(In english：Bitcoin abbreviation：BTC)
BitCoin (BitCoin) concept was originally proposed by Zhongcong in 2009, according to the idea of the open source of open source software and the construction of its P2P network. Bitcoin is a digital currency in the form of P2P. Point-to-point transmission means a decentralized payment system.
Unlike most currencies, Bitcoin does not rely on a specific currency institution, which is generated by a large number of calculations based on a particular algorithm. The bit currency economy uses a distributed database of many nodes in the entire P2P network to confirm and record all transactions, And the use of cryptographic design to ensure that all aspects of currency circulation security. P2P de-centricity and the algorithm itself can ensure that the currency can not be manipulated by a large number of manufacturing bits. A cryptographic-based design allows a bit currency to be transferred or paid only by the real owner. This also ensures that the monetary ownership and circulation of the anonymity of the transaction. Bitcoin is the biggest difference from other virtual currencies, and its total number is very limited and has a strong scarcity. The monetary system has had no more than 10.5 million in four years, and the total number will be permanently limited to 21 million.
Bitcoin can be used to cash, can be converted into the currency of most countries. Users can use some coins to buy some virtual items, such as online games among the clothes, hats, equipment, etc., as long as someone accepts, you can also use the real currency to buy real life items.