Bitcoin is just one type of cryptocurrency, a form of digital asset or money that can be exchanged in a similar way to normal currency. There’s no physical money attached to a cryptocurrency, so there are no coins or notes, only a digital record of the transaction. This digital record is often referred to as a blockchain.
A blockchain is a historical record of each transaction verified by each computer in the network. The verification is done after every transaction, for example when a cryptocurrency was sold and which account was credited. Each cryptocurrency has its own blockchain.





