what is digital currency backed by- Top Knowledge graph

[Afternoon comment on A-shares on December 12: The market index rose in the afternoon][Afternoon comment on A-shares on December 12: The market index rose in the afternoon][Afternoon comment on Ebo A shares on December 12: The market index rose in the afternoon]

[Afternoon comment on Ebo A shares on December 12: The market index rose in the afternoon][Afternoon comment on Ebo A shares on December 12: The market index rose in the afternoon]

[Afternoon comment on A-shares on December 12: The market index rose in the afternoon][Afternoon comment on A-shares on December 12: The market index rose in the afternoon][Afternoon comment on A-shares on December 12: The market index rose in the afternoon]