I haven't read the article, but they should adapt it to Bitcoin. Showing where people are buying stuff, and what they are buying: de-anonymousing Bitcoin. Tax d

I haven't read the article, but they should adapt it to Bitcoin. Showing where people are buying stuff, and what they are buying: de-anonymousing Bitcoin. Tax departments would like it to see what's going on, and it could help legitimize Bitcoin. People can see what bitcoin shops are hot, and trust-worthy. It should run as a node, and merchants can register their address so it knows what to look for. I guess the issue is faked buyers, so you'd allow users to put a widget on their site that shows their bitcoin address as registered with the site for that url. Basically, a trust and identity system tied in with the block chain. Pretty straight forward and useful, then providing something like the Verisign logo for sellers. Big startup potential.