I encountered the same thing. And no, the symbols in the game are not a password, but half of a link to a YouTube video. The password can be a picture on the official website (yes, when you try to copy the image of Helen Otis, his masked version appears there, and dashes at the bottom). I think this is the password for the archive, but I still haven't figured out how to solve it. Yes, I'm such stupid and weirdo ⊂((・▽・))⊃