MasterCard digital currency

1.

The differences between visa card and UnionPay card of China Construction Bank are as follows:

1. Different definitions

UnionPay card refers to the bank card that meets the requirements of unified business specifications and technical standards and is printed with the word "UnionPay" in the designated position. Most card numbers start with "62". According to the relevant person in charge of the people's Bank of China, the bank card with the "UnionPay" logo must comply with the unified business norms and technical standards stipulated by the people's Bank of China and be approved by the people's Bank of China

Visa card was issued by Visa International since the end of 1982. Its predecessor, Bank of America, was founded in 1959 and issued bank of America Card in California, USA

2. The scope of application is different.

visa card can not be used in China. It can only be used in POS machines with visa logo abroad. It is more cost-effective to use visa card abroad. UnionPay card supports domestic and foreign POS machines with UnionPay logo. UnionPay is a legal bank card organization in China, but in the international market, the card supporting visa and MasterCard is the mainstream. In order to use the card conveniently, UnionPay can be used in China, and visa can be used in other countries

3. Different card organizations it belongs to. Headquartered in San Francisco, California, USA, it is now operated by international credit card service company, which connects indivials, enterprises, financial institutions and governments in more than 200 countries and regions around the world through fast, safe and reliable digital currency

UnionPay is operated by China UnionPay Co., Ltd., the full name of which is China bank card association, with its headquarters in Shanghai, China. As China's Bank Card Association, China UnionPay is at the core and hub of China's bank card instry. Overseas, the acceptance network of UnionPay has extended to more than 160 countries and regions, with more than 23 million merchants

extended information:

overseas cash withdrawal

in China, UnionPay RMB card withdraws cash overseas, except that each card does not exceed the equivalent of RMB 10000 per day, an annual limit is added

since January 1, 2016, the cumulative withdrawal of each UnionPay RMB card in China shall not exceed the equivalent of RMB 100000. During the period from October 1 to December 31, 2015, each card shall not exceed the equivalent of RMB 50000

The issuing bank may set a separate limit for the credit limit and other reasons. For details, please consult the issuing bank. Each country and region outside the country has different restrictions on the amount of a single ATM withdrawal, and the specific restrictions are subject to the local machine prompts

2.

International credit cards can not be used directly in Shenzhen. It is necessary to hold a license to operate the bank card settlement business in China, but visa, JCB, MasterCard and other international credit cards do not have a license in China, so the single standard cards issued in China cannot be used in China

if you want to use an international credit card in Shenzhen, you need to withdraw the fund of the card in the bank. However, it should be noted that when withdrawing the international credit card in China, the bank will convert the euro or pound sterling into US dollars, which may cause some expenses e to the exchange rate difference

extended data

precautions when using international credit cards

1. Adjust the credit card limit

generally, the credit card limit given by the bank is relatively large. For example, my credit card limit is close to 20000 yuan, and I usually can't use so many credit lines, If the credit card is lost, it will cause a lot of unnecessary losses, so indivials can manually adjust the credit card limit

for example, set a limit in the credit card limit adjustment in the online banking professional edition of China Merchants Bank. In this way, the consumption limit of the credit card will be limited to this limit, and the risk will be much smaller. When more limits are needed, you can manually modify them back

2. Turn off the ATM withdrawal function of the credit card

3. Signature is more secure

it is the mainstream of international banking instry to use signature as the consumption voucher of credit card. From the perspective of security, this kind of credit card can be consumed only by signature without password. Especially through online banking, it is likely to be stolen as long as the name, card number, credit card expiration date and query password of the cardholder are known, Therefore, many domestic cardholders believe that passwords are more secure than signatures

however, there are some disadvantages in using passwords, that is, the responsibility for keeping passwords is transferred to the cardholders, which means that they are "responsible for the loss". Once the credit card is falsely used, the rights and interests of the cardholders who use signatures can often be better protected and compensated

3. Dog money has been out for several years. The value of digital money lies in the number of people it participates in and the volume of transactions, as well as the liquidity in the entity. The real decentralization of digital money also determines that its price is determined by the market and players! I also bought this one, so I can communicate with you

4.

So far, digital currency MCC has been issued for nearly 10 months

< H2 > about MCC < UL >

Chinese Name: xingyunbi

time of issue: September 6, 2017

online exchanges: 4

< / UL >

5. In fact, I don't think there are any special requirements for acting as an agent. The simplest thing is that you can become an agent as long as you have the customer resources (interested in digital currency)

6.

1. Learning conditions:

level above 45, each player can only learn two life skills at the same time. If you reach level 90, you should be able to learn the third life skill

7.

Remember the guy who accidentally threw away the hard disk with a lot of bitcoin as garbage? Well, he made the headlines again recently, and the recent surge in the price of bitcoin has inspired him to look for his treasure again. He was ready to make his hands dirty & hellip& hellip; Dig a landfill

Although this is the largest known case of bitcoin loss, Howells is not the only one to encounter this tragedy. Another story is that Campbell Simpson, an editor at Gizmodo Australia, threw away about 1400 BTC. When he bought the bitcoin, he spent only a $25. Today, these bitcoins are worth as much as $16 million

However, the person who lost the most bitcoin may be the founder of bitcoin himself. According to recent research by chainalysis, the 1 million bitcoins held by Ben Cong, the founder of bitcoin, are likely to never enter the broader market. It is believed that these bitcoins are scattered in the counting wallet, and their owners have either lost their private key or died. If the founders of bitcoin are still alive, they will either perfectly embody the dictionary's definition of & quot; Holder & quot;, Or someone more tragic than Campbell Simpson or James Howells

8. Huang Lianjin: first of all, the acronym of a-b-e-y means "advanced blockchain for enhanced yields". It came out in 2018. The main purpose of abey is to improve the operation efficiency of blockchain in essence, so that this revolutionary technology can be truly popularized on a large scale

as we all know, the biggest bottleneck restricting the popularity of blockchain has been its slow transaction speed. Bitcoin can only process seven transactions per second, while Ethereum can only process up to 20 transactions per second. Therefore, after bitcoin has existed for more than 10 years, most people have only heard of blockchain, but they seldom use this technology

abey is developed to solve the problem of low efficiency of blockchain and difficult to popularize in a large area. It is an independent public chain. Abey adopts a unique chain governance and chain architecture. Abey, for example, is looking at how to use only 50 active blocks in the chain. When a new block is created, the oldest block is removed from the end of the chain. But its data will still be preserved and archived. If this architecture is successful, the whole chain will be shorter, lighter and more responsive. Abey takes an average of 2 minutes to create a new block. Many studies have proved that this is close to the optimal time for block generation - abey is much more efficient than traditional blockchain Technology (such as bitcoin)< Second, it's very interesting. As you mentioned just now, the operation efficiency of blockchain and Ethereum is relatively low. So what level can abey reach<

Huang Lianjin: theoretically speaking, abey's transaction processing efficiency can continue to expand with the needs of users. The change in efficiency will also depend on the type of actual use case. For example, the first use case built on the core of abey blockchain is the apay systems payment services (a payment) platform. According to the project side, its current efficiency has exceeded the speed and throughput of visa / MasterCard credit card system

in terms of function, the apay platform supports the instantaneous conversion of bitcoin, Ethereum, bitcoin, cash and Leyte into a stable currency called Act (or acash) (linked to the value of the US dollar). Once the user obtains the act, it can be used to trade with other apay users

in addition, users will soon be able to enter the act into the apay encrypted debit card, and then they can consume at any merchant (online and offline) receiving visa / MasterCard, and withdraw legal tender from any ATM in the world. Apay's goal is to become a bridge between cryptocurrency and the real world, bringing cryptocurrency into the mainstream business world< In this way, apay will promote the large-scale application of blockchain technology in e-commerce. Besides, what other achievements does abey team take pride in

Huang Lianjin: abey constructs a loose coupling intelligent contract execution architecture. This means that people can use any programming language or compiler to develop smart contracts on the abey platform. In contrast, developers will not need to be limited to the development restrictions in Ethereum ecology, which will reshape the way smart contracts are built and run in the blockchain

the first smart contract in abey ecosystem is written in C language (C language ranks top three among the most common programming languages in the world). At present, there are more than 5.4 million known C and C + + language developers around the world – compared with less than 10000 solid language developers in the Ethereum ecosystem. In 5-6 years, the expansion rate of Ethereum ecosystem's developers is still expected to be relatively slow.

9.

1. Radar is a popular blockchain application platform in China, and radar wallet is a popular blockchain international wallet< The br />

2. radar wallet is like the global Alipay. As long as the deposit is in the purse system, it will be presented to the radar money every day, and it will be compound profit and profit on the day. The annual revenue will be as high as 300%.

3. To put it more simply, it is similar to MasterCard, except that the traditional bank card is legal currency for deposit, withdrawal and transfer, such as RMB, US dollar, pound sterling, etc., while the radar wallet can not only deposit, withdraw and transfer legal currency, but also deposit, withdraw and transfer digital currency

4. In addition, digital currency in radar wallet is equivalent to financial management. Of course, you can also transfer money online or exchange (various currencies) to earn the price difference. The premise is: must be able to operate! Simultaneous interpreting, like traditional bank cards or Alipay, will not save money and make money transfer. p>

< H2 > extended materials:

radar currency is an internet financial tool, which helps users to pay, transfer and freely convert global currency simply, quickly and at low cost

is a kind of virtual currency, which, like reborn and bitcoin, is secure through three technologies: open source, decentralization and no central server

has the property of currency, and is also a financial trading platform, which can break financial barriers and prevent inflation; Stronger connectivity, opening up the global financial Island, recing the resistance of the financial system, enhancing efficiency, and building a global unified Internet financial system

10. The role of Internet Finance in E-commerce