This document is a Consultation Paper issued jointly by the Bank of England and HM Treasury concerning the "digital pound." It seeks feedback on the policy and technical work undertaken so far to inform a future decision on whether or not to progress with building and launching a digital pound.

"Greenback" is a slang term for the emergency paper currency issued by the U.S. during the American Civil War in the mid-1860s. Its distinctive green ink recognised it. Initially, the notes were used to finance the Civil War and were backed by the government. However, they were not backed by gold or silver, which led to fluctuations in value and inflation.