How verification works
Your proof, public.
Every CrbonFree gift card retires verified CO2e on an append-only public ledger. Each retirement produces its own certificate — below is what yours will look like.
Powered by Crbon Labs|Learn more about where we are making an impact.01
You buy
Pick a brand, pick an amount, pay with Stripe. The transaction creates a unique order on our ledger.
02
We retire
We retire the matching kg of CO2e against your order from a verified Alberta well-plugging batch. It can't be re-sold.
03
You get proof
A public certificate is minted with a cryptographic hash. Anyone with the link can verify it independently — no login.
Sample certificate · live preview
Open in new tab ↗This is an actual certificate from a real retirement on the public ledger, embedded live below. Every gift card you buy on CrbonFree generates one of these.