what is digital currency backed by, snippets

[Review of A-shares on December 13th: There should be at least one shrinking K-line in the market next week before it can stop falling]

[Review of A-shares on December 13th: There should be at least one shrinking K-line in the market next week before it can stop falling][Review of A-shares on December 13th: There should be at least one shrinking K-line in the market next week before it can stop falling][Review of A-shares on December 13th: There should be at least one shrinking K-line in the market next week before it can stop falling]

[Review of A-shares on December 13th: There should be at least one shrinking K-line in the market next week before it can stop falling]