Current problems of blockchain Technology

1. At present, there are still many problems in the practical application of blockchain technology, such as low performance, less transaction frequency per unit time, lack of technology application ecological environment, lack of relevant application cases and fraud in the name of blockchain.

2. The mines in Outland should be the most valuable, but it's hard to mine, and the mines in pandaliya are also good
under the ideal situation of big bird mount + no one grabs the mines with you + opposing camp doesn't kill you + familiar with the mines, more than 1000g per hour
under normal circumstances, e to various interference factors, 500g per hour is good, minus 200g per hour, the actual income is 300g per hour, If you are engaged in manual mining, you should also consider the fatigue factor. The more mining, the lower the efficiency. It is not recommended to use this lowest level method of earning money. Just like the wage earners in big cities, they can barely earn a living (point card money), but they have no future

3. Blockchain technology provides a kind of machine trust in the form of "machine code, formal proof, decentralization, distribution and information system". This kind of machine trust no longer needs the help of a third-party centralized organization. On the basis of machine trust, people can cooperate and trade even if they don't know each other. Relying on the powerful technical functions of blockchain, GTA subverts the traditional business model of gene technology, uses cryptography technology to confirm the sovereignty of personal gene data and protect the privacy of personal information. By using the economic incentive mechanism of pass, large-scale indivial users, market promoters, gene sequencing institutions, data storage institutions and data users are encouraged to actively participate in and cooperate, so as to quickly gather a large amount of gene data; Then, the business value is realized by the wide application of gene big data in the field of life and health.

4. Take the subway to OCT station
or take the bus to Konka Group or Fanghua garden

5. PWR power lamp GPON light signal lamp eth1 network card 1 eth2 network card 2 indicator lamp FXS voice lamp

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

7. In one sentence, it is decentralization. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system. In a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it is a distributed account book that can not be tampered with and forged by means of cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing method, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data. Advantages: 1) the algorithm is simple and easy to implement; 2) There is no need to exchange additional information between nodes to reach a consensus; 3) It costs a lot to destroy the system. Disadvantages: 1) waste of energy; 2) It is difficult to shorten the block confirmation time; 3) The new blockchain must find a different hash algorithm, otherwise it will face bitcoin attack; 4) It is easy to proce bifurcation and needs to wait for multiple confirmations; 5) There is never finality, and checkpoint mechanism is needed to make up for it.

8.

By the end of 2019, the number of blockchain research institutions in China has reached 97. In addition, domestic colleges and universities have arranged blockchain technology research, strengthened theoretical knowledge innovation of blockchain technology, and improved their blockchain technology R & D capability. By the end of 2019, there are 24 colleges and universities in China participating in strengthening blockchain technology R & D. The core technologies are mainly distributed in consensus algorithm, cross chain, underlying architecture and multi chain

in 2020, the blockchain instry will be further standardized

in 2020, China's blockchain policy will continue to be favorable, the standards and specifications will be more perfect, the instrial scale will continue to grow, the technology will continue to innovate and develop, and the application demonstration effect in key fields will accelerate. At the same time, according to the problems existing in the development of China's blockchain in 2019, CCID blockchain Research Institute puts forward six suggestions: accelerating the formulation of top-level design, establishing and improving the regulatory system, accelerating the innovation and development of core technologies, promoting the third-party evaluation and certification, strengthening the cultivation of professional talents, and accelerating the implementation of applications in various fields

- the above data comes from the analysis report of China's blockchain instry market outlook and investment strategic planning of foresight Instry Research Institute