About time we did this. We would ask each potential petitioner for the following:

 - First, a geotagged selfie in front of a major recognizable landmark
 - Obviously, a scanned passport and visa (where applicable)
 - Original of roof of residence
 - Legally certified birth certificate
 - Some bank statement for the last five years, or a photo with a pile of cash

Documents need to be sent on a floppy disk or zip drive to:

> Stack Exchange Inc.   
> {T,N}SA Compliance division   
> 42 Unicorn Drive   
> Republic of Texas

Alternatively, electronic versions can be hosted on publicly accessible torrent server and the link sent via post-it note to the address above.