Digital currency FST

1. In recent years, blockchain digital assets represented by bitcoin have become popular all over the world. Financial institutions, technology companies, investment companies and other participants at home and abroad have invested a lot of human, material and technical resources in the research, development, design, testing and promotion of blockchain digital assets. In order to realize the main characteristics of "four can and three can't" of blockchain digital assets, we can build the core technology system of digital assets by relying on 11 technologies of security technology, transaction technology and trusted guarantee technology. First of all, security technology is used to ensure the fluidity, storability, controllable anonymity, unforgeability, non repeatable transaction and non repudiation of blockchain digital assets. digital currency security technology mainly includes basic security technology, data security technology and transaction security technology. Basic security technology includes encryption and decryption technology and security chip technology. Encryption and decryption technology is mainly used in currency generation, secret transmission, identity verification and other aspects of digital assets. The establishment of a perfect encryption and decryption algorithm system is the core and foundation of the digital assets system, which needs to be customized and designed by the national password management organization. Security chip technology is mainly divided into terminal security mole technology and smart card chip technology. Digital assets can be traded in the form of mobile terminal based on terminal security mole. As the carrier of secure storage and encryption and decryption operation, terminal security mole can provide effective basic security protection for digital assets. Digital asset system trading platform blockchain technology research and development of data security technology, including data security transmission technology and secure storage technology. Data security transmission technology transmits digital asset information through ciphertext + MAC / ciphertext + hash to ensure the confidentiality, security and non tamperability of data information; Data security storage technology stores digital currency information by means of encryption storage, access control, security monitoring, etc., to ensure the integrity, confidentiality and controllability of data information
transaction security technology includes anonymous technology, identity authentication technology, anti plicate transaction technology and anti-counterfeiting technology. Anonymity technology realizes controllable anonymity of digital assets through blind signature (including blind parameter signature, weak blind signature, strong blind signature, etc.) and zero knowledge proof; The identity authentication technology verifies the user's identity through the authentication center to ensure the validity of the digital asset trader's identity; The anti plicate transaction technology ensures that digital assets are not reused by means of digital signature, serial number and time stamp; Anti counterfeiting technology ensures the authenticity of digital assets and transactions by means of encryption and decryption, digital signature and identity authentication. Secondly, the online transaction and offline transaction of digital assets are realized by transaction technology. Digital asset trading technology mainly includes online trading technology and offline trading technology. As a legal currency, digital assets should not be rejected by any unit or indivial, and can be traded online or offline. Online transaction technology realizes online transaction of digital assets through online device interaction technology, online data transmission technology and online transaction processing; The off-line transaction technology realizes the off-line transaction of digital assets through the off-line device interaction technology, off-line data transmission technology and off-line transaction processing technology. Finally, trusted guarantee technology is used to provide a safe and reliable application environment for the issuance, circulation and transaction of digital assets in blockchain. Digital asset trustworthiness assurance technology mainly refers to trusted service management technology. Based on trusted service management platform (TSM), it ensures the security and trustworthiness of digital asset security mole and application data, and provides security chip (SE) and application life cycle management function for digital asset participants. Trusted service management technology can provide application registration, application download, security authentication, authentication management, security evaluation, trusted loading and other services for digital assets, which can effectively ensure the security and credibility of digital assets system
what is blockchain? Blockchain technology, also known as distributed ledger technology, is an Internet database technology, which is characterized by decentralization, openness and transparency, so that everyone can participate in database records. Blockchain technology development blockchain technology development what is a blockchain system? Blockchain system is a database system with integrity. The data written into the system will be automatically copied to the nodes of the blockchain, which can achieve transactional data preservation, support the management and development of databases in various instries, and be proced in combination with various needs. 294.497 billion US dollars, or 2.60%. This week, five new projects entered the top 100, namely FST, ZB, Wix, wax and MXM. On August 11, the price of bitcoin was $11523.58, up 3.20% from last week, and Ethereum was $216.09, down 3.86% from last week. The 24-hour turnover of this week increased by 2.63% over the same period last week; Among the top 100 projects, the total market value and average market value of currency projects increased significantly, and the classification composition of global blockchain assets top 100 projects was stable.

2.

I haven't heard of this exchange. Coin an, fire coin and OK are well-known exchanges in the currency circle, as shown in the figure below:

blockchain is the core supporting technology of the digital cryptocurrency system represented by bitcoin. The core advantage of blockchain technology is decentralization. It can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the common high cost, low cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions

the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry

3. In fact, in our lives, we use the money in the digital money Alipay, the money in the bank card, and the risk of choosing a good platform is not great. DCPRO is very suitable.

4. The password for the

payment code, that is, the Alipay payment code, can be reset in Alipay - settings security center payment settings - payment password. The specific steps are as follows:

(1) enters Alipay's home page. Br />

when the user pays the payment code "face to face pay", it can complete payment within a certain amount without entering the password. Alipay will dect the amount from the user's assets (the payment channel depending on the circumstances) according to the amount determined by the merchant.

in the case of hotel, leasing and other businesses requiring deposit, when using "face-to-face payment" for payment, it is agreed that businesses can limit part of the assets (the dection channel depends on the situation) as deposit, and authorize businesses to dect the final consumption amount (including liquidated damages, if any) from the deposit assets, and release the remaining deposit at the same time

the foregoing restrictions include the freezing of Alipay account funds, the freezing of the monetary fund shares corresponding to the corresponding treasure service, the freezing of the quota of flowers, and the freezing of the funds of Alipay's bank cards after being withheld. br />

5.

Big non farm, refers to the U.S. non farm employment data, released on the first Friday of each month, which is the official data

Non agricultural data, also known as non-agricultural data, is a data index reflecting the employment status of non-agricultural population in the United States released by the Bureau of labor statistics of the U.S. Department of labor. It belongs to the official data, including the number of agricultural employment, employment rate and unemployment rate. The release time is the first Friday of each month

< H2 > extended data:

non agricultural data refers to the number of non-agricultural employment, employment rate and unemployment rate. It is divided into pre value, expected value and published value. As the name suggests, it is a data indicator reflecting the employment status of the non-agricultural population in the United States

the three data are released at 20:30 Beijing time (summer time: April October) and 21:30 (winter time: November March) on the first Friday of each month. The data is from the Bureau of labor statistics of the U.S. Department of labor. Non agricultural data can greatly affect the dollar value of money market

6. The first is broadcasting rights. It sold 7300W this time. Second, there are 13 exclusive sponsors. Because it's confidential. I don't know how much. But if you think about it, a 2000W can't run. Third, tourism efficiency,. South Africa's own tourism bureau said 2200W foreign tourists came to see the ball ring the world cup. The fourth is to publicize South Africa. I think there must have been some people in this country who didn't know it before, but now they do. Fifth, enhance the national image. Our country has held it. You haven't held it. How wonderful we are

South African media quoted the annual evaluation report of the International Monetary Fund (IMF) as saying that the economic growth rate of South Africa in 2010 may be close to 3%. Among them, the world cup will bring 0.5% economic growth to South Africa< In 2009, under the al influence of the international financial crisis and the world economic recession, South Africa's economy fell into the first recession in 17 years. In the first two quarters, the economic growth rates were respectively negative 1.2% and negative 2.8%. In the first few months of 2010, all indicators of South Africa's economy rebounded, indicating that South Africa's economy is in a positive recovery. IMF also predicted that in the next two or three years, South Africa's economic growth will still be lower than the potential level of 4.5%, so the South African government still needs to continue to implement various economic support policies

recently, business week pointed out that South Africa is the undisputed engine of Africa's economic development, accounting for 39% of the continent's GDP. The financial crisis has brought some impact on South Africa. The unemployment rate has risen from 22% in 2008 to 24%. However, it is gratifying that South Africa's economy has rebounded. At the end of 2009, South Africa's economy began to grow again, with tourism revenue reaching 27 billion US dollars. The world cup will provide an opportunity for South Africa to break out. Although South Africa has spent 2.6 billion US dollars to build stadiums, improve transportation facilities and arrange opening and closing ceremonies, it can get rich economic returns

in addition, Brazil, one of the BRICs, has been designated as the host country of the 2014 World Cup and 2016 Olympic Games. Goldman Sachs recently released a report that Brazil's economy is booming. After being seriously questioned at the beginning, Brazil is increasingly recognized as a member of BRICs with strong economic foundation

it is reported that among the BRIC economies, Brazil may never be as eye-catching as China or India, because the population of the latter two countries exceeds 1 billion. However, with a population of 193 million, Brazil is the fifth most populous country in the world, second only to China, India, the United States and Indonesia. In addition, in the latest annual growth environment scoring system of Goldman Sachs, Brazil has the highest score among the BRICs. This world cup, even if not counting the ticket revenue, only relies on the television broadcast authorization fee and the franchise sponsorship fee. This is the most profitable world cup in FIFA history, which will reach more than 3 billion US dollars, 14% of which will be allocated to the teams and clubs< However, FIFA has ushered in the climax of its business model amid complaints

in the rules of the business game of the world cup, FIFA and LOC (South African Organizing Committee) do not need to pay for the stadium infrastructure construction directly, but LOC will return part of the ticket revenue to the city (or the owner) where the stadium is located as the rental of the stadium

in fact, the ticketing situation of the world cup in South Africa is not optimistic. According to local media reports, two months before the opening day of the world cup, 650000 of the 2.95 million tickets were not sold, accounting for about 22% of the total. FIFA official figures show that of the 570000 tickets allocated to 31 non host countries, 330000 have not been sold, with a lag of 58%<

however, even if not counting the ticket revenue, it is the most profitable FIFA World Cup in history, which will reach more than 3 billion US dollars, 14% of which will be allocated to teams and clubs

the amount of bonus subsidies for the world cup in South Africa has increased to a record $420 million, an increase of 61% over the previous one. In the total bonus of 420 million, the winner of the world cup in South Africa will get $30 million. Even if the team does not win a group match, it will also get $9 million in dividends

in addition to TV revenue, FIFA will also obtain huge commercial benefits from six partner enterprises and some world cup sponsors. It is understood that the lowest threshold for sponsors of this world cup is set at the highest point of 65 million US dollars in history. Even so, there are still a lot of companies that want to squeeze into the ranks. At present, the video instry, which is plagued by policy, right and financial problems, urgently needs to find a breakthrough. When the world cup in South Africa is still one month away, China's Internet video instry has risen to smoke. In just one week, at least seven websites scrambled to announce cooperation with CCTV's China network television station, CNTV, Announced that won the "South Africa World Cup" network broadcast right, opened the broadcast battle curtain. This carnival in June will allow China's online video enterprises to complete the initial shuffle

it is reported that CCTV has exclusive rights to video, mobile phone and new media (including Internet, mobile phones and all other new media platforms) hosted by FIFA in Chinese mainland ring the two World Cup in 2010 and 2014. At present, CNTV has the exclusive right to broadcast the 2010 South Africa World Cup on new media in mainland China, including but not limited to the opening ceremony, closing ceremony, competition events and activities derived from the competition. Any Internet company that wants to broadcast the world cup program must cooperate with CNTV

as this year's world cup is held in the African continent for the first time, most of the procts on the market are not well ordered e to price problems. However, the reporter learned that people in the instry are still optimistic about the long-term effect of the world cup and the attraction of African tourism. Some experts predict that the world cup will promote the upsurge of tourism, and will have a long-term driving effect after the game, especially for Africa, an emerging tourism destination that holds the world cup for the first time. The world cup in South Africa is expected to become a landmark event in the development of African tourism, and the growth of Chinese tourists to Africa is expected to accelerate< From the perspective of historical experience, hosting World Cup Football Championships, Olympic Games and World Expositions has played an important role in promoting the development of tourism in host countries and regions, and even has become a turning point in the development of tourism instry< According to the statistical data, the number of tourists to Germany in the 2006 World Cup exceeded 2 million, and the tourism revenue increased by 7% in that year. After the world cup, the inbound tourism in Germany continued to grow, with a growth rate of nearly 10% in 2007. During the 1988 Seoul Olympic Games and several years after the games, the number of inbound tourists in South Korea increased by double digits, which became the turning point of South Korea's tourism instry

and the tourism revenue benefits brought by the Olympic Games are even more amazing. In 2000, when the Sydney Olympic Games was held, Australia's inbound tourists set a historical record. After the Olympic Games, inbound tourism still grew rapidly. After the successful hosting of the Olympic Games in 2008, Beijing's tourism instry has achieved a leap forward growth. In 2009, the total number of tourists received was 167 million, a year-on-year increase of 14.5%. The bird's nest and water cube have become Beijing's new landmarks and the most attractive tourist attractions. According to the forecast of Beijing Olympic Economic Research Association, China's tourism instry will continue to benefit for at least 10 years after the Beijing Olympic Games<

"the benefits of the world cup in South Africa are optimistic

" the high price of tourism procts for watching the world cup in Africa does limit tourists, but we are still optimistic about the driving effect of the world cup on tourism. " Tang Yibo, director of tourism business of ctrip.com, believes that compared with the short-term direct benefits, the long-term tourism effect of the world cup deserves more attention

Tang Yibo believes that the long-term tourism effect of the world cup is mainly reflected in improving the international popularity of tourism destinations, shaping and improving the international image of tourism destinations, improving the soft and hard environment of tourism, and promoting the upgrading of tourism procts. For example, in the 2006 World Cup in Germany, more than 10 billion people in China watched the world cup on TV, and 30% of them were women who didn't watch football very often. The world cup in South Africa is the first time in history that the world cup is held on the African continent. It is expected that the television audience will reach 25 billion people, which will be the best historical opportunity to promote African tourism to the whole world

it is hoped that the world cup can change the marginalization situation that has not been paid attention to for a long time. African countries also attach importance to the world cup in South Africa to promote the development of tourism. South Africa's Ministry of tourism predicts that it will welcome 300000 foreign tourists, upgrading South Africa to one of the world's top tourist attractions. South Africa's World Cup bid committee predicts that this summer and the next two years, the world cup will bring 3.1 billion US dollars to South Africa's tourism instry. Tourism has become a pillar instry and a major foreign exchange earning instry in Kenya. Kenya Tourism Association recently said that Kenya's tourism instry will rebound sharply this year, and the growth rate of instry income is expected to reach 8% to 9%. The National Tourism Administration of Zimbabwe predicts that the tourism instry will have a great development driven by the football World Cup in South Africa. The number of tourists in 2010 is expected to reach 3 million to 3.5 million, and the contribution of tourism to GDP will increase to 50% by 2013<

China has become the potential market of African tourism instry

in the process of African countries marching into the tourism instry on a large scale, Chinese tourists have become the key target. In order to attract Chinese tourists, the South African Embassy in China officially opened indivial tourist visa this year, allowing Chinese tourists to visit South Africa in their own name. On May 24, the Beijing Office of South Africa Tourism Administration was established in Beijing. Ndegwa, the new director of Kenya's National Tourism Administration, who has come to Shanghai to attend the Shanghai World Expo, also said recently that the number of Chinese tourists visiting Kenya is the fastest growing, and the Chinese market will become Kenya's most valued market in Asia. It is expected that the number of people who book trips this year will more than double that of last year

taking advantage of the world cup, many travel agencies are also optimistic about the tourism market in Africa, adding a variety of team tour and semi self-service tour procts, and African tour is becoming more and more rich and personalized. The head of the outbound Department of Shanghai CYTS told reporters that from April and may this year, it has clearly felt that the African market is graally getting hot, and the proportion of tourists going to Egypt, South Africa, Kenya and other previously unpopular routes has increased by about 20% compared with previous years. Ctrip.com said that there are nearly ten kinds of procts in Kenya this summer, and procts from African countries have also appeared on the market for the first time. For example, the Kenya + Tanzania 14 day in-depth tour group visited seven famous national parks in East Africa once to experience Africa in an unprecedented depth< According to the statistics, the number of Chinese tourists to Africa is growing very fast, but the absolute number is small. In 2009, the number of Chinese tourists to Africa reached 380000, an increase of 18.5% year on year. In the first quarter of this year, there were 126000 Chinese tourists to Africa, an increase of 42%. Instry insiders predict that under the influence of the world cup in South Africa, the growth of Chinese tourists to Africa is expected to accelerate“ Africa is becoming more and more attractive to China