Scan a holo and Foilproof reads its foil like a fingerprint — then checks it against the grading image on file and flags crack-and-swaps, regrades, and clones the eye can't catch.
A real slab with a swapped card looks perfect. A card that failed at one grader and got recased for a higher one looks perfect. Foilproof reads the holo as a fingerprint and catches both.
The holo doesn't match the grading image on file for that cert — the card in the case isn't the one that was graded.
The same physical card surfaces under earlier certs at a lower grade. The climb across resubmissions is the tell.
The same foil fingerprint scanned in five cities at once can't be one card — its pattern has been copied onto others.
Point your camera at the holo. Foilproof detects whether it's slabbed, reads the foil into a fingerprint, and runs every check at once.
The foil's response to light becomes a unique fingerprint. Works on graded slabs and raw cards alike.
Compared to the grading image on file and to every prior sighting of that exact card across the network.
Clean, or flagged — with the history behind it. A signal for your due diligence, never a claim of certainty.
Each card gets a permanent holo fingerprint. As vendors and collectors scan, Foilproof builds an identity record that follows a card across slabs, graders, and crack-outs.
That cross-vendor history is what catches the fraud no single grader can see — and it grows with every scan.
We're building the verification layer for trading cards. Join the waitlist to get early access and help shape it — vendors especially, we want to hear from you.