[pytyper2]

Can I enter your factory and inspect the dies as they come off the line before they are sealed? If yes, then you could indeed verify the silicon is as designed. Probably just as you could take a chip that does not work and diagnose the problem, this functionality would seem to be necessary to successfully build a chip/chip factory in the first place. How would you troubleshoot the manufacturing process if you couldn't audit the product for quality/accuracy?

[peter_d_sherman]

Completely random inspections of product in any stage of the manufacturing process by third parties is a good idea.

I don't know the practical reality of any company permitting that, but it's a good idea. Some future chip manufacturing group will hopefully do that.

Audits of any form at any time by any party should be permitted, rather than denied.