This is brilliant.
Thanks!
Speaking of which, the fact that it's a third party service seems like one of the only downsides. If the site became popular and was compromised it could have far reaching and costly repercussions. Actually I think that the best place for this is in the client itself. This could change when not everybody has easy access to the full blockchain. Online wallets should implement their own versions (or perhaps you'd package it up as a library?). This is all further down the road of course.
Our site makes it easy, and it's the only one right now, but our site is not required. The rule we follow is simple and the only database you need is the block chain. It could be bad if we were compromised and people didn't realize and were tricked into sending incorrectly, but when discovered people can switch to a copycat, I hope there will be many using the exact same rule to avoid confusion.
How about a page that takes a list of addresses and outputs their firstbits ordered by size? This will become more useful as more addresses come into existence and you want to find your address with the most memorable firstbits. Only downside I can see it the resource hit to your server.
This is a good idea. We're not going to do it yet though, working on other things and like you say, resource considerations. If anyone wants to put it together themselves they can use our api to test and then maybe we can help make sure you get the exact same rule implemented easily.
How about a warning if the first entry of an address was in the latest X blocks? That's the only time I can see where it might be possible for a firstbits address to change. I can't see how it would be a worthwhile attack and it's highly unlikely to happen by accident so I'm probably being unnecessarily tedious, but waiting a few blocks does seem like the current bitcoin accepted model.
I'm thinking on this. Will probably go with a warning that there has recently been a split. The simple fact that your address is recent shouldn't cause alarm and so the warning will be ignored.
Again, this is a great idea and the I like the simplicity of the site.
Yep, not going to clutter it up. Feel free to test out our firstbits.