Xinghe blockchain on April 20
Public chain, also known as "public chain", refers to the blockchain that anyone in the world can enter the system at any time to read data, send confirmatory transactions and compete for bookkeeping. The public chain is generally considered to be "completely decentralized", because no indivial or institution can control or tamper with the reading and writing of data in it. In terms of application, blockchain public chain mainly includes bitcoin, Ethereum, super ledger, most counterfeit currencies and smart contracts. The ancestor of blockchain public chain is bitcoin blockchain, which has the following characteristics:
1, open source code
upload the code to GitHub, and everyone can get complete blockchain data by downloading, Accept the test of the public
2, complete decentralization
anyone can become a node, each node is open, everyone can participate in the calculation of the blockchain, any node is not permanent, but phased, and any center is not mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain. Anyone can participate in the consensus process. The consensus process determines whether a block can be added to the blockchain and the exact current state. Everyone can get financial reward from it, which is proportional to their contribution to the consensus process. These public chains are generally considered to be "completely decentralized"
3. Developing decentralized applications
through this public chain, developers can easily develop centralized applications. Public chain can protect the rights and interests of users from the influence of program developers
In the past week, blockchain concept stocks have set off a wave of speculation in the A-share market. Indivial stocks have been trading continuously. Dozens of listed companies have issued announcements one after another. Some have clarified the relevant business, while others have "rubbed" the blockchain concept intentionally or unintentionally
In addition, dozens of companies, including Aikang technology, Donggang Co., Ltd., Shenzhou Taiyue, Hailian Jinhui, Bosi software, have also issued announcements. Wind statistics show that since the beginning of this year, the wind blockchain concept index has increased by more than 15.89%. In the overseas market, stocks involving the concept of blockchain soared overnight. On January 4, china.com.cn announced that it would carry out the application of blockchain technology. The stock surged 698% overnight. Taking 2018 as the interval, the cumulative rise of the stock has reached 340.37% in just nine trading daysit is learned that although the instry generally recognizes the potential of blockchain technology, many A-share listed companies are still at a relatively preliminary level. As for the market's speculation on the concept of blockchain, in the past week, the Shanghai Stock Exchange has successively sent inquiry letters to Shangying global and youjiu game, requiring them to disclose the research progress, commercial application scenarios and profit models of blockchain technology, and fully remind investors of the risks in combination with the current market-oriented and commercial maturity of blockchain technology
besides, blockchain is a very cutting-edge technology at present. China must pay attention to it, and the boss's instructions are timely and necessary.