I have no idea about how bitcoins work (I just found out about it today) , but I feel like its just like points for LoL or other various currencies you can buy at 7 11. You are allowed to buy a certain amount of points for dollars (10,000 points = $10 or w/e) and things are sold based on the concept that those points are worth actual dollars.
On a side note, I was thinking about checking the "deep web" out but after reading some of the stuff people found on other forums, Im a little hesitant. I dont really feel like seeing any sort of CP that I'll never forget...
Learning how to strangle someone silently seems pretty cool though.