Distributed ledger are ledgers in which data is stored across a network of decentralized nodes. A distributed ledger does not have its own currency and may be permissioned and private.

A distributed ledger is a decentralised digital record system that stores transaction data across a network of computers rather than in a single central location. Every participant in the network maintains a copy of the ledger, allowing information to be synchronised and updated collectively. Before new records are added, network participants typically validate the transactions through an agreed-upon consensus mechanism.

The decentralised nature of distributed ledgers enhances reliability and reduces dependence on a central authority. Because multiple copies of the ledger exist, unauthorised changes are difficult to make without being noticed by other participants. This structure also improves resilience against system failures and cyberattacks.

While blockchain is the most recognised example of distributed ledger technology, other designs do not rely on blocks. Distributed ledgers have applications in sectors such as banking, logistics, insurance, and healthcare. Their ability to provide secure, transparent, and efficient data management makes them an important technological innovation.