Ledger

A ledger in the context of blockchain is a digital record of all transactions that have occurred on a particular blockchain network. The blockchain ledger is distributed across all nodes in the network, meaning that each participant has a copy of the entire transaction history. This ledger is immutable, meaning that once data is recorded, it cannot be altered or deleted. There are two main types of ledgers in blockchain: public (which are accessible to anyone, like Bitcoin) and private (restricted to certain participants). Ledgers provide transparency, security, and decentralization, making them an essential component of blockchain technology.