A distributed ledger system is a database that is spread across multiple locations or among several participants. Each participant has access to the same data and can see changes in real-time. This setup eliminates the need for a central authority, making operations more transparent and secure.In these systems, transactions are recorded in blocks, and each block is linked to the previous one, forming a chain. When a transaction occurs, it is verified by a consensus process within the network. Once confirmed, it becomes part of the permanent record.The key advantage of a distributed ledger is its resilience against tampering. Since the data is replicated across many nodes, altering a single copy is insufficient; an attacker would need to modify all copies simultaneously. This technology not only enhances security but also improves efficiency and trust among users by making information easily accessible and verifiable. Many cryptocurrencies utilize distributed ledger systems to provide a robust framework for secure and transparent transactions.