Investors actually mined 81 million HempCoin securities through late 2017 and bought and sold the security on two cryptocurrency exchanges.
source https://www.google.com/url?rct=j&sa=t&url=https://www.thinkadvisor.com/2018/09/11/finra-issues-its-first-cryptocurrency-disciplinary/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNF1VQqg8637PRa83_pG_jK_oMa5zQ
