As I said, it's a minor problem, but it's one with an easy fix: just standardise the card codes
It keeps focus on the sealed product
It's usually an assortment of pins and the like, but there's something coming up that has people scratching their heads: a crystal counter d10 spindown, according to the WPN pre-release guide
On the other hand, remember that although tokens are permanents, tokens are not cards (even if you may be using a WotC official token that you found inside a Play Booster)
This difference, in combination with JP prints other variations, make it appear differently under intense light and thus make the test ineffective for authentication
This can help you stop attackers or build defenses with deathtouch tokens