<https://secure.gravatar.com/avatar/67dcf229f5201700b286ee875e4079e3?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://bitcoinnews.com/adoption/hal-finney-satoshi-jameson-lopp/>