"In October 2020, the Bahamas released a new kind of digital currency: “sand dollars.” These digital tokens are issued by the country’s central bank and are legal tender, with the same legal status as their old-fashioned money — paper notes and coins. The sand dollar is cash; it just doesn’t have a physical form. Residents of the Bahamas can now download an e-wallet onto their phones, load it with sand dollars, and spend away with a simple tap."
Source: https://knowablemagazine.org/article/technology/2022/next-evolution-digital-money-happening-now