<https://derivadao.jptacek.eu/whats-the-difference-between-ddx-core-and-ethereum-going-down#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://derivadao.jptacek.eu/whats-the-difference-between-ddx-core-and-ethereum-going-down>