Save the database on the torrent worldwide network, it allows for: easy worldwide publishing, access, distribution, immorability (no loss possible 4 eternity, even safe 4 evil politicians' needs), ..?, Third Millenium Proof. This duo: git-torrent is hitting the streets soon. It is safe, even where/when internet is forbidden by law.
Don't torrents have to match checksums in the .torrent file for each chunk? Every time you changed your data, you'd have to publish a new torrent, and all the clients would have to download the new .torrent file.
IIRC it doesn't actually use BitTorrent, it's just inspired by it. The Git and BitTorrent models are related enough that an intelligent synthesis could work nicely.