Will a QR code on a challenge coin actually scan?

Yes, provided the design gives the code room to work. Three things decide it: the code needs to occupy a real share of the coin face rather than tuck into a corner, it needs contrast against whatever sits behind it, and it needs a clear margin — the “quiet zone” — with no lettering or border crowding its edges.

Keeping the encoded link short helps most of all, because a shorter URL means fewer, larger squares. A long link packs the same area with finer detail than a struck coin can hold. Scan the code in your digital proof with your own phone before you approve it — if it reads on screen, it will read on the coin.

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