Re: XT: It's On! First block was mined by an XT miner

It actually is , which is the hex number 0x20000007 decimal form. see https://github.com/bitcoin/bips/blob/master/bip-0101.mediawiki#Deployment for how the deployment plan is to work.

In fact, I've just found out about that myself, but thanks anyway.

So, Slush is the first.