Healthy city blockchain

1. Absrtact: blockchain technology is the underlying technology of bitcoin. Without any centralized organization operation and management, bitcoin has been running very stably for many years (perfectly for seven years), and there has been no problem (no missing account). Therefore, some people have noticed its underlying technology and abstracted bitcoin technology, which is called blockchain technology, Or distributed ledger technology
what is centralization

the so-called centralization means "ownership" or ownership by the company. For example, Tencent's q-coin, which is issued by Tencent, is a kind of centralized electronic currency, including the total amount and the issuing method, is supervised and controlled by Tencent. You can use it, trade and go shopping, but you always have to operate in the framework of Tencent, and the final right of interpretation belongs to Tencent

the issuing mode of bitcoin is preset by the program and encryption algorithm, and runs on multiple nodes all over the world. No one or organization can modify it (everyone has his own account book, so it is impossible for one person to control everyone's account book at the same time. If there is such a technology, why should it be so complicated, If you want to blackmail money into your account, you will be the richest man in the world. There is no one left, And it is not controlled by any single person or organization
take an example: for example, Lao Zhang borrows 100 yuan from Lao Li, but Lao Li is afraid that he will default, so he asks the village head to do notarization and write down the account. This is called centralization. But if you don't find the village head, you can use the loudspeaker to shout in the village: "I Lao Li lent Lao Zhang 100 yuan! Please put it in the account book. "We all put this account in our own account book. This is called decentralization
anyone who transfers money between them will release information through loudspeakers. After receiving the information, everyone will record the transaction in their own account book. With distributed ledgers, it doesn't matter if Lao Zhang or Lao Li's ledgers are lost, because Lao Zhao, Lao Ma, Lao Wang and other families have ledgers

the main advantages of blockchain are that it does not need intermediary participation, the whole process is open and transparent, and the cost is low, and the data security is high

at present, blockchain is in a stage where everyone talks about blockchain, but can't perceive its actual technical charm. Since 2017, it has graally come into our sight, and we have graally realized that bitcoin is more fierce than real estate speculation (the price of mining machinery has skyrocketed! The news is on the screen But I still don't know

so, in which fields can blockchain be applied, what kind of changes will it bring to our future life

the core key: everyone has an account book, everyone has an account book, and the information recorded in each person's account book is consistent and synchronous, and the information is completely transparent. If it is fake, it will be the public enemy of the whole people, which greatly increases the cost of data fraud

core key 2: decentralization, which does not need a central system to manage data, prevents some people from changing data and damages the interests of the majority of people

Application:

1. Account security and privacy protection: currency transfer, exchange, payment system. Blockchain can help prevent data manipulation and fraud, prevent distributed denial of service attacks (DDoS), and effectively protect users' network privacy. Key words: anti counterfeiting, anti-counterfeiting, loan payment

2. Copyright regulation and interest disputes: for example, when a song is downloaded, from the author to the procer and then to the singer, they can get payment in real time through the blockchain, without having to wait for a long time like the traditional way, or even get no reward e to right disputes. Instead of waiting for publishers to provide royalty checks, creators can freely control the process from publishing to payment through blockchain application. Key words: real time receipt, no property dispute

3. Internet of things + artificial intelligence: the intelligent devices in the Internet of things based on the blockchain will be used to monitor the real-time situation of urban infrastructure such as bridges, roads, power grids, etc. the blockchain can connect these intelligent devices together for unified management to help them monitor more efficiently. This will help people better understand how to build a smart city in the future. Key words: unified monitoring, intelligent city

4: proof of existence: in life, once you are asked to prove that you are you, that your mother is your mother, that you have never been married, that the house belongs to you, and so on, things seem very simple. Once it falls on you, it is a great trouble. The application of blockchain technology can perfectly solve the above embarrassment. At that time, all the information that belongs to you will be recorded accurately and can not be tampered with. No one has the right to change it. When the technology develops to a certain stage, birth certificate and marriage certificate may be recorded on the blockchain. Keywords: no keywords

in addition to the application scenarios mentioned above, blockchain technology can also be applied to e-commerce, data storage, logistics and other fields. As long as we grasp the characteristics of blockchain technology, it will become easy to understand.

2. Block chain technology is considered to be the fifth core technology most likely to lead to disruptive revolution. After the stage of chaos and bubble period, with the intervention of national policies and the implementation of relevant supervision, +B39 will graally take the lead and develop in a healthy direction.
in 2017, blockchain became the focus all over the world. If at the beginning, the emergence of blockchain made people in the instry excited, and the ordinary people took an indifferent attitude and just ate melon Road, now it can be said that blockchain has quickly and deeply entered the public field of vision
the concept of blockchain was proposed by Nakamoto in 2008. It has the characteristics of decentralization, non tampering, traceability and so on, attracting many investors to participate in it. Blockchain has graally entered into various instries, which has brought considerable changes as well as some adverse effects
through the collection and collation of relevant data of China's blockchain instry, analysts analyzed and discussed the development trend of China's blockchain instry. The rising trend of blockchain popularity is obvious. From the network index trend chart of blockchain and digital currency in the past six months, it can be seen that the popularity of blockchain only increases, and even rises explosively by the end of 2017. According to the trend chart, it can be predicted that the growth of blockchain network index will show a gentle trend in the near future
the network index of digital currency closely related to blockchain is not much different from that of blockchain before 2018. That's because the popularity of blockchain ignites the value of bitcoin, and many people take the opportunity to follow suit, which makes the market once chaotic. Since the beginning of 2018, the network index of blockchain has far exceeded that of digital currency. This change shows that more people are focusing on blockchain, which will be more concive to the healthy development of blockchain technology
as the value of digital currency represented by bitcoin doubled, ICO came into being. ICO financing mode is similar to and different from the traditional IPO Financing Mode. It can open the global market and get more development opportunities. However, e to many people's ulterior motives and the fact that ICO does not go through any strict review process at present, the ICO market is in chaos. The positive and negative effects of ICO also make various countries hold different attitudes in the face of this mixed market
according to the attitude information table of some countries towards ICO, China and Japan have the most clear attitude. China has banned ICO projects and defined them as illegal financing; Japan allows ICO projects and takes the lead in establishing blockchain alliance; The Philippines, Russia, Canada and other countries adopt the mode of supervision and development, do not prohibit ICO projects, and actively build regulatory systems. The United States is a federal country, and the attitude of each state is different
it is worth mentioning that the attitude of Hong Kong and Macao of China towards ICO coincides with that of the mainland, while that of Taiwan is quite different. The person in charge of "Taiwan financial regulatory authority" promised to adopt a more friendly attitude and support enterprises to develop and adopt cryptocurrency and blockchain technology in Taiwan
the top 10 national blockchain platforms are mainly concentrated in Beijing, Shanghai and Guangzhou
according to the national blockchain platform TOP10, bitmainland, Babbitt / blockyuan and fire coin net have taken the top three positions. The blockchain platforms of TOP10 are mainly concentrated in Beijing, most of which were launched earlier than 2016. Generally speaking, the development of blockchain has driven the development of related instries, and also set off a wave of entrepreneurship
the enterprises related to blockchain are mainly concentrated in Beijing, Shanghai and Guangdong, which are affected by the high barriers of blockchain technology. Beijing is rich in human resources and has a good entrepreneurial environment. Shanghai has a unique financial position and has the greatest possibility of incubating the most successful enterprises in the application of blockchain. Guangdong has a strong entrepreneurial atmosphere, which can attract relevant entrepreneurs and promote the landing of relevant enterprises. In addition, Hangzhou also benefited from its excellent Internet finance instry, and the blockchain instry performed well. With the development of blockchain, there will be more related enterprises in more cities< The heat of br/> block chain has also been reced, and a large number of official account have been generated. From the TOP10 official account of WeChat, we can see that the number one fan of "digital money trend maniac" has been estimated to be about 800000 in the past seven days, and second "Wang Chai block chain journal" predicted that the active fans are also close to 500 thousand people. The estimated number of fans who are close to 400 thousand is "third". The official account also shows that more and more people are paying attention to the block chain instry.
blockchain is becoming more and more popular. The average salary of related posts was 23800 yuan before November 2017, and it has reached 25800 yuan by 2018. According to the chart of skills requirements for blockchain positions, the most important is the commonly used development languages (go, C + +, Java). In addition, we also need to have sufficient understanding of cryptography, formula algorithm, and smart contract. In addition, there are also positions with relatively low operation threshold. In general, the talent gap in the blockchain instry is relatively large< Br/> block chain technology is considered to be the fifth core technology most likely to trigger disruptive revolution. After the stage of chaos and bubble period, with the intervention of national policies and the implementation of relevant regulation, it will graally take the right track and develop towards health. The development of br/> block chains will inevitably proce bubbles, but these bubbles will graally become controllable with the healthy development of block chains. The development prospects of block chains and the innovations they can bring are unpredictable. In the future, let's leave this stage to it and watch its performance< br/>

3. Government management
some countries have shown great interest in the blockchain technology of decentralized data management framework to store public data. For example, essentia is developing an e-government project with the Central Union of agricultural procers and forest owners in Finland, The project will apply blockchain technology to enable urban and rural residents in Finland to query various records, fully meet the needs of residents and employers, and improve the employment rate. In addition, the use of this technology can also improve the efficiency of government operation, so that residents can easily query ecation, public records, voting and other information
waste recycling
for example, an intelligent waste management system in China adopts the RFID technology of waltonchain company. Using this blockchain application of waltonchain, it can effectively monitor the waste level, so as to improve the management and operation efficiency and resource optimization
identity recognition
chug, a Swiss city known as "encryption Valley", has developed an identity authentication system with its partner uport by using blockchain technology, through which citizens can participate in online voting and proof of residence
border control
essentia has been in contact with the Dutch government, hoping to use its blockchain technology to establish a set of border inspection system for the Dutch government to check passengers between Amsterdam and London. At present, passengers of Eurostar high-speed rail between the two countries need to undergo border control checks at multiple locations. Essentia is working on a blockchain based solution that will securely store passenger data so that inspection records from the Netherlands can also be reviewed by UK Border agencies. Blockchain technology will ensure that the data has not been tampered with and is verifiable and accurate
health care
as we all know, medical records are very scattered and prone to errors. Inconsistent data processing process will make hospitals and clinics often forced to deal with some incorrect or incomplete patient records. For example, Medrec, a blockchain electronic medical record system developed by MIT, uses blockchain technology to promote data sharing. At the same time, it can also provide authentication and confidentiality services
enterprise management
as enterprise customers of Microsoft azure applications, they can make use of blockchain as a service (baas), which will enable enterprises to access smart contracts and blockchain applications in a secure hosting environment. According to media reports, Google is also developing a proprietary blockchain project to support its cloud based business. And alpha, Google's parent company, is developing a distributed accounting project that third parties will be able to use to store data related to Google's cloud services
medical data
medical centers that digitize patient records do not store data among multiple devices. They usually store data on centralized servers, which has become the main target of hackers. The wannacry attack on NHS hospital in the UK proves this. But in addition, even if the security risk is ignored, there is still the problem of fragmentation. At present, there are more than 50 different electronic medical record systems (EHR) operating in hospitals in different cities around the world, and there are usually dozens of different medical application systems in the same city. These independent systems can't perform interoperation, and the data of patients in each hospital can only be distributed in different data storage centers
in the case of patients' life and death, the lack of reliable medical data contrast and slow operation efficiency will be fatal. Essentia's application framework solves all these problems by using blockchain based system, which will store all clinical data of patients, and can access these data immediately regardless of geographical boundaries. In this system, the patient's medical record privacy can also be protected, and only the authorized medical personnel can access it in a specific period of time
Music Proction
one of the main advantages of blockchain technology is that it eliminates unnecessary middlemen or middlemen. The music instry is a typical example. In this instry, if artists are inefficient, they will get very low remuneration. At this time, a number of blockchain based projects have emerged to seek a fairer trading and business environment for music creators, such as artbit, a former gunshot rose drummer Matt Soren as director
carbon compensation
as a highly instrialized country, China's environmental change is huge. In March 2017, IBM and energy blockchain labs jointly launched the hyperledger fabric blockchain project to discover China's carbon assets, which not only creates a measurable and auditable system for tracking carbon emissions, but also provides a tradable market for companies seeking to offset energy consumption and stimulate green instrial practice
supply chain management
supply chain management is considered to be one of the better cases of applying blockchain, because it is very suitable for the express delivery of such goods from delivery to receipt or the whole process from manufacturer to store. IBM and Wal Mart have jointly launched a blockchain food safety alliance in China. The project is also jointly operated with Jingdong company, aiming to improve food delivery tracking and safety assurance, so as to make it easier to trace food safety issues
facts have proved that China is a mature experimental base for blockchain projects, and it is also the location of the world's first blockchain for agricultural procts (5.180, - 0.25, - 4.60%). Louis Dreyfus Co, a world-famous food trader, has established a blockchain technology project in cooperation with Dutch and French banks. Using this project technology, the transaction settlement is faster than traditional methods in the process of selling soybeans to China
diamond instry
De Beers Group, the world's most famous diamond company, has its own blockchain company and has started operation. Its purpose is to "establish a digital record for every diamond registered on the platform". Considering the origin of diamonds, the ethical standards of origin, and the risk of diamond quality, blockchain technology is a good choice, because every record of it is indelible, and it will ensure that the electronic data of each diamond is as permanent as itself
real estate transactions
currently, Ukraine is the first country to use blockchain technology to promote property transactions. Michael Arlington, the founder of techcrunch, a famous technology website and cryptocurrency player, remotely purchased and resold a real estate in Kiev through the smart contract of Ethereum blockchain. This transaction was completed by propy, a start-up company specializing in blockchain real estate transactions
fisheries
blockchain technology is now being used to support the development of sustainable fisheries. Illegal fishing is a common problem in this instry. The distributed ledger technology of blockchain provides a proof of the capture source, processing and sale mode. This "net to table" supply chain allows inspectors to determine whether the fish caught came from a human rights violation area or from a country affected by economic sanctions
art paintings
similar to diamond trading, the art instry relies on the provenance and authenticity of art works. Although the blockchain cannot identify whether a painting is an original or a fake, it can be used to prove the identity of the previous owner of the painting. In addition, blockchain technology is now also used as a means to obtain works of art. It can make tangible goods easily traded and exchanged anywhere in the world without physical transfer from a secure storage place
public facilities
in Freemantle, Australia, a project dedicated to distributed energy and water system management is using blockchain technology, and solar panels (3.340, - 0.06, - 1.76%) are being used in sunny areas to obtain electricity, which is then used to heat water and provide electricity, All these energy conversion and use information will be recorded in the blockchain data
in Chile, the National Energy Commission has started to use the blockchain technology as the verification of the country's energy use data, and some sensitive data will be stored in the blockchain. The application of this technology can be regarded as a means for the modernization and safe operation of power infrastructure in this South American country
LGBT rights
blockchain can help build a "pink economy" and help LGBT communities fight for their own rights without revealing people's identities. This is an extremely important issue, because crimes of discrimination against homosexual groups often occur, especially in countries notorious for human rights violations, Homosexuality is illegal, or at least not allowed
catastrophe bonds
catastrophe bonds may be the only hope for victims of earthquakes, tsunamis and other natural disasters. Blockchain allows fast and transparent reconciliation between the parties, and can ensure that the system can continue to operate normally even under unmanned operation. Now, blockchain has been successfully used in the settlement mechanism of catastrophe bonds
tourism
local institutions in Hawaii are studying how to use blockchain technology to improve the economy, such as opening bitcoin and other monetary payment means to facilitate tourists' transaction of local goods and services. In this way, the Hawaiian government hopes to attract tourists, especially those from Asia, to spend more money in the local area and improve the economic development of Hawaii
homeland security
in 2016, the US Department of Homeland Security (DHS) announced a project that will use blockchain technology as a means of secure storage and capture of data transmission. DHS uses Factom's blockchain technology to encrypt and store data captured by security cameras and other sensors. The application of this blockchain technology will greatly rece the risk of data leakage. At present, the project is still in progress
maritime transportation
it is self-evident that blockchain is used to record ship transportation data. At present, some local shipping projects have adopted distributed ledger technology. In the maritime logistics instry, blockchain technology can make the inevitable cumbersome management proceres in international trade more transparent and orderly. Maersk, one of the world's largest shippers, is a pioneer in the use of blockchain. Today, Yixing international shipping company Zim has also made follow-up use of blockchain technology.

4.

Blockchain technology is widely used. Under the integration of new technologies, the main application scenarios of blockchain include finance and insurance, intelligent manufacturing, intelligent environmental protection, energy and power, health care, ecation, culture and innovation, smart city, social welfare, agriculture and many other fields

1. blockchain + finance

   blockchain can help financial institutions solve problems such as trust and data sharing

3. blockchain + right art

   Tianhe Guoyun's blockchain right system

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3. Blockchain + government

in statistics, voting, budget management and other aspects, blockchain can rece costs, improve efficiency, and increase transparency, so as to prevent the risk of failure of centralized system

4. Blockchain + insurance

fraud identification and risk prevention: by placing insurance claims under an unchangeable general ledger, blockchain helps to eliminate the common sources of fraud in the insurance instry

property insurance and accidental injury insurance: policies and shared ledgers recorded in the form of smart contracts can improve the efficiency of property insurance and accidental injury insurance

Health Insurance: blockchain technology enables medical records to be encrypted and shared among health service providers, thus improving the interoperability of the health insurance ecosystem

Reinsurance: the information security of reinsurance contracts on the blockchain platform can be ensured through the form of smart contracts, which can rece the amount of information and simplify the payment process between insurers and reinsurers

5.

Xi'an railway station to Xi'an Tangyuan International Convention and Exhibition Center

No.25, transfer to No.6

Xi'an station

walk 560 meters

get on at railway station

No.25, 16 stations

get off at Shiyang Farm Station

get on at Shiyang Farm Station

you 6, 7 stations

get off at Tangyuan station

walk 350 meters

China Tangyuan International Convention and Exhibition Center

6.

First, it is concive to promoting employment and entrepreneurship. Through the release of new occupation information, we should standardize the new occupation, speed up the development of employment posts, expand employment capacity, strengthen vocational guidance and employment services, and promote the employment and Entrepreneurship of workers

Secondly, it is helpful to promote the reform of vocational ecation and vocational training. We should promote the adaptation of specialty setting and curriculum content to social needs and the actual proction of enterprises, improve the quality of vocational ecation and training, and realize the close connection between talent training and social needs

Thirdly, it is helpful to improve the system of occupational classification and occupational standards in China. Bringing new occupations into the unified management of national occupational classification and speeding up the development of occupational skill standards according to the needs of instrial development and talent team construction are concive to the establishment of a dynamic and updated occupational classification system and the improvement of the occupational standard system

extended data:

the new occupation information mainly includes: occupation name, occupation code, occupation definition and main work tasks, which is basically consistent with the occupation information in Dadian. Green occupations with green features such as "environmental protection, low carbon and recycling" are labeled as green occupations, and the first letter of Chinese pinyin "L" of "green occupations" is uniformly used

it is an international practice to establish a new career information release system, which is also an important part of the dynamic adjustment mechanism of career classification. In 1999, China issued the first encyclopedia, which included 1838 occupations. After entering the new century, with the rapid development of China's economy and society, the adjustment of instrial structure, the progress of science and technology, and the mass entrepreneurship and innovation, many new business forms emerge in the society, which need to be recognized and standardized at the national level, and the new career information release system arises at the historic moment

7. 1.
beekeeping is an unimportant business opportunity in rural areas. Beekeeping is a powerful measure for surplus labor force to get rich. It is called "quick acting agriculture". Beekeeping can be vigorously developed in areas with rich honey source vegetation and has great potential.

2.
hairy crab breeding hairy crab is very popular on the new generation of dining table, There are a lot of hairy crabs in the market, but the market price has been stable at a high level, and there is no downward trend. Take the market price of hairy crabs in Yangcheng Lake as an example. Generally, eight hairy crabs can be sold for about 1000 yuan, so the market price of hairy crabs in 2018 is basically the same, Hedgehog breeding hedgehog is a kind of precious animal which integrates medicine and meat. The change of natural environment and human hunting make the number of wild hedgehog sharply decrease. Therefore, hedgehog is also the second class protected animal in China. Hedgehog breeding instry is a rising instry in recent years, The popularity of cultivated hedgehogs in the market is no less than that of wild hedgehogs