Blockchain can solve rural problems

1. As a kind of decentralized database, blockchain has the characteristics of openness, distribution and irreversibility. As an electronic data storage platform, blockchain has the advantages of low cost, high efficiency and stability. At present, blockchain has been applied in many fields and has brought many changes to our life. Now many electronic contract platforms, such as Fada This kind of blockchain technology has been applied in the chain of evidence, and the blockchain technology has also been accepted by the court

2. Jinwowo analysis believes that blockchain mainly solves the trust and security problems of transactions. Once the information is confirmed and added to the blockchain, it will be permanently stored. Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of data on a single node cannot be realized. Therefore, the data stability and reliability of blockchain are very high
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, the rights and obligations of each node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system.

3. In one sentence, it is decentralization
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
the so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography
broadly speaking, blockchain technology is a new distributed infrastructure and computing method, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data< Advantages:
1) the algorithm is simple and easy to implement
2) there is no need to exchange additional information between nodes to reach a consensus
3) it takes a lot of cost to destroy the system< Disadvantages:
1) waste of energy
2) it is difficult to shorten the block confirmation time
3) the new blockchain must find a different hash algorithm, otherwise it will face bitcoin attack
4) it is easy to generate bifurcation and needs to wait for multiple confirmations
5) there is no finality, and checkpoint mechanism is needed to make up for it.

4. Safety still needs to understand the platform carefully, including the risk control measures of the platform. As long as you want to choose a bank deposit, performance insurance, but this is for investment.

5. I choose Chinese currency! Low operation delay, idle can also save money mining EOS, very suitable.

6. The art instry
ascribe allows artists to declare ownership by using blockchain technology, issue numbered, limited edition works, and target any type of art in digital form. It even includes a trading market where artists can buy and sell through their websites without any intermediary services<

in the legal instry
bitproof is the most advanced of many document timestamp applications emerging in recent years, which will make the traditional notarization method a thing of the past. Bitproof offers more services than free versions including blocksgin and originstaemp, including one for intellectual property. Interestingly, bitproof recently cooperated with an it school in San Francisco to put their students' academic certificates on the blockchain, completely redefining how to handle and use diplomas and student certificates<

development instry
colu is the first enterprise to allow other enterprises to issue digital assets. Many people are impressed that they can "token" all kinds of assets. Although the free bitcoin wallet couperparty also allows simple tokens to be issued and traded among other wallet holders, the tokens of colu can be set with various states and types, can be detached from or returned to the system, and can be stored on BitTorrent's network when the data stored on the blockchain is too large<

the real estate instry
they plan to modernize the whole instry chain process and solve various problems faced by everyone when participating in real estate, including naming process, land registration, agency, etc
viewing blockchain from a financial perspective
the essence of money: money is just a kind of broad value consensus, and it does not have value precipitation
the relationship between assets and currency: currency describes assets
what is digital assets: assets are digital, segmentable and tradable, and the price is determined by the supply and demand market, not by the value intermediary currency<

Internet of things
application scenario analysis [7]
a possible application scenario is: generate corresponding behavior through transaction, assign address to each device, inject a certain fee into the address, and perform relevant actions, so as to achieve the application of Internet of things. Similar to: PM2.5 monitoring point data acquisition, server leasing, webcam data call, DNS server, etc
in addition, with the increasing number of Internet of things devices and the increasing demand for edge computing, a large number of devices need to adopt a distributed self-organization management mode, and the requirement for fault tolerance is very high. The distributed and anti attack characteristics of blockchain can be well used in this scenario
IBM [7]
IBM has continuously invested in the research and development of the Internet of things for decades, and is exploring the use of blockchain technology to rece the cost of Internet of things applications
in early 2015, IBM and Samsung announced their cooperation in developing adept system
logistics supply chain [7]
the supply chain instry often involves many entities, including logistics, capital flow, information flow, etc. there are a lot of complex cooperation and communication between these entities. Under the traditional mode, different entities keep their own supply chain information, which is seriously lack of transparency, resulting in higher time cost and money cost, and it is difficult to trace and deal with problems (false claim, counterfeit goods, etc.)
through the blockchain, all parties can obtain a transparent and reliable unified information platform, which can view the status in real time, rece the logistics cost, and trace the whole process of proction and transportation of goods, so as to improve the efficiency of supply chain management. When disputes arise, the proof and tracing become clearer and easier
this field is considered as a promising application direction of blockchain
for example, the carrier can scan the QR code to prove that the goods arrive at the designated area, and automatically charge the fees agreed in advance. We can refer to how the blockchain changes the supply chain finance and brings transparency to the supply chain
skuchain creates a new supply chain solution based on blockchain to realize the synchronization of commodity flow and capital flow, and alleviate the problem of counterfeit goods
public network service [7]
the normal operation of the existing Internet is inseparable from many nearly free network services, such as domain name service (DNS). Anyone can query the domain name for free. Without DNS, all kinds of websites can't be accessed. Therefore, for the network system, similar basic services must be safe, reliable and low-cost
blockchain technology just has these characteristics. The DNS system based on blockchain will no longer have all kinds of wrong query results, and can provide services stably and reliably

Insurance Instry
in the past two years, the hottest topic in the field of science and technology can not be separated from blockchain technology. This underlying technology, born out of bitcoin, has proved its highly secure and reliable architecture and algorithm design with more than seven years of stable operation. At the same time, with innovative technologies such as distributed ledger and smart contract, it has opened up a huge imagination space for instrial upgrading of many instries. Some instry experts even predict that blockchain technology will set off the second Internet revolution
the financial instry has always been the most sensitive to advanced technology. Traditional banking and securities giants have been investing in blockchain venture capital since 2014. In two years, the total global investment is as high as US $1 billion, and there is no lack of a-round financing such as US $60 million of Dah and US $50 million of blockstream. In addition to capital investment, major companies have personally participated in and promoted specific business applications: for example, the LINQ blockchain equity exchange launched by the Nasdaq Stock Exchange in the United States has started issuing tests at the end of 2015; The R3 CEV alliance formed by 43 multinational banks in the world has been testing and improving the inter-bank clearing alliance chain, with unprecedented speed and participation
although the insurance instry's participation in blockchain technology is relatively conservative, it has been actively exploring and researching in the academic field. At the end of 2014, the 50 page "lifelong chain" special research report launched by the European and American insurance instry forum initiated by the famous Z / yen Group Consulting Group in the UK discussed the innovation and change that blockchain will bring to the insurance instry from many aspects
while studying blockchain technology, I have exchanged with many domestic experts and scholars in the insurance instry, and deeply discussed the specific foothold of blockchain in the insurance business from the perspectives of business process and company management. Now I share with readers some thoughts on credit risk management.

7. The relatively stable currencies in foreign exchange are US dollar and euro< Note:
1. Foreign exchange is the creditor's right that the monetary Administration (central bank, monetary administration, foreign exchange stabilization fund and the Ministry of Finance) can use in the event of balance of payments deficit in the form of bank deposits, treasury bonds of the Ministry of finance, long-term and short-term government securities, etc
it includes foreign currency, foreign currency deposits, foreign currency securities (government bonds, treasury bonds, corporate bonds, stocks, etc.), and foreign currency payment certificates (bills, bank deposit certificates, postal savings certificates, etc.)< Foreign exchange currency pairs have the following currencies:
1. US dollar (USD): the monetary unit of the United States. More than 80% of international trade and foreign exchange transactions use US dollar as the valuation currency. The US dollar is the most active currency and plays an absolutely important role in international trade and finance
2. Euro: the unified currency of the European Monetary Union. With more than a dozen member countries and more than 300 million people, this alliance has higher supply capacity than the United States, so the euro has the same strength as the US dollar
3. British pound (GBP): the monetary unit of the United Kingdom. After the Bretton Woods conference in 1944, the US dollar replaced the pound as the world's financial hegemony, and now the pound has become the third largest reserve currency in the world< 4. Japanese yen (JPY): the monetary unit of Japan. In terms of economic and trade relations, Japan's trade surplus mainly comes from the United States, while the foreign trade of the United States mainly comes from Japan. The yen is still the most important currency in Asia
5. Hong Kong dollar (HKD): the monetary unit of Hong Kong Special Administrative Region of China. The Hong Kong dollar is famous for its linked exchange rate system, which is based on the US dollar and maintains a fixed exchange rate
6. Swiss Franc (CHF): the legal tender of the Swiss Federation. Switzerland is a neutral country, the domestic political and economic situation is stable, and the Swiss bank is the most confidential bank in the world, so the Swiss franc is often the rival currency of the US dollar.

8. From 2009 to now, blockchain technology has developed from blockchain 1.0 era to blockchain 3.0 era, from the special technology of digital currency to the open technology of social field. With the promotion of the 13th five year plan for national informatization and the national big data strategy, the deep integration of blockchain and real economy is becoming the general trend
as China's agricultural instry has been facing many problems such as highly dispersed operators and long instrial chain, there are many obstacles on the road of transformation and upgrading. The blockchain has the point-to-point trust under the distributed cooperation, and the tamperable records can just solve many pain points in the uplink of agricultural procts, eliminate the information asymmetry to the greatest extent, improve the information transparency and timely response ability of the whole instrial chain, and realize the value-added of the whole instry. Therefore, blockchain technology is entering the field of agricultural procts proction and circulation, and is profoundly transforming China's agriculture
recently, China's first white paper on agricultural blockchain was released by China rural network. Through analyzing the actual case of China rural network's efficient integration of proction end and sales end by using Internet of things and blockchain technology, it is confirmed that the application of blockchain in agricultural instry is not simply to make the traditional offline process online, but to empower and enhance the efficiency of the instry
SUN Wei, CEO of China rural power grid, interprets the methodology of blockchain
as a representative enterprise of B2B e-commerce of agricultural procts in China, the core transaction category of China rural power grid is silk, with an annual transaction volume of several billion yuan. However, the upstream proction monomer of silk instry is small and scattered, the instrial chain is long and inefficient, the transaction cost is too high, and the buyer and seller will often break the contract artificially
China rural power grid blockchain + cocoon and silk instry supply chain
through blockchain Distributed Accounting and tamper proof technology, China rural power grid can present the information of buyers and sellers to upstream and downstream parties and relevant third parties openly and transparently, and the defaulter will be abandoned by the instry, thus establishing a positive reputation ecology through mutual chain, and letting good currency drive out bad currency
at present, the agricultural blockchain platform of China rural power grid has achieved success in the first stage, which can not only reshape the trust relationship between all parties, but also significantly improve the transaction efficiency and rece the transaction cost
generally speaking, the instry generally believes that blockchain will be used in the Internet of things, agricultural procts traceability, rural finance and other six fields
1 Internet of things
the combination of Internet of things and blockchain will enable Internet of things devices to achieve self-management and maintenance, saving the high maintenance cost of cloud control as the center
2 big data
blockchain technology has point-to-point trust, and tamperable records will become an excellent way to solve the problem of data authenticity and effectiveness
3 quality and safety traceability
the agricultural procts traceability system based on blockchain technology, all data can not be tampered with, making the information more transparent, true and accurate
4 rural finance
the open and tamperable nature of blockchain technology makes it possible for decentralized trust mechanism. When applying for loans, it is no longer dependent on banks, credit reference companies and other intermediary institutions to provide credit certificates. The lending institutions can obtain the corresponding information data of the blockchain
5 agricultural insurance
blockchain technology can improve the protection of agricultural intellectual property rights and the transaction of agricultural property rights, and greatly simplify the process of agricultural insurance. At the same time, smart contract will also make agricultural insurance payment more intelligent
6 supply chain
e to the openness and transparency of data among all parties, a complete and smooth information flow is formed in the whole supply chain, which helps to improve the efficiency of supply chain management. The characteristics of non tampering data and transaction traceability can also eliminate the problem of fake and inferior procts in the process of proct circulation in the supply chain
in fact, some powerful agricultural enterprises have been aware of the opportunities of blockchain and have made an early layout to explore.