The process of verifying transactions on a blockchain network and permanently appending them to the ledger via mining nodes.
Mining is the fundamental process of validating transactions carried out on a blockchain network, and recording these transactions on virtual blocks (that is, the pages of the distributed ledgers). The process is likely the most essential in blockchain applications since transactions on networks are not recorded any other way. Ultimately, the goal of mining is to ensure that a network is safe from invalid and phony transactions, thereby checking and double-checking the broadcast from nodes about said transactions.
Mining is not an overly complicated process, although it takes time. However, miners get rewards for their work. As a result, mining may be categorized as a profitable activity in crypto.