Could you please clarify which specific banks are currently offering or piloting Central Bank Digital Currencies (CBDCs)? It's a relatively new and evolving area, so the landscape may vary depending on the country and the stage of development. Some central banks, such as the People's Bank of China, are actively working on their own CBDC projects, but it's not immediately clear which commercial banks would be involved in their distribution or usage. Additionally, other countries like Sweden and the Bahamas have also made progress in developing their own CBDCs, so the answer may vary depending on the jurisdiction. Could you provide more context or specify a particular country or region you're interested in?