On November 1, 2008, a person named Satoshi Nakamoto published the Bitcoin white paper "Bitcoin: A Peer-to-Peer Electronic Cash System" on the P2P foundation website, stating his new ideas for electronic currency. Imagine that Bitcoin was born. Bitcoin is an encrypted currency built on the underlying technology of the blockchain, and the blockchain is essentially a decentralized database, which is a series of data blocks associated with each other using cryptographic methods. Each data block Contains a batch of bitcoin network transaction information, used to verify the validity of its information and generate the next block.

So, to put it simply, Bitcoin is a cryptocurrency that has no centralized issuer, but is generated by the calculation of network nodes. Anyone can participate in the manufacture of Bitcoin, and it can be circulated all over the world, and it can be accepted on any platform. Buy and sell on computers connected to the Internet. Bitcoin is generated through a large number of calculations based on a specific algorithm, uses a distributed database composed of many nodes in the entire P2P network to confirm and record all transaction behaviors, and uses cryptography to ensure the security of all aspects of currency circulation.

Bitcoin is a type of cryptocurrency, and it can be said to be the earliest and most mainstream cryptocurrency. As a cryptocurrency, Bitcoin has its own value and it fluctuates up and down. The peak price of Bitcoin appeared on December 17, 2017, which was close to 20,000 US dollars per coin. Later, the price plummeted and fell back to more than 3,000 US dollars. At present (December 15, 2019), it is about 7,100 US dollars.