It probably worked more like a P2P network, they didn't have to find that particular wiki just any one of them with linking in-between, over multiple days with a search engine even. Only OAI could answer for sure but of course there is no transparency so we will never know.

This just feels like the first clumsy attempts at persistence across sessions, these models will probably evolve way past the point of us ever even noticing its happening at all. When they start doing long term planning across sessions, that's when it's gonna get real dicy for us.