Bitcoin ₿ is a decentralized digital currency that can be transferred on the peer-to-peer bitcoin network.
Bitcoin transactions are verified by network nodes through cryptography-->
recorded in a public distributed ledger called a blockchain.
The use of the currency began in 2009, when its implementation was released as open-source software.
The word bitcoin was defined in a white paper published on 31 October 2008.
It is a compound of the words bit and coin.
Nine countries have fully banned bitcoin use
A few governments have used bitcoin in some capacity.
Iran has used bitcoin to bypass sanctions.
The bitcoin blockchain is a public ledger that records bitcoin transactions.