Implementation of some sort of mini-referencing system

I think it would be rather cool and suited to tildes style of conversation to have some sort of referencing system built into markdown that is similar to Wikipedia's. Users can format a link so that it appears as a superscript number in the main bulk of the text and then also appears at the bottom of the post automatically after being posted in the classic number referencing style. It could look something like this, where the webpage title would be given as well next to the page and cutoff after a certain amount of characters (please excuse my terrible paint skills). This is clearly not a necessity as we could still just use standard square and normal brackets to insert links, but I think it would be rather nifty to have a built in system that automatically creates a mini list of references, especially if the user writes a rather long, well thought out argument that might require more than a few citations.