A central ledger is a type of ledger that is maintained by a central authority or organization. It is used to record and track transactions, assets, and other data. Unlike a distributed ledger, which is maintained by a network of computers, a central ledger is maintained by a single entity. This entity is responsible for verifying and validating transactions, ensuring the accuracy and security of the ledger. Central ledgers are often used in traditional financial systems, such as banks and other financial institutions.