Plan 9 - Venti (Score 1)

This is a good idea, and it delights me to see someone implement it. It reminds me a lot of Venti, the Plan 9 Archival Storage System (http://plan9.bell-labs.com/sys/doc/venti.html). An interesting side-effect of this is that, given a large variety of files in the system, it becomes a distributed look-up table of hash values. Any cryptologists out there need something like that as a resource? :)