{"footnote":"  \u003Cp class=\u0022leftranged halfline\u0022\u003E    Nathaniel Popper tells the story in his history of bitcoin, \u003Cem class=\u0022emphasisClass\u0022\u003EDigital Gold\u003C\/em\u003E (2016).  \u003C\/p\u003E\n","audio":[],"video":[]}