[jlokier]

There's a way to verify it statistically but it will be very expensive. Perhaps the verification can be automated down to commodity price if it is done often.

Get your batch of 1000+ devices. Uncap, repeatedly etch and scan a random subset to check the circuit is what you expected. Make sure it's you that chooses the subset.

ps. I would love to implement this if someone thinks it's a serious proposition!