The Green Address Is a Multisig Wallet.

The idea for the original green address was, like you'd hold a, it would be a collaborative molti sig with green address. And so if you paid from there, a merchant could trust in a zero confirmation transaction de say, on green addresss reputation. But now it's called block stream green, which is great. Looks very pretty. They do support quite a few languages, if i remember right. Now they support also a. See, one thing that always drove me insane with that project was the fact that you had to use their non standard way of doing beco multi sig, or you couldn't use the wallet.