Have a look at OnioNS (Onion Name System). It's a method for allowing users to claim unique names while limiting the effects of squatting, as it takes continuou

Have a look at OnioNS (Onion Name System). It's a method for allowing users to claim unique names while limiting the effects of squatting, as it takes continuous computational power to retain a name. This probably isn't going to help with your web app, but it's an interesting part of the theory to understand.