Where is blockchain used

1. Since 2019, blockchain has been mentioned continuously. As the key technology of the next generation Internet, governments and giant enterprises have increased their efforts in the research and application of blockchain, and the competition for the right to set instry standards is becoming fierce
according to the "2019-2020 global blockchain technology layout and business investment trend research report" released by AI media consulting, with the further liberalization of policies in the future, China's blockchain instry will usher in a stage of rapid development, and is expected to enter the first echelon of global blockchain instry in an all-round way< The importance of blockchain technology to a new round of instrial reform has been paid more and more attention. Major countries around the world have accelerated the research and development of blockchain technology. However, because the instry has not yet formed a unified technical standard system, the application and promotion of blockchain are still subject to many restrictions< Second, the barbaric growth has ended and the instry has entered a new stage
after the capital winter of 2018, a large number of blockchain enterprises have been eliminated, the overall popularity of the instry has declined, and the capital has returned to rationality, and the barbaric growth stage of the blockchain instry is coming to an end. In 2019, policy factors will pull the blockchain back to the development wind, and capital and talents will flow into the blockchain instry again. With the continuous advancement of application, supervision and standardization, truly competitive blockchain enterprises will graally emerge, and the instry will usher in a new round of rapid growth.

2. Guizhou has released some standards, such as the quality model and key elements of blockchain system, the implementation process of data asset transaction of blockchain, the terminology and basic requirements of the implementation process of targeted poverty alleviation of blockchain, etc. now many local blockchain applications have been implemented. Our digital money package is also an application of blockchain technology, and now blockchain applications have been implemented one after another, Changsha high tech Zone has launched a SMIC blockchain service platform project, which is based on the blockchain + public service mode, and is soliciting enterprises to join the chain.

3. There are many applications that have been implemented in blockchain. Although they can not be adapted to all application scenarios, there are many applications on the market, such as micro three cloud. Their blockchain integral system has many application scenarios such as e-commerce and content payment, and has been certified by many businesses.

4. Blockchain is not a single technology, but the result of the integration of a variety of technologies. These technologies are combined with a new structure to form a new way of data recording, storage and expression.

5.

From the perspective of technology and architecture, I will tell you my understanding of blockchain in common language

what is blockchain? In a word, blockchain is a storage system. To be more specific, blockchain is a distributed storage system without an administrator and each node has all the data

What are the common storage systems like

as shown in the figure above, the bottom is data, and the top can write data. A space to store data, a software to manage data, provide an interface to write data, this is the storage system. For example, MySQL is the most common storage system

What are the problems of ordinary storage system? There are at least two common problems

the first is the problem of non high availability. There is a dangerous place for data. In technical terms, data is not highly available

The second problem is that there is only one write point. In technical terms, it is a single point of control

How do ordinary storage systems usually solve these two problems

in fact, MySQL can do a master-slave synchronization of al master, master-slave synchronization of al master, two nodes can be written at the same time. If you want to do a multi room multi live data center, in fact, multi room multi live data synchronization. What we should emphasize here is that multi-point writing often leads to the consistency problem of writing conflicts. Take MySQL as an example, suppose that the attribute of a table is self incrementing ID, then the data in the database is 1234 now. If one of the nodes writes and inserts a piece of data, it may become 5, and then these 5 pieces of data are synchronized to another master node, Before synchronization, if another write node inserts a piece of data, a piece of data with self incrementing ID of 5 will be generated. Then, after the generation, synchronize to another node, and the synchronized data will conflict with the two local 5's after it arrives, which will lead to synchronization failure and write consistency conflict. This problem will occur in the case of multi-point writing

how to ensure consistency in multi-point writing

the reform "Swan class" gives you more technical work

6.

- original title: market analysis of China's blockchain instry in 2019: enabling various instries to accelerate the application landing, there will be two opportunities for future applications

2019 - blockchain "mainstream application year"

since August 2018, the electronic invoice of blockchain was issued for the first time in Shenzhen. So far, it has issued more than 6 million electronic invoices, with an amount of 4 billion yuan, and has access to more than 5300 enterprises, Covering more than 110 detailed instries. In addition to the field of electronic invoice, blockchain has also been successfully implemented in many project scenarios, such as supply chain finance, legal deposit, cross-border payment, etc.

at the recent "thousands of people watching fire" conference of blockchain instry, the reporter of economic daily learned that in 2019, the technology implementation and application has brought blockchain into the "mainstream application year". On the one hand, many Internet giants have a solid technical foundation, on the other hand, they actively explore more valuable scenarios to find development opportunities in the enabling real economy

"blockchain technology can play the role of anchoring, sharing and increasing trust in the whole social information flow, making the chaotic information credible. Compared with the past, this is a" qualitative leap. " Zhang Kaixiang, chief architect of Weizhong bank's blockchain, said, "risk control and business rules design based on trusted data can improve efficiency, rece risks and rece operating costs." He pointed out that as a connector, it is not meaningful for a single enterprise to operate the blockchain, and it is more meaningful to share it as an open source solution to realize the ecological co construction of the instry

"we have been exploring and practicing open source, starting from the underlying technology platform and combining with the scenes of finance, instry, Internet of things, culture and entertainment, to jointly build an open, transparent and efficient technology and instrial community. Open source ecology helps to activate the creativity of the instry. We will continue to start from the open source community and improve a complete set of systems such as system construction and skills training, so as to benefit more people. "

in 2019, the market scale of China's blockchain instry will exceed 100 million yuan

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 application fields, China's blockchain instry is expected to continue to maintain high-speed growth. According to the statistical data of in depth analysis report on business model innovation and investment opportunities of China's blockchain instry published by foresight Instry Research Institute, the market scale of China's blockchain instry was less than 6 million yuan in 2011, and the market scale of China's blockchain instry increased by 32 million yuan by 2017, By 2018, the market scale of China's blockchain instry has reached 67 million yuan, always maintaining a rapid growth rate of more than 80%. It is predicted that the market scale of China's blockchain instry will exceed 100 million yuan in 2019, and 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

data source: the audited enterprise asset confirmation, registration and circulation records, etc., sorted out by foresight Instry Research Institute, are stored on the platform in the form of traceability. Based on this, banks can carry out fast financing and loan business, save the cost of guarantee and other links, greatly improve the efficiency, and make the risk of financing and loan controllable as a whole

electronic data storage is an important application field of blockchain technology.

the provisions of the Supreme People's Court on Several Issues concerning the trial of cases by Internet courts, which came into effect in September 2018, clearly states that electronic data storage can be solved by blockchain and other technical means. Xiang Dan, vice president of bibox digital asset trading platform, said that electronic data deposit is an important application field of blockchain technology“ Blockchain technology has the characteristics of preventing tampering, leaving traces in the event, post audit and security protection, which is concive to improving the credibility and authenticity of electronic evidence. The combination of blockchain and electronic data storage can rece the cost of electronic data storage, improve judicial efficiency and enable judicial business. For example, the contract management based on blockchain has been applied in many Internet courts. "

according to Zhou Jianrui, co founder of coinword, a trusted content community, the application of electronic data storage based on blockchain can also help deepen the reform of "release management and service" and improve administrative efficiency. In Beijing Haidian District and other pilot areas, blockchain technology is playing the role of efficient data sharing, secure transmission and credit support. When applied in the field of government affairs, it can realize real-time data sharing of various departments and effectively assist window personnel and examination and approval personnel to quickly verify the authenticity of materials. For example, the public security, civil affairs, housing management and other departments "on the chain", in dealing with real estate transactions can be fast and accurate, "one key" verification of multi-party information, greatly saving social costs

there will be two opportunities for the application of blockchain

because the social recognition of blockchain is not high, the people who understand and use blockchain are still very limited, and the penetration of blockchain into the real economy still needs a graal process. " Yuan Yuming, CEO of fire coin China, introced that they used the open, transparent and tamper proof characteristics of blockchain to explore a new path of art traceability and anti-counterfeiting by means of high-precision full pixel scanning and archiving; By constructing the trust mechanism in the multi-party cooperation scenario, the integral information platform for multi-party participation and resource sharing is developed“ Next, there will be two opportunities for blockchain application:

one is training. With the entry of enterprise giants one after another and the continuous penetration of the real instry, more people will learn about blockchain through training, which will become a new market demand

the second is to provide consulting and technical solutions to more traditional enterprises to help them penetrate the blockchain into more traditional fields and promote the consumption rection, efficiency enhancement, transformation and upgrading of the real instry. "