<https://www.tomshw.it/hardware/proof-of-stake-mining-di-criptovalute-a-basso-costo/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.tomshw.it/hardware/proof-of-stake-mining-di-criptovalute-a-basso-costo/>