<https://qoinbook.com/news/the-17-millionth-bitcoin-is-about-to-be-mined-what-it-means-and-why-it-matters/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://qoinbook.com/news/the-17-millionth-bitcoin-is-about-to-be-mined-what-it-means-and-why-it-matters/>