1 The word 'bitcoin' was defined in a white paper published on October 31, 2008. The currency began use in 2009, when its implementation was released as open-source software. The cryptocurrency was invented in 2008 by an unknown entity under the name Satoshi Nakamoto. Bitcoin transactions are verified by network nodes through cryptography and recorded in a public distributed ledger called a blockchain. Without proper rendering support, you may see question marks, boxes, or other symbols.īitcoin ( abbreviation: BTC or XBT sign: ₿) is a decentralized digital currency.
This article contains special characters. Initially ₿50 per block, halved every 210,000 blocks