What are the research directions of blockchain
according to the "2019-2020 global blockchain technology layout and business investment trend research report" released by AI media consulting, with the further liberalization of policies in the future, China's blockchain instry will usher in a stage of rapid development, and is expected to enter the first echelon of global blockchain instry in an all-round way< The importance of blockchain technology to a new round of instrial reform has been paid more and more attention. Major countries around the world have accelerated the research and development of blockchain technology. However, because the instry has not yet formed a unified technical standard system, the application and promotion of blockchain are still subject to many restrictions< Second, the barbaric growth has ended and the instry has entered a new stage
after the capital winter of 2018, a large number of blockchain enterprises have been eliminated, the overall popularity of the instry has declined, and the capital has returned to rationality, and the barbaric growth stage of the blockchain instry is coming to an end. In 2019, policy factors will pull the blockchain back to the development wind, and capital and talents will flow into the blockchain instry again. With the continuous advancement of application, supervision and standardization, truly competitive blockchain enterprises will graally emerge, and the instry will usher in a new round of rapid growth.
digital economy and blockchain Technology: he is one of the earliest scholars engaged in blockchain technology in China. He has proposed and developed such theoretical methods as smart contract engineering (SCE), legal code technology, verification as a service (VAAs), etc. in the fields of combination of digital economy and blockchain, planning and consulting of digital economic Park, digital governance of blockchain, and so on Blockchain scalability, Multi Chain interconnection and blockchain formal verification technology have in-depth research and patent achievements. He presided over the research and development of Beihang blockchain series procts, including various forms of blockchain systems with independent intellectual property rights, browsers, monitors, deployment tools and blockchain big data management system (opendata)
distributed parallel computing and network: he has been engaged in cluster computing system, high-performance computing, aerospace electronic bus, and integrated network information technology research in complex computing environment for a long time. He proposed and studied the theory of reconfigurable multi cluster computing based on wolf pack and applied it to practice, and developed several application software systems
formal design and verification methods: in close cooperation with irit and INRIA, we have established a Sino French joint research laboratory for formal methods, studied model driven formal design and verification methods, proposed a number of innovative extension technologies based on AADL and synchronous language signal, and developed a number of model transformation, model validation and verification methods Verification and automatic code generation tools
in recent years, he has published more than 60 papers on SCI / EI retrieval in important academic journals at home and abroad, edited new technologies of network computing (416 pages, published by Science Press in 2001), and cooperatively completed the national authoritative textbook introction to distributed computing system (490 pages, published by Tsinghua University Press in 2014), which won the first prize of 2016 textbook, It has been adopted by more than ten key universities. He has successively presided over and participated in a number of National Natural Science Fund, national key R & D projects, 863 major projects, Junkou 863 project, National Nuclear high-tech foundation project, aerospace fund, and a number of important engineering projects in aerospace field. He won more than 30 national invention patents and soft works, won the five-year achievement award of aviation fund in 2015, and won the second-class innovation achievement award of Instry University Research Institute in 2018.
(1) distributed ledger, that is, transaction bookkeeping is completed by multiple nodes distributed in different places, and each node records complete accounts, so they can participate in monitoring the legitimacy of transactions, At the same time, they can testify together
different from traditional distributed storage, the uniqueness of distributed storage of blockchain is mainly reflected in two aspects: one is that each node of blockchain stores complete data according to block chain structure, while traditional distributed storage generally stores data in multiple copies according to certain rules. Second, the storage of each node in the blockchain is independent and has the same status, which relies on the consensus mechanism to ensure the consistency of storage, while the traditional distributed storage generally synchronizes data from the central node to other backup nodes[ 8]
no single node can record the account data separately, so as to avoid the possibility that a single bookkeeper is controlled or bribed to record false accounts. In theory, unless all the nodes are destroyed, the accounts will not be lost, so as to ensure the security of the account data
(2) asymmetric encryption and authorization technology, the transaction information stored on the blockchain is public, but the account identity information is highly encrypted, which can only be accessed under the authorization of the data owner, thus ensuring the data security and personal privacy
(3) consensus mechanism is how to reach a consensus among all accounting nodes to determine the validity of a record, which is not only a means of identification, but also a means of preventing tampering. Blockchain proposes four different consensus mechanisms, which are suitable for different application scenarios and achieve a balance between efficiency and security
the consensus mechanism of blockchain has the characteristics of "the minority is subordinate to the majority" and "everyone is equal", in which "the minority is subordinate to the majority" does not completely refer to the number of nodes, but also can be the computing power, the number of shares or other characteristics that can be compared by computers“ "Everyone is equal" means that when the nodes meet the conditions, all nodes have the right to put forward the consensus results first, and then directly recognized by other nodes, and finally may become the final consensus results. Taking bitcoin as an example, the workload proof is adopted. Only when more than 51% of the accounting nodes in the whole network are controlled can a nonexistent record be forged. When there are enough nodes in the blockchain, this is basically impossible, thus eliminating the possibility of fraud.
(4) smart contract, which is based on these trusted and tamperable data, can automatically execute some pre-defined rules and terms. Take insurance as an example. If everyone's information (including medical information and risk occurrence information) is true and reliable, it is easy to carry out automatic claim settlement in some standardized insurance procts
Blockchain instry development trend analysis technology has broad application prospects
with the characteristics of point-to-point payment, openness and transparency, the most direct application field of blockchain technology application is payment field. However, there are many pain points in domestic ticketing instry, such as too many agent levels, rampant scalpers, selling more than one ticket, fake tickets, lack of credit, etc, It can be solved by blockchain technology. The traditional ticketing mode needs the support of centralized facilities such as the third-party ticketing platform, and the information is extremely asymmetric. The new ticketing mode based on blockchain technology can realize point-to-point transaction, and the whole process is transparent and traceable
blockchain e-ticketing platform
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data source: the financial field of blockchain + application sorted out by prospective instry research institute is reshaping the financial instry pattern
the open and tamperable attribute of blockchain technology provides the possibility for decentralized trust mechanism,
has the potential to change the financial infrastructure. All kinds of financial assets, such as equity, bonds, bills, warehouse receipts, fund shares, etc., can be integrated into the blockchain ledger to become digital assets on the blockchain. They can be stored, transferred and traded on the blockchain, which makes them have a very broad application prospect in the financial field
by recing the cost of cross-border payment, securities trading and compliance, blockchain technology can save banks $15 billion to $20 billion a year
through the application of intelligent contract, blockchain + insurance can realize automatic claim settlement of insurance policy. Insurance institutions have high management and operation costs, and the data on the blockchain is true and reliable, which can effectively simplify the processing process of policy claims. In addition, the blockchain technology can realize the digital management of personal data, simplify information authentication, and help to trace the history of data
entertainment of blockchain + application: the development ecology of blockchain has taken shape, and the media instry may become the main beneficiary
blockchain technology can be widely used in news, games, picture right and other entertainment fields
blockchain technology will bring great changes to the underlying structure of the game and have a great impact on the current game instry. Gamers now have gatekeepers (centralized organizations) to decide prices, tax, censor users, control content, and profit from data. Through the decentralized platform, consumers can socialize and trade without mediation, providing more control and flexibility for game players in the game experience
blockchain + applied supply chain: it can improve the transparency of the supply chain, establish a new supply chain system
blockchain technology can improve the transparency, traceability and security of the supply chain, and promote a kind of trust and integrity. 1) At present, the supply chain has many disadvantages, such as long chain, many intermediate links, many interest joints, opaque and so on; 2)
the distributed bookkeeping technology of blockchain can register the transfer of goods on the ledger as a transaction, and determine the participants related to the proction chain management, as well as the proct price, date and location
The sudden epidemic situation has pressed the "pause" button for many instries, but science and technology is the most effective means to fight against disasters. Blockchain technology has realized the combination with finance, logistics, supply chain, government affairs, public welfare, urban management and other application fields. At the same time, e to the imperfect development of technology, the role of blockchain in the prevention and control of the epidemic is very limited, so we need to explore deeper scenario applications
from the survey data, the main application directions of instrial blockchain in the post epidemic period include: traceability, financial (including insurance) supervision, collaborative sharing. Deposit certificate, digitization, credit investigation, digital asset transaction, etc
in the main application direction of instrial blockchain in the post epidemic period, more than 70% of enterprises choose traceability and financial (including insurance) supervision, in addition to collaborative sharing and certificate deposit. Digital also has more than 60% of the enterprise choice, compared with the low choice rate of credit reference and digital asset transaction, in which the choice rate of digital asset transaction is less than 50%, only 48%
to avoid risks and promote the healthy development of instrial blockchain
as an emerging technology development direction and instrial development field, blockchain has been widely concerned. The application of instrial blockchain is accelerating, which is mainly reflected in two aspects:
first, in the past, open source systems were represented in technology, and most of them were open source projects oriented to consumers, but now many projects oriented to instry and enterprise characteristics have been added; At the same time, more and more enterprises such as Internet giants and high-tech enterprises begin to enter this field, indicating that the era of instrial blockchain has come
secondly, the emergence of blockchain reces the threshold of trust and the cost of realization, enabling some financial and trade scenarios that could not be realized before to be realized. In this way, some new financial forms can be derived, providing more space for financial innovation
although the application of instrial blockchain is speeding up, it is still in an early stage of development. This is mainly reflected in the fact that blockchain technology alone can not fully solve the trust problems and information island problems between entities, and the emergence of blockchain technology also puts forward new problems for the current law and regulation
because of its decentralized and difficult to tamper with characteristics, blockchain has become a comprehensive subject driven by technology and deeply affecting economy, finance, society, organizational form and governance. In addition, blockchain technology is not yet fully mature in system stability, application security, business model and other aspects, which puts forward requirements for privacy protection and storage capacity of data on the chain
it should be noted that the current blockchain instry has been involved in many technical fields such as it, communication, security, cryptography and so on. What it needs is a kind of compound talents, which poses new challenges to personnel training and school ecation
the short-term impact of blockchain should be treated calmly to avoid overestimation. At the same time, it is necessary to further strengthen laws and regulations and supervision to avoid the possible risks of blockchain technology, so as to promote the healthy development of instrial blockchain
- for more data sources and analysis, please refer to the analysis report on China's blockchain instry market outlook and investment strategic planning of foresight Instry Research Institute
in fact, the supply chain process is now opaque and defective, and the management is very difficult. However, these problems of supply chain are expected to be made up by blockchain. As an emerging technology, blockchain has proved its value, which helps different instries achieve transparency and improve efficiency<
jinwowo group shows the future of supply chain:
blockchain technology is likely to successfully change the supply chain and subvert the proction, marketing, purchase and consumption mode of commodities. In the long run, improving the transparency, traceability and security of the supply chain can promote an environment of trust and integrity, prevent some non-standard practices in the supply chain system, and help to build a safer and more reliable economic system
in the future, jinwowo will continue to tap the value of blockchain technology in the commercial field, give full play to the advantages of big data services, add value to user behavior, break the ice for the development of small and medium-sized enterprises, and build a real, efficient, safe and honest Internet community of destiny.