One way to describe a ledger is as a physical book or a digital computer file where financial transactions are noted down and documented, either as credits or debits. Ledgers typically also include the date of each financial transaction as well as the balance for each person or account that is a part of that specific collection of economic data. Physical ledgers are becoming less common, but digital ones are widely utilized in a variety of contexts globally. A company or business, for instance, might utilize a digital ledger to record all of its financial activities. Ledgers can be used to record sales, purchases, or just the simple transfer of money between staff members (or between various businesses). Blockchains, which function as immutable databases in digital contexts, can be seen as a well-known and extremely effective example of a digital ledger. Blockchains are frequently used to monitor all transactions between cryptocurrency users. The connected blocks create an extended chain of blocks, hence the name "blockchain." Blockchain technology is extremely safe and practical because it makes it nearly hard for transactions to be reversed once they have been added to blocks and blocks have been confirmed. Blockchains may be useful for other sorts of digital data tracking and recording in addition to cryptocurrency transactions. Blockchain is so more than just a digital ledger; it is a distributed ledger technology (DLT) that may be used in a variety of contexts, such as supply chain, charitable giving, and healthcare.