CBDC

A CBDC, or central bank digital currency, is a digital form of a country's official currency issued directly by its central bank. Unlike stablecoins, which are liabilities of private companies or protocols, a CBDC is a direct claim on the central bank itself — the same institution that stands behind physical cash.

The most prominent live example is China's digital yuan (e-CNY), which has been piloted at large scale for retail payments through banks and mobile apps. Many other jurisdictions have researched or piloted CBDCs; the European Central Bank has worked toward a digital euro, while the United States has been notably cautious, with strong political resistance to a retail digital dollar. Designs vary between retail CBDCs, usable by the general public, and wholesale CBDCs, restricted to settlement between financial institutions.

A common misconception is that CBDCs are cryptocurrencies; most designs use centralized, permissioned databases rather than public blockchains, and there is no mining, no fixed supply, and no permissionless access. The debates around CBDCs are mainly about policy: they could make payments cheaper and extend financial access, but they also raise privacy concerns, since a central authority could in principle observe or program how money is spent, and they could pull deposits away from commercial banks. For crypto users, CBDCs matter as competitors to stablecoins for digital payments — and as a contrast that highlights what decentralized systems do differently.