<http://schema.org/description>
"You may have heard that the virtual currency bitcoin is &amp;quot;mined&amp;quot; by computers. But how exactly does that work? Jon Steinberg explains, and shows how easy it is to do."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2014/01/06/how-to-mine-bitcoins-buzzfeed-coo-cryptocurrency/20801728/?gen=1>