(abbreviation: BTC; sign: ₿) is a decentralized digital currency that can be transferred on the peer-to-peer bitcoin network.
transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain.
The cryptocurrency was invented in 2008 by an unknown person or group of people using the name Satoshi Nakamoto.
The currency began use in 2009, when its implementation was released as open-source software.: ch.
1 The word bitcoin was defined in a white paper published on 31 October 2008.
It is a compound of the words bit and coin.The legality of bitcoin varies by region.
Nine countries have fully banned bitcoin use, while a further fifteen have implicitly banned it.
A few governments have used bitcoin in some capacity.
El Salvador has adopted
as legal tender, although use by merchants remains low.
Ukraine has accepted cryptocurrency donations to fund the resistance to the 2022 Russian invasion. [+]