The role of blockchain in digital economy

1. At present, blockchain is most widely used in the field of financial technology, such as digital asset trading. As a kind of underlying technology, blockchain is the technical implementation of bitcoin. The rapid application of blockchain technology also needs virtual currency. In the past, a large-scale economic scenario requiring mutual trust and extensive cooperation between many people can only be solved by centralization, with low efficiency. The emergence of blockchain technology has solved this problem and eliminated this center. One of the important reasons to get rid of this center is that virtual currency provides an endogenous economic incentive mechanism for the blockchain, so that people have the motivation to participate in the economic activities after the transformation of the blockchain. Of course, blockchain will have more extensive and mature applications in more fields in the future. For example, in November last year, State Grid submitted a patent application named "power transaction control method and device about blockchain". This year, Xi'an City Wall International Marathon also used blockchain technology for the first time in the world to collect athletes' competition data, data and data All the information such as the winning part is registered on the blockchain. With its traceable and tamperable technical characteristics, the information channel between the events is opened up, which effectively ensures the reliability of the competition results.

2. Professor Hu Kai is one of the earliest scholars engaged in the research of blockchain technology in China. He proposed and developed such theoretical methods as smart contract engineering (SCE), legal code technology, and verification as a service (VAAs). He has made great achievements in the combination of digital economy and blockchain, planning and consulting of digital economic Park, digital governance of blockchain, scalability of blockchain, and so on There are in-depth research and patent achievements in Multi Chain interconnection and blockchain formal verification technology.

3. 1. Active support from the United States. 2. During the Korean War, the American military orders strongly promoted Japan's economic development. 3. Formulate the export-oriented economic development strategy, introce the most advanced scientific and technological achievements, adjust the domestic instrial structure, and promote exports. 4. Pay special attention to the development of ecation and science and technology.

4. Blockchain technology supports the development of real economy and can be applied to all walks of life. In the field of people's livelihood, such as targeted poverty alleviation, medical care, pension, food security and government services. Secondly, in the real economy, it can rece the financing cost of enterprises and solve the problems of financing difficulty and high financing cost of small and medium-sized enterprises. Blockchain is now combined with the development of various instries. A SMIC blockchain service platform project initiated by Changsha high tech Zone is a blockchain + public service mode, and enterprises are being recruited to join the chain.

5. Positioning as "technology driven enterprise service platform", zhubajie has been exploring new development mode in the field of digital economy. A year ago, zhubajie network began to introce blockchain technology for service transactions
taking zhubajie.com platform as an example, blockchain technology has played a role in the field of service transaction, quietly providing strong technical empowerment for service transaction protection. In zhubajie, blockchain technology has helped many users provide service transaction protection and right protection.

6. Based on the background of digital economy era, in the future development, on the premise of maintaining the existing digital assets and Internet featured procts, jinwowo will continue to tap the Internet value of blockchain technology in the commercial field, give full play to the advantages and experience of big data service, promote the development of small and medium-sized enterprises in the whole country, and stimulate greater commercial value of the Internet.

7. Bitcoin is proced by the source P2P software, such as cryptocurrency or electronic currency. Generally speaking, it uses the computing power of mining equipment to calculate the number of difficult problems. Network confirms the transaction. Bitcoin network rewards bitcoin according to solving the number of difficult problems. There is no exchange rate of bitcoin. It is said that the exchange rate of bitcoin is universal all over the world. Bitcoin mining node software is based on P2P network, digital signature, digital signature The password evidence initiates the verification transaction node to broadcast the transaction to the network. Some broadcast transactions are verified by the miner. The miner expresses the confirmation transaction with the self working proof knot. The packaged data block data block is a continuous data block chain. Each bitcoin node collects the unconfirmed transaction and gathers it into the data block. The data block in front of the data block gathers the miner node to add the random adjustment number and calculates the front data block SHA-256 Hash operation value mining node repeatedly tries to find the random adjustment number directly, so that the hash value is lower than a specific target. Because it is not difficult to find the qualified random adjustment number inversely by hash operation, it is necessary to estimate the total number of broken trial and error process workload. The proof mechanism plays a role. The node finds the problem, broadcasts the new solution to the whole network, receives the new solution data block, and checks whether it meets the specification The hash value is calculated to find that the data block really meets the requirements, and its nodes accept the data block and attach it

8. It's hard to explain

it is a data block connected with encrypted data to ensure that it will not be illegally tampered with
the encrypted data is calculated by the miner's mining machine.