Stolen from Apple (2004)
This reminds me of how the Game Boy displayed the Nintendo logo on boot up: The logo is a bitmap in the cartridge, the Game Boy displays it and only continues if the checksum matches the Nintendo logo. The point of this is that trademark should prevent the use of the Nintendo logo bitmap in unlicensed games, basically doing DRM through trademark. (It didn't really work, since companies would design their own logos such that they had the same checksum as the Nintendo logo)