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Exclusive nuclear finance | Nanjing government leads the blockchain without money

Time : 18/08/2021 Author : ydmfu5 Click : + -
        The government's "encirclement and suppression" of digital currency has achieved remarkable results. However, what emerges at the same time with strict supervision is the enthusiastic support of local governments for the development of blockchain technology. Hangzhou blockchain 10 billion fund, Shanghai blockchain innovation industry base, Nanjing blockchain 10 billion fund &hellip& hellip; All regions have seized the initiative of the blockchain industry and laid out the "coin free blockchain". In the 2018 white paper on China's blockchain industry released by the Ministry of industry and information technology, Nanjing ranked seventh in blockchain entrepreneurial activity. However, because the ranking only collects data on private blockchain entrepreneurship, it cannot truly reflect the position of Nanjing in the national blockchain industry.
        If we say that there is a precedent in Hangzhou to launch a 10 billion fund to support blockchain entrepreneurship, Suning bank's "blockchain + domestic letter of credit" is on the same starting line with other financial institutions, and the "electronic license sharing platform based on blockchain technology" built by Nanjing Information Center has left its competitors far behind. This sharing platform is not only a rare real large-scale blockchain application scenario in the whole industry at present, but also the first e-government system built by using blockchain technology on a large scale in China. It is of benchmarking significance at a time when blockchain without money is respected everywhere. As an urban public information service platform organized and built by the Nanjing municipal government and participated by all departments, public enterprises and institutions, and social third-party service institutions, "my Nanjing" mobile app application can enjoy personalized services such as inquiry, payment, and reminder of personal provident fund, social security, violations, driver's license, water and electricity, etc. provided by the government and public service units.
        Its "city channel" section provides city related service information, mainly including transportation services, tourism services, medical services, convenience tips, local weather forecasts, real-time air quality index and other city information services. "My Nanjing" has won many awards, such as the top ten apps in Jiangsu Province and the excellent practical achievements of digital Jiangsu. According to nuclear finance and economics, "my Nanjing" especially adopts the blockchain electronic license sharing platform as the background support system, which not only breaks through the problem of information isolation between different departments of the e-government platform, but also provides citizens with one-stop comprehensive government services after real name authentication on the premise of ensuring information security.
        Huang Jia, an engineer of Nanjing Information Center, told nuclear finance and economics that as the first domestic application of blockchain technology in e-government, the "electronic license sharing platform based on blockchain technology" was completed in September 2017 and put into operation after passing the acceptance. It has become an important technical support platform for the "smart Nanjing" project. It has operated well so far and achieved the expected goals and design requirements. Online public information shows that the bidding announcement of the construction project was issued on December 26, 2016, and Nanjing Zijin digital cloud Information Technology Co., Ltd. won the bid for the project on January 18, 2017. From 2017 to 2018, the blockchain concept is the most popular period.
        In the digital currency foam, a large number of projects dressed in blockchain appeared. Now the spring tide is receding, and the air coin project is running and returning to zero, in a mess; There are only a few blockchain projects that are truly applied. Projects such as Nanjing's "electronic license sharing platform based on blockchain technology" that have been put into practical applications on a large scale are even rarer. In 2016, the State Council issued the "2016 key points for promoting the reform of streamlining administration, delegating power and regulation, and combining optimization of services" (GF [2016] No. 30), requiring the vigorous implementation of "Internet + government services", that is, to create a "one network" of government services, and to implement "one-stop acceptance" and whole process services for enterprises and the masses.
        Its purpose is to break the "information island" and data barriers, realize the interconnection and full sharing of data and information among government departments, and build an efficient service-oriented government. Previously, through government cloud services, smart Nanjing and other construction projects, Nanjing has established a comprehensive population information resource database and legal person database of various government departments that undertake social security and people's service functions, including public security, civil affairs, personnel, labor and social security, health, family planning, education, citizen cards, taxation, disabled persons' Federation, etc. However, the Nanjing Information Office concluded that although the population information and legal person information were partially managed centrally at that time, the centralized system had the risks of information leakage, storage loss and other risks, and the construction and maintenance costs were very high, which could not be verified interactively, and could not realize the real information sharing and co construction of various departments.
        Therefore, how to break the departmental data barrier and realize the real "one network" based on the existing e-government is an urgent problem to be solved in government affairs. It is difficult to collect information comprehensively: due to different functions of various government departments and different centralized management of data, it is difficult to collect all information fundamentally by adopting a centralized system. It is difficult to copy and retrieve information quickly: because the centralized system adopts the way of centralized storage, massive data brings many challenges to data storage, query and retrieval. There are hidden dangers of information security leakage: the centralized system has the risk of system intrusion and data tampering. Although the system security can be strengthened and prevented by various technical means, the risk of system security leakage always exists.
        System stability is difficult: the centralized system has a large amount of data storage and high concurrent access. Once the central system is paralyzed, the whole service will not be available. Based on the characteristics of equal rights and joint construction of blockchain technology, build a directory system belonging to all departments, and realize comprehensive data collection based on the principle of joint construction and sharing. Based on the asymmetric encryption characteristics of blockchain technology, each information is encrypted separately (each subject's information has a separate decryption private key) to prevent information disclosure. Based on the characteristics of the distributed ledger of blockchain technology, the data is distributed on all nodes in the network. Each node has full data and can provide application services independently, which can avoid the problems of unavailability and data loss of the whole system caused by a single point of failure.
        The "acceptance materials for the construction project of electronic license sharing platform based on blockchain technology" shows that the system deploys a server in each business department of the government (including civil affairs, social security, public security, industry and commerce, provident fund, health, local tax, national tax, real estate, real estate and Information Center) as the node machine of the blockchain, and many node machines form the blockchain alliance chain network of electronic license sharing. Blockchain node machines provide general interface access to realize data submission and query. The functions and permissions of each node machine can be different. The electronic license sharing platform centrally deploys the registration and management services of members in the information center. Only the CA certificate (public-private key pair) issued by the member service can each business department submit and query data on the node server of the Department, and the request of unregistered identity is not accepted.
        Support the expansion of access to all business departments related to electronic licenses in the city. With distributed computing and storage, there is no centralized hardware or management organization, and the rights and obligations of any node are equal. The data blocks in the system are jointly maintained by the nodes with maintenance functions in the whole system. Introduce advanced concepts such as blockchain and distributed accounting to build the infrastructure. In addition to the business data of transactions being encrypted when necessary, the ledger of blockchain is open to all participating nodes, and any node can query the block data through the open interface, so the information of the whole system is highly transparent. Once the information is verified and added to the blockchain, it will be permanently stored. Unless most nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid, so the data stability and reliability of the blockchain are very high.
        The private key (CA certificate) registered by the unified member center must be signed before querying and submitting the data on the blockchain; It can identify and authorize as an operating user, and restrict the user's operating behavior and operable data items. The system adopts scalable technical architecture to meet the requirements of information construction and rapid development of application system; The system adapts to the needs of relevant business departments, personnel and business process adjustment. When the number of users increases, the business scope expands and the business model changes, the system should have a good expansion mechanism and flexible adjustment scheme to adapt to its changes; The system shall meet the needs of information sharing and integration with other business departments and other application systems.
        After the blockchain sharing network is formed, the scenarios on this blockchain network can be continuously expanded by dynamically publishing smart contracts. For example, in the urban information chain, departmental nodes have good scalability. According to its disclosure, after the completion and effective operation of the project, they issued a bidding announcement for the second phase on March 27, 2018, which plans to expand to 49 departments in the city based on the completion of 10 node layout and data docking departments in the first phase, and implement the node expansion and business application construction of new departments, the construction of public ledger standard system of electronic certificates and licenses, and the construction of log analysis system. A person in charge of the "smart Nanjing" project of the Nanjing Municipal Development and Reform Commission told nuclear finance and economics that the large-scale application of blockchain in e-government was not achieved overnight. It was only after experiencing the test of the "integrated real estate transaction and real estate registration processing platform" that the charm of blockchain was increasingly found.
        The real estate transaction and real estate registration business involves 12 subjects, such as real estate, land, local tax and provident fund. The participating departments and institutions develop their own process standards, acceptance materials and window services, resulting in different service standards, incomplete information publicity, scattered handling windows and other problems. Taking the stock housing transaction registration as an example, the parties need to go to the transaction registration hall for 3 times and to the window for 18 times to complete the four major businesses of number retrieval, transaction, tax and registration. Taking the paper sealed documents as the judgment basis for each transmission link, 19 materials are required to be submitted for a transaction registration. All departments are only responsible for storing their own materials and allowing citizens to submit them repeatedly.
        On the blockchain based electronic license platform, the real estate bureau and the land and Resources Bureau implement a smart contract based on the consensus of business needs, jointly maintain the registration of each real estate data, effectively solve the difficult problems in the process of real estate transactions, and ensure the safe and efficient sharing of data and information by all parties to the transaction. According to nuclear finance and economics, the "integrated real estate transaction and real estate registration processing platform" was launched on May 4, 2017, achieving the goal of "four reductions and one increase": merging the consultation, acceptance and charging windows of real estate, local tax, land and other departments, and realizing the joint handling of transaction registration businesses. Specifically, more than 40 registration businesses involving housing transactions, such as commercial housing sales, stock housing sales, housing gifts, and judicial rulings, were integrated into one platform, and the number of processing links was reduced from 10 to 18 to 3; The application materials are changed from 19 materials submitted by multiple windows to 9 original materials submitted to one window; The fastest time to accept the registration of commercial housing transactions is 3 minutes, and the average processing time is 16 minutes, and the certificate is issued on the spot; The fastest time to accept stock housing transaction registration is 4 minutes, and the average processing time is 21 minutes.
        As long as people line up in a queue, go to a window and hand in a set of materials, they can complete the matter handling, and can check the progress of the whole process on their mobile phones at any time, pay all taxes with "one click" on their mobile phones, and get home with free EMS express ownership certificates and bills. "As of February 22, 2018, 146787 service applications have been made, 59721 electronic house purchase certificates have been issued, 63097 real estate transaction registrations have been handled, and the paid in tax is 2.244 billion yuan." According to the above-mentioned person in charge of the national development and Reform Commission, through the integrated processing platform, the business processing links of transaction, tax verification and registration are only one eighth of that in the past, the number of materials submitted by the agents is reduced by 52.6%, and the time is significantly shortened. The commercial housing transaction registration is completed and issued on the spot, and the stock housing transaction registration is issued within 2.5 working days.
        "Citizens can issue online electronic house purchase certificates through mobile app, which can be applied in one minute and issued in two minutes to achieve ‘ zero errands ’." The person in charge said. Nanjing's "integrated real estate transaction and real estate registration processing platform" has been reported by many media, including CCTV, but the blockchain technology behind it has not attracted widespread attention in the industry. Until August 24, 2018, the five ministries and commissions of the China Banking and Insurance Regulatory Commission, the central Internet Information Office, the Ministry of public security, the people's Bank of China, and the State Administration of market supervision jointly issued the "tips on preventing illegal fund-raising in the name of" virtual currency "and" blockchain ". Whether it is to avoid risks or the needs of technological development, the concept of monetized blockchain has become the mainstream.
        At this time, the layout of Nanjing municipal government in the blockchain field is highlighted. On August 28, the Nanjing financial technology research and innovation center jointly established by the Nanjing Municipal People's government, Nanjing University, Bank of Jiangsu, Nanjing Branch of the people's Bank of China and the digital currency Institute of the people's Bank of China was officially inaugurated. The center integrates the relevant high-quality resources of the city's government departments, high-tech parks, financial institutions, universities, scientific research institutions, research and development enterprises, and new technologies such as blockchain have become its important support. On September 27, the Nanjing Arbitration Commission announced that it would make deep use of blockchain technology to cooperate with depository institutions, financial institutions, arbitration institutions and other institutions to deposit electronic data, so as to realize the online operation of the online arbitration platform for real-time preservation of evidence, electronic delivery, online trial and adjudication.
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