Decentralization of Library

1. The subversive characteristics of blockchain lie in the following four aspects: first, transparency. The data record of the blockchain system is transparent to the nodes of the whole network, and the update operation of the data record is also transparent to the nodes of the whole network, which is the basis of the trustworthiness of the blockchain system. Because the blockchain system uses open source programs, open rules and high participation, the data records and operation rules of the blockchain can be reviewed and traced by the nodes of the whole network, with high transparency< Second, openness. The blockchain system is open. In addition to the fact that the private information of the parties directly related to the data is always encrypted, the data of the blockchain is open to all (except the blockchain system with special permission requirements). Anyone or participating nodes can query blockchain data records or develop related applications through the open interface, so the information of the whole system is highly transparent< Third, information can not be tampered with. Once the information of the blockchain system is verified and added to the blockchain, it will be permanently stored and cannot be changed (except for private blockchain systems with special change requirements). Unless more than 51% of the 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 extremely high
Fourth, decentralization. Decentralization is the most basic feature of the blockchain, which means that the blockchain no longer depends on the central processing node and realizes the distributed recording, storage and updating of data. In the traditional centralized network, attacking a central node can destroy the whole system, while in a decentralized blockchain network, attacking a single node cannot control or destroy the whole network. More than 5% of the nodes in the master network are just the beginning of gaining control. 2019 is the first year for the commercial application of blockchain technology, and the stimulation of favorable policies will make the development of blockchain technology more stable
with the application of blockchain technology graally penetrating into many fields such as digital finance and Internet, we have a clearer understanding of the value of blockchain
blockchain has formed a situation of global competition, and all countries are seizing the development opportunities, let alone China; Therefore, there is no doubt that blockchain has become a national strategy.

2. You can go directly to the official search, ask the official. But it is estimated that they will not necessarily tell you that some of them are confidential. They have an office in Beijing. Ask didi or Lao Li.

3. Arrangement management is a basic management of modern large supermarket chain. It not only maintains the cleanness, beauty and fullness of our arrangement, but also plays an important role in the specification of replenishment and price tag. Therefore, we need to attach great importance to the management of arrangement, and formulate the relevant regulations of arrangement management. The store will number all the display positions (including pile head, end rack, hanging net and other special display positions) according to the class group, define the management personnel in charge of the display position, and publicize them in the responsible display area with the display management card (the management card includes the employee's photo, job number, the display number, service supervision telephone number and group purchase consultation telephone number)
the people's Bank of China has been studying legal digital currency since 2014. According to the relevant person in charge of the digital currency Research Institute of the people's Bank of China, at present, the research and development of digital RMB is steadily advancing. Under the premise of adhering to double-layer operation, currency (M0) substitution in circulation and controllable anonymity, the digital RMB system has basically completed the top-level design, standard formulation, function research and development, joint debugging and testing, etc., and followed the principles of steady, safe, controllable, innovative and stable development The principle of practicality

the relevant person in charge of the digital currency Research Institute of the people's Bank of China stressed that the current online transmission of DC / EP information is the test content in the process of technology research and development, which does not mean the official launch of digital RMB. The current closed test of digital RMB will not affect the commercial operation of listed companies, nor will it affect the RMB issuance and circulation system, financial market and social economy outside the test environment< In short, the digital currency of the people's Bank of China is the electronic version of RMB

when it comes to digital currency, your first reaction may be bitcoin or Libra, which Facebook plans to launch< However, unlike these so-called digital currencies, the digital currency to be launched by the Central Bank of China has national credit endorsement, which can be said to be the electronic version of RMB. Therefore, the digital currency of the central bank has the nature of legal compensation

more importantly, with the endorsement of the state, the value of the central bank's digital currency will be more stable. Bitcoin and other so-called virtual currencies can not guarantee the stability of currency value, so it is common to be "cut leeks"

from the perspective of usage scenarios, the central bank's digital currency does not pay interest, and can be used in small, retail and high-frequency business scenarios, which is no different from paper money. At the same time, the use should comply with all the existing regulations on cash management, anti money laundering and anti-terrorism financing.

4.

Libra coin is safe as a virtual currency. To this end, Facebook also launched a series of programs to solve security problems. Facebook launches cryptocurrency system & quot; Libra & quot;. Libra system is operated and managed by Facebook and more than 20 partners. Each partner participates in the operation in the form of initial verifier node, and they share a transparent transaction classification account to reflect all activities on the network

Therefore, the security of Libra as a virtual currency need not be considered. I believe that the advent of Libra as a virtual currency will bring a new innovation to our world