Digital currency released by Facebook

1.

China does not issue digital currency, and all the existing digital currencies are illegal

the central bank pointed out that no legal digital currency has been issued, and no institutions and enterprises have been authorized to issue legal digital currency. At present, the so-called "digital currency" in the market is not legal digital currency

virtual currency is the electronization of illegal currency, and its original issuer is not the central bank. This kind of virtual currency is mainly limited to circulation in a specific virtual environment. Digital currency can be used for real goods and services transactions, but only the digital currency issued by the state is legal digital currency

"the legal currency of our country is RMB." In the risk warning, the monetary Bureau of the people's Bank of China once again stressed that RMB is uniformly printed and issued by the people's Bank of China

extended information:

with the soaring price of virtual currency represented by bitcoin, digital currency and the blockchain technology behind it have attracted great attention of the global financial community. In fact, legal digital currency has not yet been issued in China. Recently, the official website of the monetary Bureau of the people's Bank of China (PBOC) released the risk warning on issuing or promoting digital currency in the name of the people's Bank of China

in 2013, the central bank, together with five ministries and commissions, issued the notice on prevention of bitcoin risks, which clearly defined non legal digital currencies such as bitcoin as virtual commodities, which do not exist in the form of currency and legal currency

At the same time, digital money is different from electronic payment. In the actual use experience, digital money and electronic payment may feel similar, but they are still quite different in essence. Before digital currency, the financial instry has been highly informationized

such as Internet banking, WeChat, Alipay and other payment electronic popularization graally, physical cash accounts for only a very small part of all circulating currencies. In spite of this, because the money used in the transaction comes from the bank account, it actually corresponds to the banknotes

currently, digital currency in the market involves multi-level marketing

digital currency is a new technology that can improve the efficiency of transaction, but it is targeted by lawless elements to carry out pyramid selling and fraud in its name

the official website of the monetary Bureau of the people's Bank of China issued the risk warning on issuing or promoting digital currency in the name of the people's Bank of China. The central bank pointed out that recently, indivial enterprises falsely used the name of our bank to label relevant digital procts as "authorized issuance by the people's Bank of China", or falsely claimed that the digital currency promotion team of the central bank issued, in an attempt to deceive the public and take the opportunity to make huge profits

in the risk warning, the central bank stressed that the bank has not issued legal digital currency, nor authorized any institutions and enterprises to issue legal digital currency, and there is no promotion team. At present, the so-called "digital currency" in the market is not legal digital currency

at the same time, the so-called "digital currency" launched by some institutions and enterprises and the so-called promotion of the central bank's issuance of digital currency may involve pyramid selling and fraud. The general public should raise their risk awareness, invest rationally and prudently, and prevent the interests from being damaged

2.

1. Enjin (enj)

in the near future, the game instry is the instry most likely to adopt blockchain on a large scale. Enjin coin is the cryptocurrency of virtual goods created by Enjin. Enjin is the "largest online gaming community platform" with more than 250000 gaming communities and 18.7 million registered gamers

Cardano (ADA)

compared with Ethereum, EOS and Tron, Cardano is the third generation of decentralized app (DAPP) and smart contract platform. Cardano's design philosophy has the following points:

scalability: with the growth of users, the transaction processing speed is not affected or even faster, such as P2P protocol

interoperability: in the future, there will be countless devices connected to each other, instead of only connecting and forwarding through routers. All kinds of devices can communicate directly through standard general protocol

Sustainability: like bitcoin, Cardano project will not be controlled and influenced by a certain company or organization, which is a safe, decentralized and sustainable development platform

With the popularity of sto (security token offers), Nash also plays an important role. Nash is a kind of registered security token. In the past, Nash participated in and led the development of many projects

Nash exchange is a decentralized exchange. If you hold nex token, you can calculate the dividend here

4. Basic attention token (BAT)

bat mainly solves the problem of advertising:

user information is abused: large companies such as Google and Facebook track and use user information and behavior, and sell without the knowledge of users

the effect of advertising is restrained: middlemen earn most of the fees, a large number of advertisements are blocked by users using software, and advertisements are fake

in the past six to 12 months, the number of publishers using the brand browser (Note: the brand browser supports bat token) has grown rapidly, and almost no blockchain ecosystem has grown so fast

5, chainlink (link)

chainlink mainly solves the problem that each blockchain has and the smart contract cannot obtain external data. In order to introce external data into the blockchain, the concept of Oracle is proposed in smart contract

companies including Google are supporting the development of chainlink. Here is a list of chainlink partners

one of the main problems of chainlink is similar to Ethereum. The development team has reserved 650 million link tokens, while only 350 million are in circulation at present

Ethereum (ETH)

Ethereum has long occupied the second place in the top 100 cryptocurrencies. Its ecology is so big that we can't call it altcoin now. To tell you the truth, I'm not optimistic about Ethereum in the long run, but it will flourish in the short run

3. So far, we can't buy the digital currency issued by the central bank, but it's coming soon
according to the news on August 10, Mu Changchun, deputy director general of the payment and Settlement Department of the people's Bank of China, said at the third China finance forum that the central bank's digital currency will soon be launched and will adopt a two-tier operation system, that is, the people's Bank of China will be the upper tier and commercial institutions will be the second tier< As for why the central bank's digital currency chooses the "two-tier operation system", Mu Changchun explained:
1. The central bank's digital currency is bound to face the retail scene and the public, while the performance of bitcoin and Libra can not meet the high concurrency. After a period of research, it is decided to adopt the two-tier system
2. It is a complex system engineering for big countries to issue central bank digital currency
3. The IT infrastructure application and service system of commercial banks and other institutions have been relatively mature, the user base is huge, and the service habit has been formed; There are plenty of talents and it experts; The system has strong processing ability, and has accumulated some experience in the application of financial technology
4. Through the design of two-tier operation, risk can be avoided to concentrate on a single indivial
5. Single layer investment will lead to "financial disintermediation". If the central bank directly releases digital money to the public, it will crowd out the deposits of commercial banks and affect the loan delivery ability of commercial banks; In extreme cases, it will also subvert the existing financial system, leading to the "grand unification" of the central bank
6; It will not affect the existing monetary policy transmission mechanism
7. The central bank will not preset the technology route, any advanced technology may be used in the research and development of the central bank's digital currency; The boundary between electronic payment and central bank digital currency is fuzzy; It can fully mobilize market forces and realize system optimization through competition
it can be seen that the central bank has recognized the legitimacy of bitcoin and Ethernet in disguised form. However, the central bank's digital currency is different from the traditional blockchain digital currency. It is 1:1 anchored RMB. I regard it as RMB digitization. The central bank's digital currency, paper money, coins and bonds exist at the same time, but in different ways. It is a kind of stable currency, and there is no room for speculation
at the beginning of this year, the most influential event of digital currency is Facebook's upcoming launch of digital currency Libra. If successful, it will bring 3 billion Facebook users into digital currency. However, Libra has not included the RMB in its basket of currencies. Coupled with the sweater war and exchange rate war with the United States, this may be the reason why the central bank urgently launched the central bank's digital currency. It is said that Wal Mart will also launch digital currency. With JPMorgan's issuing currency before, it can be predicted that traditional business giants will enter the era of blockchain digital currency one after another
the issuance of digital currency by the central bank may be a great benefit to the users of China's currency circle. Due to some policy reasons, the users' access to the digital currency world is not very smooth, which is the problem of difficult access to money. The most common stable currency, usdt, does not seem to be very stable and over issued seriously. In addition, the attorney general's office in New York investigates TEDA and other reasons, There may be a risk of thunderstorm at any time. According to statistics, about 80% of the users who use usdt are Chinese users, while the United States uses USD directly, and a few will use usdt. If the central bank introces digital currency, it will greatly facilitate digital currency users
finally, the other role of the central bank's digital currency is cross-border trade settlement. If it is combined with Alipay and WeChat payment, it will compete abroad and compete with Libra internationally.

4. God. Block the digital currency issued by the Central Bank of China. I think the significance of China's digital currency issuance is convenient and simple.

5. Hello: the era of blockchain 1.0 is represented by bitcoin BTC, which has been widely used in digital currency. In the era of blockchain 2.0, represented by Ethereum eth, the smart contract function is given. In the era of blockchain 3.0, which extends from a single digital currency to other financial fields, the DLK wallet is represented. It is continuously optimized and upgraded on the basis of bitcoin and Ethereum technology, and its application is extended to all aspects of the whole social and economic field. If the Facebook token is issued, it should officially enter the era of 3.0, but the price is still a little more than 2.0

6.

Core password is used to protect national top secret, secret and secret information, while ordinary password is used to protect national secret and secret information

core password and ordinary password are used to protect state secret information, effectively guarantee the security of central government orders and military orders, and build a password barrier for safeguarding the sovereignty, security and development interests of national cyberspace. According to the law of the people's Republic of China on keeping state secrets, state secrets refer to matters related to national security and interests, which are determined according to legal proceres and only known to a certain range of people within a certain period of time According to the different protected objects, the code law divides the core code and ordinary code

extended data:

the core password and common password part specifies the requirements for the use of core password and common password, the security management system, and a series of special security systems and measures for the state to strengthen the work of core password and common password

in the part of commercial password, it stipulates the commercial password standardization system, testing and certification system, market access management system, use requirements, import and export management system, e-government e-authentication service management system and commercial password in-process and post supervision system

8. 1. Xiaoqing has read 47 pages of a novel, and there are two pages left to read. How many pages is the book
2. Xiao Fang's father bought 13 oranges, and his mother bought four times as many oranges as his father. How many oranges did his mother buy
3. Xiaofang has done 12 questions, which is 6 times of Xiaoxue's. how many questions has Xiaoxue done
4. Xiao Zhou cut 27 paper stars in two days yesterday and today, 24 paper stars yesterday and how many paper stars today
5. Xiao Zhao has read seven pages of a composition book, but there are still five pages left to read. How many pages is the book
6. Nana students used green paper and red paper to make flags. A total of 35 pieces of paper were used, including 33 pieces of green paper. How many pieces of red paper did they use
7. Wang Liang has 8 joke books and Xiao Yun has 24. How many times does Xiao Yun's book compare with Wang Liang's
8. Every 23 mangoes are packed in one bag and three bags. How many mangoes are there in all
9. The school has 38 white rabbits and 38 black rabbits, including 36 white rabbits. How many black rabbits are there
10. Xiao Liang's father bought six apples and his mother bought four. How many apples did he buy altogether
11. Lin Fang has read 16 pages of an English book, which is three times as many as Lin Fang. How many pages is the book
12. Tian Yong originally had 25 books, but later bought some books. Now there are 27 books in total. How many books did Tian Yong buy
13. There are many students on the school playground, including 29 male students and 87 female students. How many times is the number of female students higher than that of male students
14. There are 36 volleyballs in the store, selling 18 on average every day. How many days can it sell
15. One sheet can be made every 34 meters of cloth, and two sheets need to be made. How many meters of cloth do you need
16. The school bought 8 balls, and now there are 13 balls. How many balls did the school have
17. Xiao Zhao originally had 14 books, but later bought some books. Now there are 18 books in total. How many books did Xiao Zhao buy
18. Xiao Liang and his classmates ate 34 watermelons twice. The first time, they ate 32 watermelons. How many watermelons did they eat the second time
19. Tian Yong has read 8 pages of a joke book, with a total of 16 pages. How many times are the pages of this book read by Tian Yong
20. Xiaofang cut 33 paper stars and another 3 paper stars. How many paper stars did she cut
21. One sheet can be made every 8 meters of cloth. There are 56 meters of cloth in total. How many sheets can be made
22. Xiao Yun's father bought 22 mangoes and his mother bought 3 mangoes. How many mangoes did he buy in total
23. The school has 25 white rabbits and 25 black rabbits, including 23 white rabbits. How many black rabbits are there
24. Xiaoliang has 29 comic books, and Xiaofang is twice as many as Xiaoliang. How many copies does Xiao Fang have
25. Lin Fang did 90 questions, and Lin Fang did 10 times more than Wang Liang. How many questions did Wang Liang do
26. Tian Yong cut 19 paper stars yesterday, twice as many today as yesterday. How many paper stars have he cut today
27. There are 23 birds in the tree, 18 of them fly away. How many birds are left
28. There are many students on the school playground, including 29 male students and 87 female students. How many times is the number of female students higher than that of male students
29. There are 36 stationery boxes in the store, selling 18 on average every day. How many days can it sell
30. The students used 37 pieces of red paper and 2 pieces of green paper to make small flags. How many pieces of paper did they use
31. Every 17 mangoes are packed in one bag and 2 bags. How many mangoes are there in all
32. The school bought 13 balls, and each ball cost 5 yuan. How much did it cost
33. There are 49 birds flying away from the tree and 2 birds flying away. How many birds are flying away twice
34. The school has 13 white rabbits and 13 black rabbits, including 8 white rabbits. How many black rabbits are there
35. There are 24 tons of coal in the factory, 22 tons of which have been burned. How many tons are left
36. Xiao Chen and his classmates ate a total of 19 oranges twice. In the first time, they ate 16 oranges. In the second time, how many oranges did they eat
37. When Xiaobo reads a novel, he has read 10 pages, but there are still 2 pages left to read. How many pages is the book
38. Xiao Chen cut 24 paper stars yesterday and 72 today. How many times is it today
39. Xiaoming has 21 paper cranes, and made two more. Now there are a total of
40. Wang Liang did 9 questions, and Xiaohua did 7 times as many as Wang Liang. How many questions did Xiaohua do
41. The students planted 2 rows of trees, with 9 trees in each row. How many trees have you planted
42. Nana's family has 32 Goldfish and 64 carp. How many times are carp than goldfish
43. Xiaohua and his classmates ate watermelon. The first time they ate 20 watermelons, the second time they ate 80 watermelons. How many times did they eat the second time
44. Wang Liang used three pieces of green paper and six pieces of red paper to make small flags. How many times more red paper than green paper
45. One sheet can be made every 13 meters of cloth. There are 26 meters of cloth in total. How many sheets can be made
46. Xiao Gang cut 8 paper stars yesterday and 40 today. How many times is it today
47. Xiaohua's family has 25 goldfish and carp, including 23 carp. How many goldfish are there
48. Xiaoxue has 21 prose collections and Xiaohua has 84. How many times of Xiaohua's book is Xiaoxue's
49. There are many students on the school playground, including 41 male students and twice as many female students as male students. How many female students are there
50. There are 11 tons of coal in the factory, 9 tons of which have been burned. How many tons are left
51. Xiaohua used 29 pieces of green paper and 87 pieces of red paper to make small flags. How many times more red paper than green paper
52. Students planted 4 rows of trees, with 5 trees in each row. How many trees have you planted
53. Xiaoting and her classmates ate a total of 17 oranges twice. The first time, they ate 10 oranges. How many oranges did they eat the second time
54. There are 37 white rabbits and 35 black rabbits in the school. How many are there
55. Xiaohua originally had 29 books, but later bought two. How many books are there now
56. On average, the store sells 19 chairs a day, which is enough for five days. How many chairs are there in the shop
57. Lili's family has 11 goldfish and 22 carp. How many times are carp than goldfish
58. One sheet can be made every 7 meters of cloth, and five sheets need to be made. How many meters of cloth do you need
59. Xiaobo and his classmates ate 17 oranges for the first time and 5 oranges for the second time. How many oranges did they eat in total
60. There are 45 oranges for each student, and there are 2 students. How many oranges did the students share
61. Xiaogang has read 29 pages of an English book, which has 58 pages in total. How many times the number of pages of this book is that of Xiao just read
62. There are 11 monkeys on the mountain, and 6 more. How many monkeys are there in all
63. Children play games. There are 9 students in a group and 72 students. How many groups can they be divided into< The students planted 22 rows of trees, a total of 88 trees. How many trees are there in each row
65. There are 11 sheep on the grass, and 6 more. How many sheep are there in all< She has read 16 pages of an English book, which has 22 pages in total. How many pages have not been read
67. Xiaofang's family has 30 goldfish and carp, including 28 carp. How many goldfish are there
68. There are 29 monkeys on the mountain, and three more. How many monkeys are there in all
69. Xiaoting has 24 goldfish and 72 carp in her family. How many times are carp than goldfish
70. Tingting has read 47 pages of a novel, and there are two pages left to read. How many pages is the book
71. Nana cut 16 paper stars yesterday and today, 12 paper stars yesterday and how many paper stars today
72. The school has 39 white rabbits and 2 black rabbits. How many rabbits are there in total
73. Children play games. Seven students are divided into five groups. How many students are there
74. There are 92 chairs in the store, with an average of 23 sold per day. How many days can it sell
75. The school has 39 white rabbits and 2 black rabbits. How many rabbits are there in total
76. Nana and Xiao Yun did 12 questions in total, of which Nana did 10 questions, and how many questions did Xiao Yun do
77. There are nine birds in the tree. Five birds fly away. How many birds are left
78. 15 birds fly away from the tree and another 3 birds fly away. How many birds fly away twice
79. There are 11 white rabbits in the school, and the number of black rabbits is 8 times that of white rabbits. How many are there
80. The students divided 7 oranges on average, and the students divided 42 oranges in total. So, how many students are there
81. There are 14 sheep on the grassland, and another 5 sheep are coming. How many sheep are there in all
82. Xiaochen's family has 44 goldfish, and carp is twice as many as goldfish. How many are there
83. The school has 50 white rabbits and 50 black rabbits, of which 48 are white rabbits. How many are black rabbits
84. Students planted three rows of trees, with five trees in each row. How many trees have you planted
85. Xiao Zhou has read nine pages of a composition book, which has 11 pages in total. How many pages have not been read
86. Xiao Zhou and his classmates ate 11 peaches for the first time and 8 peaches for the second time. How many peaches did they eat in total
87. Xiaoxue has 22 composition books, 2 less than Xiaozhao. How many copies does Xiao Zhao have
88. Lili has read 47 pages of a novel, and there are two pages left to read. How many pages is the book
89. There are 25 monkeys on the mountain. Now there are 28 monkeys on the mountain. How many are there
90. Lili made 18 paper cranes yesterday and today, including 14 yesterday. How many today
91. Students are divided into six oranges on average, with four students. How many oranges did the students share
92. The school bought 48 balls. Now there are 50 balls. How many balls did the school have
93. Xiao Li and his classmates ate a total of 34 oranges twice. The first time we ate 32 oranges, and the second time how many oranges
94. There are 20 volleyballs in the store, which are sold 5 times a day on average. How many days can it sell
95. Mingming's father bought 20 oranges, while his mother bought 40 oranges. How many times did his mother buy oranges
96. The average number of chairs sold in the store is 8 per day, which is enough for 6 days. How many chairs are there in the shop
97. Xiao Yun has read 18 pages of a novel, but there are still three pages left to read. How many pages is the book
98. Xiaoqing has read four pages of a composition book, which is twice as many as Xiaoqing. How many pages is the book
99. Xiaohua has done 96 questions, which is 24 times of Nana's. how many questions has Nana done
100. Xiao Chen has read 10 pages of an English book, which has 19 pages in total. How many pages have not been read?

9. There are so many things blockchain can do. However, blockchain is just a technology with a very broad prospect, similar to the Internet technology in the 1990s. The Internet has been proved to be the greatest technology in the 21st century, which has changed the way of human survival
for example, blockchain can be applied to P2P, bills, securities and other financial fields, as well as contracts. Of course, it can also protect intellectual property rights, such as distributed content publishing platform decent