Is blockchain industry a science and technology industry

1. blockchain belongs to it technology, and finance is an application direction of blockchain
the core advantage of blockchain technology is decentralization, which can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the high cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

2.

Because the blockchain technology is not mature at this stage, and the infrastructure is not perfect, many applications are limited, and the overall application is still in a very early stage

First of all, the main function of blockchain is to store information. Any information that needs to be saved can be written to or read from the blockchain, so it is a database. Secondly, anyone can set up a server and join the blockchain network to become a node. In the world of blockchain, there is no central node (decentralization). Every node is equal and keeps the whole database. You can write / read data to any node, because all nodes will be synchronized in the end to ensure the consistency of the blockchain

3.

Blockchain Yearbook: since the second half of 2016, more than 10 blockchain instrial parks have been established or will be established in China. In addition to Shanghai, Hangzhou and Guangzhou, which have been maintaining a strong momentum in the field of Finance and science and technology, other provinces and cities such as Wuhan, Chongqing, Qing and Suzhou have also laid out blockchain instrial parks Blockchain Yearbook not only summarizes the latest detailed information of global blockchain instrial parks, but also includes the support policies of local governments for blockchain

according to the blockchain Yearbook, as of the end of November 2018, the number of blockchain companies with blockchain as the main business in China has reached nearly 1000, and the instry has initially taken shape. At present, many local governments are also actively positioning blockchain technology from the instrial height, and the policy system and regulatory framework are graally developed and improved

I. blockchain Instrial Park

1. Shanghai Collaborative Innovation Center was established in the earliest but the lowest profile

in November 2016, Zhongguancun blockchain instry alliance and Shanghai Intellectual Instrial Park reached cooperation to jointly create Zhongguancun blockchain Instry Alliance Shanghai collaborative innovation center. At the same time, Shanghai intelligence instry sky blockchain incubation base and Shanghai equity trading trusteeship center were officially established, which means that China's first application blockchain incubation base is officially located in Baoshan, Shanghai

according to the regulations of the park, all kinds of enterprises registered in the park will be given a certain proportion of supporting policies according to the contribution of the enterprises

on the day of the establishment of Shanghai Collaborative Innovation Center, Shanghai Ruizi Investment Management Co., Ltd., Shanghai kuaibei Network Technology Co., Ltd. and Shanghai miaojao Network Technology Co., Ltd. entered. Nearly two years since its establishment, the low-key park has not been exposed much

2. Hangzhou has three blockchain entrepreneurial Parks: occupying the right time, favorable location and favorable people

in the 2018 government work report, the Hangzhou government explicitly listed the blockchain instry as one of the seven future instries to be cultivated in Hangzhou. At present, Hangzhou has formed three major blockchain instrial parks represented by xixigu blockchain Instrial Park, China (Xiaoshan) blockchain entrepreneurship and innovation base, and China Hangzhou blockchain Instrial Park

xixigou blockchain Instrial Park was established in April 2017, located in xixigou Internet Finance Town, Qianjiang Xixi Hejing, and invested and operated by Hangzhou urban investment asset management group

China (Xiaoshan) blockchain entrepreneurship and innovation base was established by the cooperation of China Institute of electronic technology standardization, Hangzhou Xiaoshan District People's government and China Wanxiang Holding Co., Ltd., and settled in Xiaoshan in May 2017

China Hangzhou blockchain Instrial Park, located in Yuhang District, was established in April 2018, and Li Xiaolai, the big man of the currency circle, also attended the ceremony. At the launching ceremony, Yao Yongjie, chairman of Hangzhou longlan investment, announced the establishment of xiong'an global blockchain innovation fund with a total scale of RMB 10 billion

3. Wuhan blockchain Instrial Park encourages college students to start blockchain businesses

Beijing

on November 9, 2018, Zhongguancun Management Committee, Beijing Municipal Bureau of financial work and Beijing Municipal Commission of science and technology jointly issued the "Beijing financial technology development plan (2018-2022)"

the plan brings blockchain technology into the scope of Beijing's "financial technology" development plan, actively promotes the development of underlying technologies that affect the application of financial technology functions, and improves all kinds of technology market facilities, including artificial intelligence, big data, Internet technology (mobile Internet, Internet of things), distributed technology (cloud computing, blockchain), security technology (quantum computing Biometrics, encryption technology, etc

on September 29, 2017, the Beijing Municipal Bureau of financial work and other eight departments jointly issued the implementation measures for the construction of the capital's green financial system, which mentioned the development of green financial information infrastructure based on blockchain and the improvement of the security level of green financial projects

on April 6, 2017, the Management Committee of Zhongguancun Science and Technology Park printed and issued the "ZhongGuanCun national independent innovation demonstration zone to promote the deep integration of science, technology and finance, innovation and development support fund management measures", which mentioned that financial technology enterprises should be supported to provide services for financial regulators and financial institutions, and carry out the demonstration and application of artificial intelligence, blockchain, quantitative investment, intelligent finance and other cutting-edge technologies, Improve the efficiency and convenience of financial services

enterprises shall be given financial support according to 30% of the amount of technology application contract or purchase agreement signed between financial technology enterprises and financial regulators or financial institutions, and the maximum amount of support for a single project shall not exceed 5 million yuan

on December 30, 2016, the Beijing Municipal Bureau of financial work issued the "13th five year plan for the development of financial instry in Beijing", which mentioned that blockchain should be classified as a technology of Internet Finance and encouraged the development of this technology

on August 10, 2016, Beijing Municipal Bureau of financial work issued the performance tasks of Beijing Municipal Bureau of financial work in 2016, in which Article 8 mentioned promoting the introction of Zhongguancun Internet finance comprehensive pilot scheme and the establishment of Zhongguancun blockchain alliance

Shanghai

on April 28, 2017, the Shanghai Internet Finance Instry Association issued the self discipline rules for blockchain technology application of Internet Finance practitioners, which requires blockchain technology to serve the real economy, pay attention to the balance between innovation and standardization, and security, and clarify the bottom line of financial stability and information security, Internet financial institutions applying blockchain technology should report to local regulatory authorities and instry self regulatory organizations, and actively accept instry supervision and self regulatory management. The reporting information should at least include project name, responsible person, business model, business risk, risk control measures, etc

on March 7, 2017, the development and Reform Commission of Baoshan District of Shanghai printed and issued the key points of financial services in Baoshan District in 2017. It was mentioned that the construction of Miaohang blockchain incubation base and Songnan Shanghai Internet finance evaluation center should be followed up to promote the development of financial technology companies as an important part of Baoshan financial ecosystem relying on professional teams and market forces, We should form a development model in which venture capital funds and angel investors gather actively, science and technology finance support is strong, and enterprise investment motivation is fully stimulated

On December 8, 2017, the office of the people's Government of Huangpu District and the office of the Management Committee of Guangzhou Development Zone issued the measures for promoting the development of blockchain instry in Guangzhou Development Zone, Huangpu District, Guangzhou, aiming at the instrial and commercial registration place, tax collection and management relationship and statistical relationship within Huangpu District, Guangzhou Development Zone and its entrusted management and subordinate parks, Blockchain enterprises or institutions with sound financial system, independent legal personality, and commitment not to move away from their registered and office address within 10 years, not to change their tax obligations in the area, and not to rece their registered capital shall implement incentive measures such as cultivation award, growth award, platform award, Application Award, Technology Award, financial support, activity subsidy, etc. This is the biggest policy measure in China at present

on September 25, 2017, the Shenzhen Municipal People's Government printed and issued several measures to support the development of the financial instry in Shenzhen. It was mentioned that the financial technology special award focuses on excellent projects in the fields of blockchain, digital currency, financial big data application, and the annual award amount is controlled within 6 million yuan

on August 17, 2017, Shenzhen Economic and trade and Information Commission issued the notice of Shenzhen Economic and Trade Information Commission on organizing and implementing the 2018 special support plan for information security of new generation information technology in Shenzhen strategic emerging instries, which mentioned that it is necessary to support blockchain technology

on November 3, 2016, the Financial Development Service Office of Shenzhen Municipal People's government issued the 13th five year plan for the development of Shenzhen's financial instry, which mentioned supporting financial institutions to strengthen the research and exploration of emerging technologies such as blockchain and digital currency

Chongqing

on March 7, 2018, Chongqing municipal government issued the notice on implementing and promoting the task division of the guidance on supply chain innovation and application, which mentioned that it is necessary to study the use of blockchain, artificial intelligence and other emerging technologies to establish a credit evaluation mechanism based on supply chain

on November 7, 2017, Chongqing Economic and Information Technology Commission issued the opinions on accelerating the cultivation and innovative application of blockchain instry. It is mentioned that by 2020, we will strive to build 2-5 blockchain instry bases in Chongqing, introce and cultivate more than 10 leading enterprises in the domestic subdivision field of blockchain, and more than 50 blockchain enterprises with core technology or growth type, The introction and cultivation of more than 500 middle and senior talents in blockchain will build Chongqing into an important instrial highland and innovative application base of blockchain in China

4. Now some domestic enterprises have applied blockchain technology to the actual instry. For example, wangchain technology has applied blockchain to financial services, health care, IP right, Internet of things, sharing economy, communication, ecation,
social management, charity, public welfare, culture and entertainment, etc

5. The first batch of key projects will be launched in the 14th five year plan, and the first batch of tasks will be deployed in 2021. The key projects include: energy storage and smart grid technology, blockchain, instrial software, etc. Key projects are the carrier of the organization and implementation of the national key R & D plan, focusing on the major national strategic tasks, taking the goal as the guidance, from the basic frontier, major common key technologies to application demonstration, to carry out the whole chain innovative design and integrated organization and implementation. Among them, the blockchain special project plans to start seven guidance tasks around three technical directions in advance: 1. Basic theory of blockchain; 2. Common key technology of blockchain system construction; 3. Security supervision and governance technology of blockchain. It aims to carry out application demonstration in key fields and create an internationally competitive blockchain technology and instrial ecology
the inclusion of the "blockchain" key projects in the "14th five year plan" national key R & D plan is not only the implementation of the policy documents of national ministries and commissions, but also the need to speed up the blockchain technology and instrial layout, which is of great significance for the subsequent development of blockchain in China. At the same time, national ministries and commissions and provinces and cities have also formulated and issued relevant policies to support the development of "blockchain", attracting blockchain professionals in an all-round way, promoting blockchain technology research, speeding up the layout of blockchain instry, and bringing blockchain technology and instrial development into the fast lane
since 2014, easysaver has been deeply engaged in the research and development of underlying technology and application innovation of blockchain. Based on the electronic data preservation of blockchain, easysaver has launched a number of brands such as Junzi signature in the field of blockchain electronic signing, micro right in the field of blockchain intellectual property protection, and zhongzhengbao in the field of blockchain Internet justice. In the future, easy security will continue to deepen the research and development of the bottom layer of the blockchain, promote the breakthrough of the core technology of the blockchain, optimize the application of the blockchain in various instries, help more enterprises quickly complete the transformation and upgrading through "blockchain +", and release new momentum for the development of the digital economy.

6.

belongs to the information instry, blockchain is a distributed digital ledger, which records all the transactions that have occurred and have been unanimously recognized by the system. Each block is like a hard disk, which saves all the above information, and then encrypts it through cryptography technology. The stored information cannot be tampered with

can be applied in different fields, as follows:

1. In the financial field

blockchain has great potential value in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can save the third-party intermediary link and realize the point-to-point direct docking, so as to greatly rece the cost and quickly complete the transaction payment

2. The Internet of things and logistics

blockchain can also be naturally combined in the field of Internet of things and logistics. Through blockchain, we can rece logistics costs, trace the proction and delivery process of goods, and improve the efficiency of supply chain management. This field is considered as a promising application direction of blockchain

{rrrrrrr}

extended data

characteristics and development planning of blockchain

I. characteristics

1. The biggest feature of blockchain technology is to create an integrity system of digital society. In this system, not only data transmission is convenient, but also counterfeiting is difficult

2. Another feature of blockchain technology is that it can realize the timely sharing of data and can not be tampered with. In the field of government services, the use of blockchain data sharing mode can realize the joint maintenance and utilization of government data across departments and regions, promote business collaboration, and facilitate the masses to handle affairs

2. Development planning

major countries in the world are speeding up the development of blockchain technology, and China has a good foundation in the field of blockchain

the 13th five year National Informatization Plan issued by the State Council, the 13th five year development plan for information technology of China's financial instry issued by the people's Bank of China and the white paper on China's blockchain technology and application development led by the Ministry of instry and information technology all clearly put forward the need to strengthen the basic R & D and frontier layout of blockchain technology, The standardization roadmap of blockchain technology development in China is proposed

7. Blockchain technology is the underlying technology of bitcoin. In the early days, not many people paid attention to the underlying technology of bitcoin. However, bitcoin has been running stably for many years without any centralized organization operation and management, and there have been no problems. So many people have noticed that the underlying technology may have a great mechanism, and it can be used not only in bitcoin, but also in many fields. Therefore, bitcoin technology is abstracted, which is called blockchain technology or distributed ledger technology. So from a certain point of view, bitcoin can be regarded as the first application of blockchain, and blockchain is more similar to the underlying technology such as TCP / IP, which will be extended to more and more instries in the future
the main advantages of blockchain are that it does not need intermediary participation, the process is efficient and transparent, the cost is very low, and the data is highly secure. Therefore, if there is any demand in these three aspects, the instry will have the opportunity to use blockchain technology. For example,
1. Banking 2. Payment and transfer 3. Network security 4. Academic record 5. Voting 6. Car rental and sales 7. Network and Internet of things 8. Forecasting 9. Online music 10. Carpooling 11. Stock trading 12. Real estate 13. Insurance 14. Medical 15. Supply chain management 16. Cloud storage 17. Energy management 18. Sports management 19. Gift card and customer loyalty program 20. Government and public welfare

8.

Selenium is a chemical element and a nonmetal

There are two forms of selenium in nature: inorganic selenium and plant active selenium. Inorganic selenium generally refers to sodium selenite and sodium selenite, which are obtained from the by-procts of metal deposits; The latter is formed by the combination of selenium and amino acids through biotransformation, and generally exists in the form of selenomethionine

There are four main functions of selenium:

1. Scientific confirmation: it is precisely because of & quot; Selenium & quot; It can prevent organ aging and pathological changes, delay aging, enhance immunity, resist diseases, resist toxic heavy metals, rece the side effects of radiotherapy and chemotherapy, and prevent cancer

Second, to prevent diabetes. Selenium is an active component of glutathione peroxidase (GSH PX), which can prevent pancreatic islets β Cell oxidative damage, make its function normal, promote sugar metabolism, rece blood sugar and urine sugar, improve the symptoms of diabetic patients

Third, detoxification and detoxification. Selenium has a strong binding force with metal and can resist the toxicity of cadmium to kidney, gonad and central nervous system. Selenium combines with mercury, lead, tin, thallium and other heavy metals in the body to form a metalloselenoprotein complex and detoxify

Prevention and treatment of liver disease. After 16 years of epidemiological investigation of liver cancer in China, Chinese medical expert Yu Shuyu found that the selenium content in the blood of residents with high incidence of liver cancer is lower than that in low incidence area of liver cancer. The incidence rate of liver cancer is negatively correlated with blood selenium level. She added selenium to 130 thousand residents in Qidong County of Jiangsu Province, and confirmed that selenium supplementation reced the incidence rate of liver cancer by 35%, and the incidence rate of liver cancer was 50%. p>

extended data :

don't blindly supplement selenium, the key to a balanced diet

in recent years, many people have joined the "army of selenium supplement", believing that selenium supplement is helpful to "cancer prevention". However, this practice is not worth encouraging, because selenium, like other trace elements, should adhere to the principle of appropriate amount, not more is better, and it is not suitable for everyone

selenium has such a strong anti-cancer effect. The results of the study have not yet been reached. Some studies have shown that selenium can rece the incidence rate of some cancers, but some studies have negated this conclusion. Therefore, the scientific research evidence of selenium as an anticancer agent is still very limited

The range between the beneficial and toxic amounts of selenium is the narrowest among all trace elements, so the most technical content is required for selenium supplement, and it will be excessive if you are not careful. Under normal circumstances, the recommended daily selenium intake is 50 ~ 200 μ G

In addition, excessive supplement of selenium will hinder the absorption of manganese in human body, and lack of manganese will cause a series of health problems. Therefore, we can not blindly supplement selenium. Some researchers warn that blind selenium supplement may increase the risk of some diseases. If you want to supplement selenium, you should go to a regular hospital to determine the level of trace elements in the body, and supplement selenium under the guidance of doctors to avoid poisoning

human body can not synthesize selenium itself, and food is the main source of selenium. A healthy person who is not partial to or picky about food can meet the body's demand for selenium through a balanced diet without additional supplement

all kinds of selenium rich foods on the market, such as selenium rich rice, selenium rich vegetables, etc., can be eaten occasionally, but it is not necessary to buy them often. If you must eat selenium rich food, it's best to choose the one marked with selenium concentration, calculate the body's needs and then buy it

The content of selenium in natural food was as follows: animal viscera, seafood, fish, eggs, meat, grain, milk, onion, garlic, vegetables and fruits. Sesame and garlic also contain a lot of selenium. The selenium content of the same crop in different areas is very different, and there is an order of magnitude difference of 1000 times or even 10000 times