<https://dautubitcoin.org/2021/03/nft-tro-thanh-xu-huong-chu-dao-voi-bia-phien-ban-gioi-han-cua-tap-chi-time/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://dautubitcoin.org/2021/03/nft-tro-thanh-xu-huong-chu-dao-voi-bia-phien-ban-gioi-han-cua-tap-chi-time/>