<https://secure.gravatar.com/avatar/7717cca67351d1b8942160e82bf9c0ed?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://bitcoinnews.com/learn/lightsats-1-bitcoin-lightning-tournament/>