Bitcoin

"Bitcoin (BTC) is a decentralized digital currency, without a central bank or single administrator, that can be sent from user to user on the peer-to-peer bitcoin network without the need for intermediaries. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. Bitcoin 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. Bitcoin transactions are more secure than traditional financial transactions because they do not rely on trust in a particular business or individual. They are irreversible, do not require personal information, and can be sent globally, which makes them immune to governmental control and interference."