Experts will take you to understand what the "Net Red" blockchain can bring to us.

Sun Yi is a researcher, director of the Institute of Computing Technology of the Chinese Academy of Sciences, and a leader of the blockchain direction. He is an honorary researcher at the Australian National Information and Communication Center and a senior visiting scholar at Carnegie Mellon University. In recent years, research work has been carried out around blockchain and Internet service optimization technologies. The results have been widely used in well-known domestic Internet platforms, with more than 300 million installed users. Into the Academy of Youth Innovation Promotion Association, and the first batch of selected science and technology outstanding young scientists plan.

The blockchain has become a hot word for this year. Although everyone is curious about the concept of blockchain, most people don't know much about it. Yesterday, at the fourth phase of the 2018 Spring City Cadre University Hall organized by the Organization Department of the Municipal Party Committee, Professor Sun Yi unveiled the blockchain “the mystery” for the Quancheng cadres. What is the blockchain?

Sun Yi said that the blockchain is an innovative distributed transaction verification and data sharing technology, also known as distributed shared ledger. Its core value lies in the realization of multi-center trust at the technical level by constructing a P2P self-organizing network, a time-ordered and non-tamperable cryptographic shared ledger, and a distributed consensus mechanism. "The bigger the world, the harder it is to reach trust, and in layman's terms, the blockchain can solve the problem of network trust." And on its principle, Sun Yi uses a story to illustrate:

One day, a girl asked his boyfriend to confess to her, and invited all the students to help her witness. Everyone "collects" together to help the girl remember this commitment. Here, a classmate is equivalent to a block. Every student in the school gets a message that cannot be tampered with, and these scattered blocks are combined to form a blockchain. "There are so many people who help her remember that it is impossible for boys to think about it."

Sun Yi believes that "the Chinese have accepted the concept of brothers and sisters from a young age, and the development of the blockchain has a unique cultural advantage." Of course, the significance and complexity of the blockchain is much larger than the above example.

Sun Yi introduced that the concept of blockchain can be traced back to 2008. The mysterious person named “Zhongben Cong” published a paper “Bitcoin: A Peer-to-Peer E-Cash System” in the forum, which was first proposed. The concept of blockchain. On January 3, 2009, the first block of the blockchain was born. This block is called the “initial block”. Almost with the birth of blockchain technology, Bitcoin became the first thing to play its role. In the following years, Bitcoin has gradually become popular around the world. In 2017, its crazy market has made blockchain technology known. From the domestic point of view, at the end of 2016, the State Council will include the blockchain in the “13th Five-Year Plan” national informationization plan. At the same time, Guiyang, Hangzhou, Qingdao, Chongqing, Xiong'an and other places have also introduced relevant policies, and actively promote cooperation between governments, enterprises, universities and industry organizations. In the past two years, the number of blockchain enterprises in China has shown a spurt of growth.

Sun Yi said frankly that although the blockchain is currently hot, it should be soberly realized that the blockchain is not omnipotent. This technology application scenario must meet the three conditions of multi-participation, lack of unified trust subject, existence value circulation or trust transfer. At present, the supply chain financial loans, clearing, settlement, global exchange, and small-scale digital asset issuance in the financial system can use blockchain technology well to improve operational efficiency. In addition, the blockchain has application possibilities in areas such as copyright protection, medical information sharing, Internet of Things, human resources, and government management.

How to embrace the opportunity of the blockchain? In this regard, Sun Yi believes that the blockchain is neither mysterious nor mysterious. It is still in the primary development stage, and the important underlying technology has not completely broken through, and there are still many limitations. "At the current stage, what we have to do is to embrace this promising technology. Only by respecting the laws of growth and doing the basic research step by step can we gradually mature." Sun Yi said.