Ledger

A physical or electronic log book containing a list of transactions and balances typically involving financial accounts. The Bitcoin blockchain is the first distributed, decentralized, public ledger.Bitcoin mining is the process of making computer hardware do mathematical, calculations for the Bitcoin network to confirm transactions and increase security. As a reward for their services, Bitcoin miners can collect transaction fees for the transactions they confirm, along with newly created bitcoins. Mining is a specialized and competitive market where the rewards are divided up according to how much calculation is done. Not all Bitcoin users do Bitcoin mining, and it is not an easy way to make money.