Item description:

This is the first application that uses the IOSU kernel exploit. It shows your OTP region on the screen, which contains NAND keys, the ancast key, the common key and other keys. At the moment this has no benefit. It may be that you need several attempts to get success. If you get only zeros, just try again.

The keys should not be made accessible to anyone, since they are protected material of Nintendo and consolenspezifisch.