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⑴ How to define blockchain and what are the application scenarios of blockchain?

Many people now think that blockchain is a universal technology that can do anything. Make blockchain technology a myth!
Regarding the definition of blockchain technology, American scholar Melanie Swann defined blockchain technology as an open, transparent and decentralized technology in her book "Blockchain: A New Economic Blueprint and Introduction" database.

Definition of Blockchain: Narrow VS Broad

As for the application scenarios of blockchain technology, it is natural to combine the differences between blockchain and other technologies. In terms of system characteristics.

Blockchain technology features include:

Blockchain is a global A database storage system that can be operated collaboratively in various places is different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (a characteristic of centralization). Blockchain believes that anyone with the ability to set up a server can participate. Nuggets from all over the world have deployed their own servers locally and connected to the blockchain network to become a node in this distributed database storage system; once joined, the node enjoys exactly the same rights as all other nodes and obligations (decentralized, distributed characteristics).

At the same time, people who provide services on the blockchain can perform read and write operations on any node in the system. In the end, all nodes around the world will complete the process again and again according to a certain mechanism. Synchronize in sequence to achieve complete consistency of data in all nodes in the blockchain network.

At the beginning of this year, the term blockchain began to enter everyone’s lives. From national leaders to aunts who dance square dances, everyone knows this term. This term is widely known by Bit Brought by coins.

As we all know, the first few dozen bitcoins could only be exchanged for one pizza. At its peak, it was more than 20,000 US dollars each, which has skyrocketed by more than a thousand times, which has also benefited a large number of wealthy people. Currently, there are blockchain The virtual currency generated by technology is gradually entering into everyone's life, and many people have joined the ranks of currency speculation. I often hear people say that if you buy the right currency a hundred times, a bicycle will become a sports car, and one coin will turn a young model. You can imagine how many of them are involved. Attractive.

Since 2008, various games applying blockchain technology have also become popular, such as development games (Network Letts Dog, 360 Block Cat), mining games (NetEase Planet, Virtual Earth, Gongxinbao), these are attracting everyone to join in the name of blockchain, and of course there are some that are really reliable, which requires everyone to identify them carefully.

The three words "blockchain" were completely ignited during the Spring Festival that just passed, and the limelight overshadowed everything. Some people said that this is the arrival of a new era, and the past has become ancient.Of course, some people say that everything is just hype and is ultimately a bubble.

In fact, blockchain technology is not a new concept. It has been applied to many industries, such as electronic signatures, as early as the past two years. Recently, the third-party electronic signature platform eShanbao revealed the latest progress of blockchain applications to NewSeed.

Currently, blockchain technology is mainly used in e-signing products for certificate deposit and certificate issuance. The application scenarios include copyright protection and online signing. , web page forensics, phone recording, email storage of evidence, etc.

Take the rights protection of online works as an example. Since online rights protection generally adopts the method of collecting evidence after the fact, real-time confirmation of rights is not carried out in the process of evidence generation, so the entire confirmation process is difficult. The copyright process is time-consuming, difficult and costly to obtain evidence, and extremely difficult to prove and trace the source. It cannot meet the characteristics of rapid dissemination and large quantity of online works.

eShanbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication and solidifies the information generated during the real-time solidification process. Electronic data, and through the time source service synchronized with the National Time Service Center, online works are stamped with legally valid timestamps to prove that electronic files have not been tampered with in a certain period of time. Blockchain technology can establish point-to-point trust in the network, ensuring that all blockchain nodes can record complete copyright confirmation and transaction records, and can trace their origins, truly realizing anti-repudiation and anti-tampering, and realizing a kind of distribution. trust infrastructure.

Founder and CEO Jin Hongzhou believes that the application of decentralized blockchain technology has greatly improved the efficiency of data storage and certification, and The credibility of the identity of the parties reduces the cost of trust, but it cannot replace the original centralized public key encryption technology. The two should complement each other. Through the combination of the two, it can provide users with real-time and reliable Confirmation plan.

Next, e-Shanbao will also focus on building a smart contract platform based on blockchain technology. Jin Hongzhou said that data storage, Issuing certificates is only a relatively superficial application based on blockchain technology. It is the first step to implement blockchain technology, and the realization of real smart contracts is the second step. "Smart contracts cannot simply be understood as electronic contracts. They refer to a process, from the conclusion of the contract to the confirmation to the final execution." Jin Hongzhou explained.

Through the following limited cases, I hope everyone can understand the actual performance of blockchain technology, thereby stimulating interest in such solutions.

1. Administrative Services

The role and responsibilities of public administration over the centuriesWhat has not changed significantly – or rather, what has changed dramatically is the scale of the data and the specific ways in which public institutions deal with it. Although various digital technologies already exist to help collect and process data, issues such as anonymization, portability, and the immutability of large amounts of data remain unresolved.

Sasha Ivanov, founder, entrepreneur and CEO of Waves Platform and Vostok projects, said, "What the public administration currently lacks is a more convenient user experience (UX) for data use. To improve the user experience , we should introduce some kind of layer to it that acts as a trusted public environment that is transparent and can store data anonymously and immutably."

Governments are working on this by launching the U.S. Federal agency and enterprise-level initiatives such as the Federal Blockchain Initiative are gradually confronting the existence of such problems. The United States held its first federal government blockchain forum in July 2017, and the U.S. General Services Administration currently has more than 200 related use case repositories. Ivanov explained, “Distributed systems can really help us build such a reliable environment, improve our big data work, and even integrate all emerging technologies – including artificial intelligence and the Internet of Things. In fact, , whenever we face any kind of technology, it always embodies the sum of certain other technologies."

Now, the system supported by the blockchain can actually work - this This view has been unanimously recognized by all experts and has become the most important theoretical basis. In other words, what we need to do next is create more production-ready solutions.

2. Payment services

The government needs to process transactions, many of which involve the exchange of funds with citizens. Blockchain technology has huge potential application value in reducing the cost of fund transfers - including using new blockchain-based cryptocurrencies as intermediate transaction carriers, or using blockchain as a means of fund transfer, etc. Once a perfect solution is discovered, the business opportunities will be endless - especially for those who need to conduct frequent cross-border or Internet transactions.

The Jasper project was developed by the Bank of Canada to help it further think about how central banks and other financial institutions should implement payment operations between different banks based on distributed ledgers. The Bank of Canada has also developed its own digital currency variant, “CAD Coin,” to test the feasibility of using a national currency on top of the blockchain.

This project brings to an interesting conclusion that we should say no to proof-of-work public chain systems. In a paper titled "Project Jasper: Is a Distributed Bulk Payment System Feasible?" the author observes that "proof-of-work systems are not suitable for such large transaction processing systems because they assume that all transactions in the systemYidu requires openness and observability to a certain extent. ”

3. Digitization and Intellectual Property

The government is responsible for maintaining copyright records and databases. These records prove the ownership of intellectual property. A blockchain-based system allows various artists, Performers and writers can time-stamp their works and theoretically detect copyright infringements and even retain permanent records of rights. In fact, many governments have taken important exploratory steps in this direction.

Iran recently announced that it will deploy this technology. "Iran Financial Tribune" quoted Morteza Mousavian as saying that "the Digital Media Department of the Ministry of Culture has reached an agreement with a blockchain company to jointly design a usable A system for protecting online copyright. "He also added, "Relevant programs will soon be released to users in an easy-to-use manner. ”

This work is still in the early stages of exploration, but it provides corporate customers with the possibility of preserving records through replication technology. From a theoretical level, companies can use blockchain solutions for financial accounting, And discover the errors in real time.

4. Welfare distribution

The government has the responsibility to create a level playing field for citizens. Citizens who are chronically poor or economically disadvantaged certainly Government support and assistance is needed to ensure that they are able to maintain their lives and acquire the capabilities to continue to develop. However, welfare distribution is neither simple nor often straightforward. Problems such as corruption and imposters have been seriously undermining government programs. Various distribution channels.

In China, the National Council of Social Security Fund is conducting early research on how to use blockchain technology to improve the delivery of national benefits to citizens. At the same time, India is also taking action , Andhra Pradesh and Telangana are already using blockchain to support their civilian resource supply systems.

It is said that many companies, including Microsoft, are also considering using the same technology. These solutions, which will touch individual employees and functional roles, are expected to gradually appear in small businesses in the near future.

5. Tendering activities

In order to build public infrastructure or provide For related services, governments hope to achieve economies of scale and competitive gains through tendering as much as possible. However, the tendering process is often not fair or transparent. Public procurement has long been a major scene of rampant corruption around the world. Transparency International pointed out, “Many governments will award project contracts to one supplier in the absence of fair competition. This allows companies with greater political resources to unfairly outcompete competitors; or companies in the same industry negotiate bids in advance to ensure that each company gets a piece of the tender pie. This will significantly increase the cost of delivering services to the publicBen - We found that corruption issues can increase project costs by 50%. ”

So, how can blockchain technology solve the bidding problem? According to Ivanov, “Unlike decentralized centralized systems, independent ledgers powered by blockchain will be able to improve bidding or Transparency of any other financial processes that need to be tracked. The intervention of blockchain technology will help track the use of funds and ensure that they are paid out as expected and within the allowed time. ”

Currently, Japan’s Ministry of Interior and Communications has announced a blockchain-based bidding system, which means that in industries with serious collusion problems, small and medium-sized enterprises are expected to usher in a more transparent bidding method and Brighter development prospects.

Although quite a few of the cases mentioned previously are far from finalized, they do provide many possibilities for enterprises and governments. Of course, the key lies in implementation; and we All this should also be viewed with optimism, that is, although blockchain technology is often misunderstood by people, it is and will eventually find a direction in which it can exert its own energy!

In layman's terms, blockchain is like There are more than a dozen beacon towers on the Great Wall. If an enemy comes at one place, they will send out smoke. The other beacon towers will know about it and enter a defensive state together. In technical language, it is a distributed ledger, and each node will keep accounts separately. The failure of a single node will not affect the entire network.

How is this distributed network different from the distributed servers of Google Network? Google Network and others The distributed servers still belong to the Google network and are controlled by their central scheduling algorithm. The distributed nodes in the blockchain do not know each other and have no legal affiliation. If you want to go offline and shut down That's fine, but because of the currency rewards, there will always be people who will start up as new nodes to support this network.

After the popular and technical explanation, I hope You already understand. Then the first application scenario is finance. I put the money in Alipay. If Alipay doesn't recognize it one day, there is nothing you can do. But on the blockchain, it is useless if a node does not recognize it. Because other nodes still have my records. The second one is the contract. Nowadays, contracts are signed on paper, which is easy to forge, but it cannot be forged if it is placed on the blockchain.

There are more application scenarios. It is recommended to check the top 100 digital Huobi online to understand the corresponding projects behind them and become a blockchain expert.

Area Blockchain technology was first used in Bitcoin. Blockchain provides a reliable and credible means of organizing data for cross-subject business scenarios. JD.com is essentially a supply chain company, and blockchain technology will first be used in the supply chain in many scenarios.

Blockchain is a decentralized technology. At present, all InternetBlockchain can be applied to all products that can be covered.

The most popular application industry at present is the financial industry.

An application that has been implemented is product traceability. Alibaba and JD.com are already using blockchain technology to fully trace the origin of some of the products they sell. Consumers can trace the origin of the purchased products. There are also many blockchain applications in the digital advertising industry. Since digital advertising traffic fraud causes losses of tens of billions of dollars every year, there are already blockchain application projects based on digital advertising, such as DCAD, which is based on blockchain. The digital advertising application of blockchain technology mainly solves the problem of traffic fraud

In the future, as the application of blockchain technology becomes more mature, it will be applied in many industries, creating a new ecosystem based on technological trust. Mode

The characteristics of blockchain are distributed accounting and decentralization, but the ultimate goal is to make people get along more equally. Technology is meaningful only when it serves human values, and technology that meets human value needs will develop. Therefore, blockchain is in line with human pursuit of freedom and equality, so its trend to become mainstream is unstoppable.

Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free and global social platform. Due to decentralization, your chat communication information is peer-to-peer and cannot be viewed by others. In other words, your every word and deed will no longer be recorded and reviewed at any time like it is now on WeChat, QQ, and Facebook, freeing you from the trouble of surveillance.

In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can be completed online and confirmed at multiple nodes, making it difficult (almost impossible) to delete.

At present, blockchain is still in its infancy, and the technology is not mature enough, but it is also a better time to enter.

What is blockchain

If you use non-technical terms to explain blockchain, blockchain is a place where data is stored. However, the data stored in the blockchain is safe and reliable and does not need to be managed by anyone, so In the Internet, a place where data and information are exploding, having such a place would be like a magical treasure.

What can the blockchain do?

If you ask what the blockchain can do, it is better to say what applications require the use of the blockchain. As mentioned earlier, blockchain is a safe place, so wherever data needs to be protected securely on the Internet, blockchain technology needs to be used. For example:

Because the use of blockchain technology can better protect the data of policyholders, in today’s Internet, data is value and wealth, so value protection and value transmission are the future development directions of the Internet. And blockchain technology can really do just that.

If there are any deficiencies, you are welcome to comment and correct me.

In a narrow sense, blockchain is a chain data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-forgeable. Ledger.

The two parties involved in the transaction do not need to know who the other party is, nor do they need a third party for trust endorsement. They only need to trust a common algorithm to establish mutual trust and conduct direct transactions.

Its characteristics are trustlessness and decentralization. The destruction of each node's ledger has no impact on the entire blockchain. The blockchain runs point-to-point payments without a center that may cheat, and the security is greatly improved. Improved, the entire transaction network has changed from a star structure to a point-to-point P2P structure.

In the future, blockchain will be used in many fields and will have a great impact on human life. . It can be widely used in fields ranging from digital currency to securities and financial contracts, medical care, games, artificial intelligence, smart contracts, Internet of Things, e-commerce, file storage and other fields.

1. Cloud storage

This is the statistics of current cloud storage on the Internet. In terms of volume, Google has the largest volume, which is 8,000PB. So what if we share the idle data on the Internet?

Starlight Cloud builds a blockchain data computing and storage lake through Starlight Chain, with a total storage capacity of 15,000P (approximately 15,728.64 billion G) in the future. This will be more than 10 times that of Alibaba Cloud's 1500PB! It is also more than four times the size of the Taizhou Storage Center, the largest storage lake in the world after expansion.

2. Medical aspects

Using blockchain technology to save personal medical records also retains personal medical historical data, which can be used when seeing a doctor or planning for your own health in the future. Historical data can be called directly. These data are highly private, and the use of blockchain technology also helps protect patient privacy.

⑵ After various places have banned Bitcoin and Ethereum "mining", NFT blockchain will be the next step

Although China bans cryptocurrency transactions and “mining”, but the exploration of blockchain technology continues. At the just-concluded World Artificial Intelligence Conference, Da Hongfei, founder and CEO of Distribution Technology, said in an interview with a reporter from China Business News that "the manageability of blockchain" is a recent focus. The current scale and growth rate of the global public chain market is much higher than that of the alliance chain business. However, public chains have many limitations, such as illegal crimes, hacker theft, network risks, regulatory obstruction, etc., and cause huge irreparable losses. Therefore, how to increase the manageability of blockchain will be an important issue for blockchain to become mainstream.

It can be said that the currency circle has been very uneven in the past two months. On May 2On the 1st, the Financial Stability and Development Committee of the State Council issued a document stating “Crack down on Bitcoin mining and trading activities.” On May 25, the Inner Mongolia Development and Reform Commission issued eight measures (draft for comments) to crack down on the “mining” of virtual currencies. On June 9, the Qinghai Provincial Department of Industry and Information Technology issued the “About Mining” of Virtual Currencies. "Notice on Cleaning Up and Rectifying the Project", and cleaning up and rectifying the relevant virtual currency mining/mining activities.

On June 18, the Sichuan Provincial Development and Reform Commission issued the "Notice of the Energy Bureau on Cleaning up and Shutting Down Virtual Currency "Mining" Projects. For virtual currency mining/mining, the relevant power in Sichuan Enterprises need to complete the screening, cleaning and shutdown work before June 20.

#BTC[超话]# #digital currency# #欧易OKEx#

⑶ How to obtain the blockchain key file

1. A method for retrieving a blockchain system key, which is characterized by including the following steps: Step 1. Create an original key pair; Step 2. Calculate a business key pair based on the original key pair; Step 3. Calculate a business key pair based on the business key pair. The key pair calculates the address and account number; Step 4. When the business key is lost, perform Step 2. 2. The method for retrieving the blockchain system key according to claim 1, characterized in that the original key pair Includes original private key and original public key. 3. The method for retrieving the blockchain system key according to claim 2, characterized in that in step 1, creating an original key pair includes the following steps: Step 11. Generate an original seed using a random number. ; Step 12: Generate an original key pair from the original seed through an asymmetric encryption algorithm. The original key pair includes an original private key and an original public key. 4. The blockchain system key retrieval method according to claim 1, characterized in that in step 2, the business key pair includes a business private key and a business public key. 5. The method for retrieving the blockchain system key according to claim 4, characterized in that in step 2, specifically, a business seed is generated according to the seed production data, and a business key is generated according to the business seed. Yes, it specifically includes the following steps: Step 21, use the original private key as the encryption key, perform a seed generation operation on the seed production data, and obtain a unique ciphertext as the business seed; Step 22, use the business seed The non-pair encryption algorithm generates a business key pair, which includes a business private key and a business public key. 6. The blockchain system key retrieval method according to claim 5, characterized in that in step 21, the seed production data includes the original public key or any other selected data. 7. The method for retrieving the blockchain system key according to claim 5, characterized in that in the step 21, the seed generation operation includes an hmac encryption algorithm operation, a salted hash encryption algorithm operation, Symmetric encryption algorithm operation or asymmetric encryption algorithm operation. 8. Retrieval of the blockchain system key according to claim 3 or 5The method is characterized in that the asymmetric encryption algorithm includes any one of rsa algorithm, ecc algorithm, ecdsa algorithm, sm2 algorithm and sm9 algorithm. 9. The method for retrieving the blockchain system key according to claim 5, characterized in that if the unique ciphertext is not a hash value, then a hash operation is performed on the ciphertext to obtain The hash value of the ciphertext is used as the service seed; if the ciphertext is a hash value, it can be directly used as the service seed, or the hash operation can be performed again or multiple times, and the obtained hash value is used as the service seed. 10. The method for retrieving the blockchain system key according to claim 7, characterized in that the symmetric encryption algorithm includes des algorithm, 3des algorithm, rc2 algorithm, rc4 algorithm, rc5 algorithm, aes algorithm, Any one of the sm1 algorithm, sm4 algorithm, sm7 algorithm and zuc algorithm.

⑷What are the applications of blockchain technology?

Developing Ethereum Cat based on Ethereum, this is not considered an application, it is a bit interesting, and there is also NetEase Planet. For traceability, I have snapped up the Orange Chain made by China Enterprise Tongbao Blockchain, which is used for blockchain traceability records on Orange.

⑸ In which cities are digital currencies being trialled and why are these cities chosen?

In early 2014, the People’s Bank of China established a special research group on legal digital currencies to demonstrate the feasibility of the central bank’s issuance of legal digital currencies. sex. On January 29, 2017, the central bank officially established the Digital Currency Research Institute. After successfully developing a legal digital currency prototype, the Central Bank Digital Currency Research Institute attempted to deploy institutions in multiple locations across the country and realize financial development technology research results through integration with R&D institutions and industries. In 2018, the Central Bank’s Digital Currency Research Institute settled in Nanjing and Shenzhen. In 2019, the central bank’s digital currency publicly announced that it would be piloted in Shenzhen, Suzhou, Chengdu, and Xiongan.

01

Shenzhen has supported digital currency research since 2016.

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On October 6, 2017, the Xiongan New Area Management Committee held a special meeting to study the big data management system and mechanism and "digital The basic idea of ​​​​the construction of "Xiongan" and fully promote the construction of "Digital Xiongan". Not long after the meeting was held, various companies took notice and worked hard to build Xiongan New Area into a "testing ground" for innovation.

On October 14, 2017, Peng Yijie, vice president of Ant Financial and partner of Alibaba Group, and his delegation went to Xiongan New Area to report on the blockchain construction plan. Peng Yijie’s evaluation of Xiongan New Area was: building blocks The best soil for the chain. On November 8 of the same year, Xiongan New Area held a docking meeting with Alibaba GroupAt the meeting, Alibaba and Ant Financial will undertake the construction of the digital Xiongan blockchain infrastructure platform and are expected to be the first to test the waters in the rental scenario.

On November 23, 2017, Tencent and Xiongan New District signed a financial technology strategic cooperation agreement. The two parties established the Tencent (Xiongan) Financial Technology Laboratory to pilot a big data risk control system in the new area, based on Tencent Cloud’s blockchain services and other financial black technologies.

On April 21, 2018, Hebei Xiongan New Area released the "Hebei Xiongan New Area Planning Outline" proposing to develop high-end high-tech industries and advance the development and testing of blockchain, terahertz, cognitive computing and other technologies. . Blockchain was written into the "Hebei Xiong'an New Area Planning Outline". A technology with far-reaching influence and far-reaching influence began to grow together with a rising digital city that shoulders a historical mission.

On June 8, 2018, China Academy of Information and Communications Technology and Xiongan New Area signed a strategic cooperation agreement. The two parties will build a scientific research base in the field of information and communications in Xiongan New Area and provide development strategic planning, standards and policies for the construction of the new area. Formulate and other comprehensive support services, focusing on building a comprehensive service platform for Beijing-Tianjin-Hebei high-tech innovation and mass entrepreneurship and innovation demonstration base in the fields of 5G, industrial Internet, artificial intelligence, blockchain, network security, military-civilian integration, and Internet of Vehicles to promote industrial innovation develop.

On June 28, 2018, Xiongan New Area and 360 Group officially signed a strategic cooperation. 360 Group will give full play to its advantages in network security, big data, artificial intelligence, blockchain and other technical fields, Provide comprehensive network security services to build a safe and reliable "Digital Xiongan".

On July 23, 2018, China Xiongan Group signed a memorandum of understanding with the blockchain technology company ConsenSys. ConsenSys founder Joseph Lubin and others proposed to China Xiongan Group on how to use blockchain technology. Suggestions, hoping to apply its knowledge and experience in the blockchain ecosystem to Xiongan’s projects and support Xiongan’s innovative development model.

On December 21, 2018, Bank of Communications Hebei Xiongan Branch was unveiled. The branch will rely on the professional R&D team and strong R&D strength of the head office, and rely on financial business processing, artificial intelligence, blockchain, big data, cloud computing and other financial technology platforms to continuously innovate financial business models and contribute to building a green and smart Xiongan. , Digital Xiongan will make greater contributions.

On May 8, 2019, ICBC Technology Co., Ltd., a wholly-owned subsidiary of the Industrial and Commercial Bank of China, opened in Xiongan New Area and became the headquarters of a banking financial technology company located in Xiongan New Area. ICBC Technology and the Xiongan New Area Administrative Committee signed the "Financial Technology Cooperation Memorandum". The Xiongan New Area Administrative Committee officially launched the operation of the Xiongan relocation and resettlement fund management blockchain platform. It will apply ICBC's blockchain technology to realize expropriation and relocation. Full-process on-chain management of original file migration and penetrating fund allocation.

On December 25, 2019, Everbright Bank and China Xiongan Group Digital City Company jointly built a "Digital Financial Technology Laboratory" in Xiongan New Area, which will be based on the strategic needs and needs of Xiongan New Area.Guided by information construction, we will gradually create a highland for blockchain commercial application research, technological innovation and talent training.

On March 31, 2020, the Xiongan Blockchain Laboratory was officially unveiled. The Xiongan Blockchain Laboratory has three major goals: to become a new highland for blockchain research and application, and to become an open Cutting-edge innovation base, exploring new models of laboratory economy. On the third anniversary of the establishment of Xiongan New Area, the Xiongan Blockchain Laboratory has special significance. This marks that the Xiongan New Area’s blockchain innovation practice has entered the stage of organization and large-scale implementation, marking that the Xiongan New Area’s digital The simultaneous planning and construction of urban and physical cities has opened a new chapter.

Xiong’an New District, a digital urban forest cultivated from seed, is naturally suitable for the central bank’s digital currency pilot. Xiongan on the top, Shenzhen on the bottom, Chengdu on the left, and Suzhou on the right. We look forward to piloting the central bank’s digital currency in these four places and growing flowers that will spread around the world.

⑹ Blockchain technology joins the army of promoting agriculture through science and technology. How does blockchain technology help agriculture?

Blockchain technology

< p>Blockchain application scenarios cover agricultural product logistics, traceability, supply chain management and other fields. Moreover, the original market size of these traditional agricultural products is large enough.

Blockchain technology selects the best one from all agricultural developments, and at the same time expands the best development methods and farming methods to every individual economy and major companies engaged in agriculture. economic groups. And by imitating the rapid development of agriculture, we can promote the purpose of promoting agriculture, achieve scientific and technological development of agriculture, and achieve rapid economic growth.

This is how blockchain technology helps farmers.

⑺ Blockchain Graduation Project Proposal

Background of the project research:

With the development of modern technology and information industry, at this stage, the fourth The second industrial revolution is beginning to take shape, and the world is about to enter a technological era centered on new technologies such as the Internet and artificial intelligence. At the same time, blockchain technology has emerged as the times require and has become a hot topic of concern to many international governments and industries. Blockchain technology has been regarded as the core technology with the greatest potential to trigger the fifth round of disruptive revolution after steam engines, electricity, information and Internet technology. In the past 10 years, with the strong support of the government and policies, the development situation of my country's philanthropy has been relatively optimistic. However, as the scale of charity continues to develop and expand, my country's public welfare undertakings have gradually revealed some shortcomings. The biggest problems existing in traditional public welfare undertakings are insufficient credibility, imperfect internal management of charitable organizations, and high costs. However, many Internet public welfare service companies are currently actively using the new technology of blockchain to solve this problem. Blockchain technology has the characteristics of decentralization, information traceability and non-tampering, openness and transparency, and smart contracts. It can make up for the shortcomings of traditional public welfare undertakings such as opaque information and low management efficiency. Blockchain technology will enter public welfare undertakings and will Bring new development opportunities to the charity industry.

The main content of the researchContent: This topic mainly includes the following three aspects:

[if !supportLists] 1. [endif] Problems that will arise when combining blockchain technology with public welfare and how to solve them.

[if !supportLists] 2. [endif] Make a public welfare query webpage based on blockchain technology

[if !supportLists] 3. [endif] The query system Application issues and explanations

Purpose of the research:

As the scale of my country’s public welfare continues to develop and expand, our shortcomings have also been exposed, including lack of credibility, and charitable organizations There is a lack of management, and the use of blockchain technology can solve this problem. This technology will track and store data and behaviors throughout the donation process, realize the complete disclosure of the public welfare chain, enable donors to effectively supervise, avoid shortcomings such as low efficiency and clear fund flows, control risks for public welfare projects, and improve Credibility and transparency of public welfare projects promote the development and progress of public welfare projects and enhance trust between people. According to the attributes and characteristics of the blockchain system, public welfare enterprises can implement full-cycle tracking, evidence storage and auditing of data and behaviors in the public welfare process, so that all parties involved in public welfare projects can conduct full-process tracking and effective supervision of the project, avoiding Due to the shortcomings of artificially reducing efficiency in public welfare, it provides a rational method for public welfare projects to control risks and judge effects, improve the transparency of public welfare undertakings, and promote the development of public welfare.

Significance of the project research: This project intends to develop an open and transparent system for tracking public welfare donations based on blockchain technology and combined with the actual development of public welfare undertakings in my country. Through in-depth analysis of blockchain technology and charity business, we found that blockchain technology has natural advantages in solving the problem of public welfare transparency. Blockchain technology can be understood as a distributed accounting method that can record all transaction information and ensure that it cannot be tampered with. This determines that wherever justice, fairness, and integrity are required, blockchain has great technology. Room to play. At the same time, the addition of smart contracts directly solves the business problem of earmarked funds.

Eventually, trust between citizens will be enhanced, donation channels will be accelerated, and the development of social donations will be promoted

2. Literature review (current status and development of relevant research at home and abroad Trend)

[if !supportLists] (1) [endif] Current status of foreign blockchain-related industries

China and Europe are gradually occupying the world in blockchain industry policies, and the EU is In February 2018, the European Blockchain Observation Forum was established.Main responsibilities include: policy determination, industry-university-research linkage, cross-border BaaS

(Blockchain as a Service) service construction, standard open source formulation, etc. The group invested 5 million euros in Horizon2020 as a blockchain research and development fund ( Before December 19, 2018), it is expected that investment in blockchain will reach 340 million euros within three years (2018-2020). In the United States, due to different policies among states, although blockchain is still a craze among American start-ups, the promotion of industrial policy has been slow. The Middle East, led by Di Pai, is leading the trend of blockchain. The government is taking the lead and enterprises are cooperating to explore new technology applications of blockchain. Japan and South Korea are also relatively active in the Asia-Pacific region. Japan is dominated by NTT and the government provides support. South Korea uses finance as an entry point to explore blockchain applications. Isism is also a constant threat to all areas of Chinese society. A comprehensive review of the development status of new media culture in major foreign developed countries, summarizing experiences, and drawing lessons have certain implications for the development of new media culture in China.

[if !supportLists] (2) [endif] Current status of domestic new media research

The State Council of China issued the "Thirteenth Five-Year Plan for National Informatization", Blockchain New technologies such as big data, artificial intelligence, and machine deep learning have become the focus of the country’s layout. The People's Bank of China issued the "Thirteenth Five-Year Plan for the Development of Information Technology in China's Financial Industry", which clearly proposed to actively promote research on the application of new technologies such as blockchain and artificial intelligence, and organize pilot projects for national digital currencies. In October 2017, the Ministry of Industry and Information Technology released the "White Paper on China's Blockchain Technology and Application Development", which is the first official guidance document for blockchain.

Governments across the country, especially in coastal areas, have established blockchain experimental sites and research institutes. At present, the governments of Shenzhen, Hangzhou, Guangzhou, Guiyang and other places are actively establishing blockchain development zones and providing special support policies. China Guangzhou officially released 10 Guangzhou blockchain strategies in December 2017 to create a blockchain enterprise technology innovation zone in Huangpu District and Development Zone. In March 2018, the Shenzhen Municipal Economic, Trade and Information Commission issued the "Notice of the Municipal Economic, Trade and Information Commission on Organizing and Implementing the Second Batch of Support Plan for the New Generation Information Technology and Information Security Transformation of Shenzhen's Strategic Emerging Industries in 2018". The district Blockchain is on the list of support directions. This is the fifth local government in China to introduce support policies for blockchain after Guangzhou, Guiyang, and Gehangzhou.

(3) Current status of blockchain in the open source field

Hyperledger

HyperledgerHyperledger is an open source project launched by the Linux Foundation in 2015 to promote blockchain digital technology and transaction verification. It has attracted investors including IBM, Intel, Fujitsu, UPS, Cisco, Huawei, Redhat, Oracle, Samsung, and Tencent Cloud. , Internet finance and many other companies have participated, and there are currently more than 200 member units. Bran Behlendorf, founder of the Aache Foundation, serves as the executive director of the ledger project.

The goal of the Hyperledger project is to allow members to work together to build an open platform to meet user cases from many different industries and simplify business processes. Process Ledger has multiple blockchain platform projects, including the Fabric project contributed by BIM, the Sawtooth project contributed by Intel, and Iroha, Burrow, Indy, etc.

The development status of blockchain in the field of standards

ITU-T

ITU-T (International Telecommunication Union Standardization Organization) from 2016 to 2017 At the beginning of the year, SG16 (Study Group), SG17 and SG20 respectively launched research on the overall needs and security of distributed ledgers to attract applications in the Internet of Things. Established three focus groups (Focus Group on Distributed Ledger (FG DLT), Focus Group on Data Processing and Management (FG DPM), and Focus Group on Fiat Digital Currency (FG DFC)), focusing on blockchain and distributed ledger respectively. Technology application and service research, establishing a trustworthy Internet of Things and smart city data management framework based on blockchain, and carrying out standardization work on blockchain applications based on digital currency. Huawei serves as the chairman of the Architecture Group of the Focus Group on Distributed Ledger (FG DLT) and the Blockchain Group of the Focus Group on Data Processing and Management (FGDPM).

Two committees of CCSA (China Communications Standards Association) have established subgroups and projects respectively:

CCSA TC10 (Internet of Things Technical Working Committee) Established in October 2017, the Internet of Things Blockchain Subgroup: Responsible for the application research and standardization of blockchain technology in the Internet of Things and its covered areas such as smart cities, Internet of Vehicles, edge computing, Internet of Things big data, Internet of Things industry applications, logistics and intelligent manufacturing, and is led by China China Unicom technical experts serve as team leaders, and Huawei technical experts serve as deputy team leaders.

The Blockchain and Big Data Working Group under CCSA TC1 (Internet and Application Technology Working Committee) completed two blockchain industry standards: "Blockchain: Part 1 Overall Technical Requirements for Blockchain ” and “Blockchain: Part 2 Evaluation Indicators and Evaluation Methods”, in which Huawei actively participated.

JPEG

During the 78th JPEG Conference in February 2018, the JPEG Committee organized a special meeting on blockchain and distributed ledger technology and their impact on the JPEG standard. Taking into account the potential impact of technologies such as blockchain and distributed ledgers on future multimedia, the committee decided to establish an ad hoc group to explore use cases and standardization needs related to blockchain technology in a multimedia environment, with a focus on imaging and multimedia applications. standardization work.

IETF

The "Decentralized Internet Infrastructure ProposedRG

(Research Group) was established at the IETF99 meeting in June 2017, planning to study the blockchain architecture. and corresponding standards. In 2018, IETF will likely pay more attention to the implementation and development of blockchain interconnection standards on blockchain.



3. Proposed research methods (programs, technical routes, etc.) and feasibility studies

This topic mainly studies the application of blockchain technology to charitable donations. Research methods adopted:

1. Use literature methods to collect relevant theories, use information retrieval, screening and other methods to collect literature materials and related theories, understand the current situation of blockchain technology, and master blockchain decentralization technology.
< br /> 2. Use a method that combines theory and practice to combine the technology with public welfare. Complete the improvement of the system.

3. Use the method of comparative analysis to learn from two domestic and foreign Discuss the current development status of new media operations, as well as existing problems in the development of new media operation models in my country, and look forward to the development prospects of this technology field.

Feasibility demonstration:

1. Technical feasibility, the research goals involved in this topic, already have considerable theoretical foundations at home and abroad. Through literature survey, we can learn about actual, reliable and useful information data, and the actual requirements are not difficult.

2. Economic feasibility. The research on this topic can be accessed through the Internet and libraries. It is convenient and feasible and does not require a lot of economic consumption. Therefore, from an economic point of view, it is completely feasible.

3. Operational feasibility. This topic requires the combination of blockchain technology and public welfare, especially the tracing of applications in these aspects. A comprehensive analysis of the system of the graduation project on this topic can be achieved through the review of existing literature. Study and study existing information documents, use the data collected by yourself to organize and analyze, apply what you have learned, and completeComplete this assignment completely. From an operability point of view, it is completely feasible.

4. Expected results (or expected results)

1. Through research on the data, clarify the relevant concepts of blockchain technology, skillfully use dapp, and create a web page.

2. Through distributed applications, creating a system that allows the public to quickly browse and understand the public welfare process will increase convenience for the further development of my country's public welfare undertakings.

3. I hope that I can continue to learn and make progress from the process of writing this paper. Being able to master the relevant knowledge of blockchain will be helpful to your future career.

⑻ Daily Blockchain News

The Central Committee of the Communist Party of China and the State Council issued the "National Standardization Development Outline" document mentioning strengthening standard research in the blockchain field

According to Xinhua News Agency reported today that recently, the Central Committee of the Communist Party of China and the State Council issued the "National Standardization Development Outline" (hereinafter referred to as the "Outline") and issued a notice requiring all regions and departments to conscientiously implement it based on actual conditions. The "Outline" points out that research on standards in key technical fields should be strengthened. Carry out standardization research in fields such as artificial intelligence, quantum information, and biotechnology. In technological fields with broad application prospects such as the integration of industrialization and informatization, new generation information technology, big data, blockchain, health, new energy, and new materials, we will simultaneously deploy technology research and development, standard development, and industrial promotion to accelerate the pace of industrialization of new technologies. . Research and formulate key technical standards in the fields of smart ships, high-speed rail, new energy vehicles, intelligent connected cars, and robots to promote industrial change. Timely formulate and improve technical safety-related standards in biomedical research, molecular breeding, driverless driving and other fields, and improve the level of safety risk management in technical fields.

Huawei’s chief consultant for financial digital transformation: 5G news and digital renminbi will change payment methods and forms

According to mobile payment network, Zhou Tao, chief consultant of Huawei's financial digital transformation, recently gave a speech at the "10th China Payment and Clearing Forum" and said: There are many technologies that will be used in the payment and clearing field. Huawei believes that there are five key technologies that will be used in the payment and clearing field, and Change the way and form of payment, including 5G messaging; digital RMB; Hongmeng system; cloud, big data, AI; regulatory technology.

Beijing will launch a series of pilot activities for digital renminbi

According to the Beijing Daily, Beijing will launch the "'Beijing Lottery' benefit" in the near future "People's Livelihood Digital Carnival" digital RMB pilot event. This event will focus on transportation scenarios and support consumers in Beijing to enjoy digital RMB payment discounts through coupon issuance. The first phase of “Beijing Lottery Pass” was launchedThe activity supports consumers to receive digital RMB bus tickets and experience traveling by bus/subway for 1 cent.

The People's Bank of China will continue to steadily and orderly promote the construction of key application scenarios to ensure that relevant people during the Beijing Winter Olympics can obtain safe, convenient, stable and efficient digital renminbi services; at the same time, around the "'Beijing Lottery'" With the theme of "Benefiting People's Livelihood", we will explore the launch of more pilot activities in the fields of living payment, communication services, travel and parking, etc., so that consumers in Beijing can enjoy more digital RMB "Beijing Lottery".

Vice President of the Bank of China Research Institute: Digital Euro may lead to the substitution of other countries’ currencies

Zhong Hong, Vice President of the Bank of China Research Institute Ma Tianjiao, a doctoral candidate at the School of Economics at Nankai University, wrote an article "The Development Prospects and Challenges of the Digital Euro" in the 19th issue of "China Foreign Exchange" in 2021. The article pointed out that the digital euro may bring three challenges: First, privacy protection and restriction of illegal financial activities. It is difficult to find a balance between them. Secondly, there are large differences in technical knowledge, infrastructure, legal environment and preferences within the euro area. Thirdly, it has put forward new requirements for the financial regulatory system. In addition, the digital euro will have four potential impacts: Firstly, Increase the risk of "digital runs" on commercial banks. Second, the emergence of the digital euro may lead to the substitution of other countries' currencies. Third, it will change the monetary policy transmission mechanism and improve the efficiency of currency injection. Fourth, it will be difficult to shake the hegemony of the US dollar in the short term, which will intensify competition among international currencies in the long term. .

McKinsey: CBDC and stablecoins may coexist in some form

According to news on October 11, consulting firm McKinsey released its annual "Global Payments Report", which elaborated on stablecoins and stablecoins. The development of CBDC. The report points out that the co-evolution of stablecoins and CBDC will have a direct impact on society, and the two types of currencies may coexist in some form.

As private companies and monetary authorities begin to issue stable cryptocurrencies in a more mainstream manner, people's thinking about cryptocurrencies is changing from a potential store of value to a financial transaction tool. McKinsey pointed out that in this development process, governments (such as the People’s Bank of China exerting greater influence through direct control of monetary policy), private institutions (such as e-commerce or social media giants in the United States may use stablecoins to perform some user transactions) or industries ( For example, stablecoins based on user loyalty) will all play a certain role.

U.S. SEC Commissioner: True decentralized projects pose challenges to encryption regulation

U.S. Treasury Secretary: The U.S. breaching the debt ceiling may lead to an economic recession

According to news on October 10, U.S. Treasury Secretary Yellen saidsaid that the U.S.'s breach of the debt ceiling could lead to an economic recession. Congress is expected to approve the U.S.'s adoption of the world's lowest tax proposal.

Swiss non-profit think tank 2B4CH launched the "Federal Popular Initiative" and proposed that the central bank hold BTC as a currency reserve asset

October 10 , Adam Back, CEO of blockchain technology company Blockstream, retweeted a tweet from Swiss non-profit think tank 2B4CH. According to the tweet, 2B4CH is launching a "Federal Popular Initiative", proposing that in addition to using gold as a currency reserve asset, the central bank will also add BTC as a local currency reserve asset. According to relevant content, Article 99, paragraph 3, of the Swiss Federal Constitution currently stipulates that part of Switzerland’s monetary reserve assets should be held in the form of gold. The proposed new proposal hopes to adjust this provision to “Swiss monetary reserve assets.” Some should be held in gold and Bitcoin."

Australian Crypto Fund CEO: It is inevitable for super funds and the financial advisory industry to enter the crypto field

News on October 11, Australia Cryptocurrency fund Monochrome CEO Jeff Yew predicts that super funds and financial advisers will invest heavily in the crypto industry, but only if more needs to be done to educate investors and better regulate emerging asset classes in the world of digital assets. , there is too much information, there is also a lot of misinformation, and there is a need to bridge the knowledge gap between the traditional financial world and the emerging digital asset field. In the future, it is inevitable that the super and financial consulting industries will enter the crypto field.

The Block founder said he would be very careful about the "passive income" promised by NFTs

The Block founder Mike Dudas tweeted today He posted: "I will be very careful about NFT's promise of passive income by holding NFT. It feels like giving you 10 bananas as a reward every day. NFT looks a lot like securities. If the market price is affected by dividend support (which appears to be the case in most cases), then there are substantial regulatory risks."

Newsletter

According to Morgan Creek Union Founder Pompliano revealed,The single-day settlement volume on the BTC chain reached US$31 billion on October 6, setting a record high, which also means that the single-day settlement volume of the BTC network has increased by approximately 40 times since the beginning of 2020.

Data shows that BTC has risen in the short term, breaking through the $56,000 mark, now trading at $56,015.78, with an intraday increase of 1.2%. The market fluctuates greatly, so please be prepared for risks. control.

According to news on October 11, according to the market, the current price of Bitcoin is US$55,748, an increase of approximately 90% since the beginning of 2021. This means that since the beginning of the year, Bitcoin’s return on investment has outperformed the likes of gold, silver, Apple, Microsoft, Facebook, and Tesla.

According to Polkadot Weekly, Kusama’s 11th slot auction will end on October 13.

On October 11, the decentralized futures trading platform Futureswap announced that its V4 version was launched on Arbitrum, the expansion network on the Ethereum Rinkeby test network.

According to news on October 11, the Bank of Japan’s September quarter survey showed that 75.7% of households said they had never heard of central bank digital currency. In March this year At the time of the survey, it was 76.2%.

Recently, Chicago cryptocurrency startup Decasonic announced the launch of a US$20 million initial fund, which will invest in blockchain, digital assets, decentralized finance, and games. , NFT and other fields.

According to Bitcoin.com, the Governor of the Central Bank of Nigeria (CBN) Godwin Emefiele confirmed on Thursday that the country’s upcoming digital currency eNaira will “ Launching in a few days. eNaira will make Nigeria “one of the first countries in Africa to digitize its currency.”