https://github.com/ConceptPending/proveitThis is a simple implementation of gmaxwell's idea regarding sites proving they have the required funds, posted here:
https://iwilcox.me.uk/v/nofracThe bitcoind tie-in will be coming tomorrow.
This is the account side of the project, and is pretty much ready to plug-n-play right now as far as I can tell.
I'm happy to receive any help, and I'll be adding the bitcoind, balance signing part of the equation, plus better documentation, tomorrow.
Cheers,
Nick