Li Shixiang, China e-commerce blockchain Management Center

1. At present, there are three application deployment types of blockchain: public chain, private chain and alliance chain. What's the difference between them? What are the typical applications<

public chain: open to all, anyone can participate

private chain: open to indivial indivials or entities

alliance chain: open to specific organizations

2. At the global financial Technology Innovation Summit hosted by people's daily digital communication, Li Junshan, President of the national blockchain Research Institute and director of the blockchain Certification Center, said that there are three elements to judge whether a blockchain project is worth investing

3. Blockchain has the following characteristics:
decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Decentralized
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system
openness
the system is open, in addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all, and anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
autonomy
blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work
information cannot be tampered with
once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid, so the data stability and reliability of the blockchain are extremely high<
anonymity
since the exchange between nodes follows a fixed algorithm, their data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective by themselves), so the counterparties do not need to trust themselves by disclosing their identities, which is very helpful for credit accumulation

5.

the blockchain instry is on the eve of the application outbreak

as a kind of underlying technology, with the support of policy direction, blockchain is attracting more and more exploration of application landing. At the recent 2019 future business ecological link conference, Zhu Youping, deputy secretary of the general Party branch of China economic network management center of the state information center, pointed out that after 11 years of trial and error, the technology of blockchain has basically been commercially available, and the instry is now on the eve of application explosion

Wu Xiaochuan, a senior expert in Zhongan technology's blockchain development, told the 21st century business reporter that the biggest difficulty in the current blockchain landing instry is how to map the physical world and the blockchain world one by one, which needs multi-disciplinary joint efforts to solve. Internet of things technology is an important part of it. With the blessing of 5g, cloud computing and other technologies, it will bring more complement and support to the implementation and application of blockchain technology in the future

according to the prediction of tractica, the analysis organization, the global enterprise blockchain market will reach US $20.3 billion by 2025

key node of technology and standard promotion

compared with other underlying technologies, blockchain has also experienced a relatively tortuous development process, and there is still a way to go in terms of integration with multiple technologies and setting of its own standards

Zhang Xiaojun, head of Huawei's blockchain, pointed out in his speech at the conference that today's blockchain technology is more like the development stage of the Internet from 2002 to 2003. If the relevant standards of blockchain can be mature in 2020, including cross chain standards, storage standards and standard data format storage, large-scale commercial use will be accelerated in 2021

China's blockchain instry is still in its infancy, but with the continuous support of national policies, the continuous progress of instry technology and the increasing demand of downstream applications, China's blockchain instry is expected to continue to maintain high-speed growth. In 2011, the market scale of China's blockchain instry was less than 6 million yuan. By 2018, the market scale of China's blockchain instry has grown to 67 million yuan, maintaining a rapid growth rate of more than 80%. It is estimated that in 2022, driven by policy support and downstream demand, the market scale of China's blockchain instry is expected to exceed 450 million yuan

market size statistics and growth forecast of China's blockchain instry from 2015 to 2022 Zhu Youping pointed out to the reporter of the 21st century economic report that with the technical blessing of 5g and even future quantum computing, these weaknesses will be quickly made up

for more data sources and analysis, please refer to the in depth analysis report on business model innovation and investment opportunities of China's blockchain instry published by foresight Instry Research Institute. Meanwhile, foresight Instry Research Institute also provides instrial big data, instrial planning, instrial declaration, instrial park planning, instrial investment promotion and other solutions