documentation, and shipment manifests.
Buyers scan or type to verify
Any buyer, distributor, customs officer, or consumer searches compoundledger.org and retrieves the original COA. No login required.
Record is permanent
The blockchain anchor is immutable. The record cannot be altered or removed providing verifiable proof for the lifetime of the batch.
What Buyers Receive
On the Label
CL Number & QR Code
A scannable QR code linking directly to the public COA record. Printed alongside the Lot number and CAS number.
On the Record Page
Original COA Document
The exact document submitted by the issuing lab viewable and downloadable by anyone. Blockchain hash confirms document integrity.
For Compliance
Immutable Audit Trail
Timestamp, blockchain hash, lab accreditation number, and CAS number everything needed for regulatory and customs documentation.
Get Started
Register Your Supply Chain
Work with your contracted laboratory to register COAs before shipment. First-time users can download the free COA template to ensure your lab produces a registry-compatible document.
