OpenID login workflow?

Question

When someone logs into a site using Open ID, what goes on behind the scene?

can someone explain to me the work flow/steps of what happens during a typical login from

Answer 1

I stumbled across this great OpenID introduction which is neither too high-level nor too low-level.

http://wiki.openid.net/w/page/12995171/Introduction

It's a bit verbose, and more or less written as prose, but it's a fun read and very informative about what happens behind the scenes.