Which of the following will cause a Hub to record a new subscription and consider itself to be managing it:
1. A publisher pings a hub for a topic URL (even if not Subscribers are currently subscribed to that particular topic URL). The topic feed includes the particularly pinged hub as a valid hub. 2. A subscriber attempts to subscribe to a new feed and it is marked as a new subscription in the hub. I understand that the hub can be a distributer for arbitrary feeds, even if they don't list the hub as a distributor and it will poll the feeds and push to its subscribers. Where does the initial data come from? We are looking to expose a lot of data through a rest interface and updated through pubsubhubbub. Does the initial data population occur outside of the pubsubhubbub chain? How does that work with the initial step shown in the slideshow? When the subscriber first attempts to connect to the publisher they are "forwarded" to the hub. Does this mean redirected? If that is the case, does the first connection to the hub cause the hub to give the subscriber ALL of the content of that particular feed?
