The virtual currency is cheap

2. At present, bitcoin, Leyte coin, doggy coin and reborn coin are more reliable. Whether these virtual coins are reliable depends on whether the trading platform is reliable. The territory kingdom is jointly supervised by the FSP of New Zealand and the NFA of the United States. It has a stable trading system. Investors can make profits by buying up and buying down, and can trade once every five dollars.

3. In fact, the problem is that although we now know three important application cases of licensed bitcoin blockchain (provenance, enterprise record keeping and microfinance), we have not been able to find a substitute for Ethereum smart contract. This is not to say that people don't know what they want smart contracts to help them achieve, but because many ideas can't be realized at all.

4. First of all, let's talk about the prices of various companies

each express company has different pricing for different weight of goods
if you want to take small goods and don't need time, I suggest you choose EMS (express mail service, which was founded by the Universal Postal Union) because the price is the cheapest
if you want to be fast, you can see which country, the United States, Canada, South America, and the United Kingdom. The fastest in these regions are ups (UPS was founded in the United States as a courier company in 1907) and DHL (Sinotrans DHL was founded by China foreign trade and Transportation Corporation and DHL Global Express in 1986)
but there is still a difference. For goods under 5.5kg, DHL is cheaper. For goods under 6kg to 21kg, UPS is much cheaper than DHL. From 21kg to 100kg, DHL is cheaper than ups. From 100
kg, ups will be cheaper than DHL

now let's talk about TNT. TNT is the largest express company in the Netherlands, and its customs clearance capacity in Western European countries is stronger than DHL, ups and EMS. But in terms of price, it is much more expensive than other companies. If you need to send some more important goods, but also fast, strong customs clearance, but not afraid of expensive words, I suggest you choose TNT

finally, FedEx, in Southeast Asia, can be said to be the top four companies, regardless of price or speed
the price of FedEx is equal to half of that of DHL and UPS, but the transportation speed is the same, so please choose FedEx when you send 21 kg goods to Southeast Asia
the disadvantage of FedEx is that Western Europe, the United States and Canada, South America, Africa and the Middle East countries do not have the advantage in price and speed. In the above mentioned places, that is to say, for general express companies, FedEx has the ability to improve the service quality

now there are many other express companies in our country, such as Middle East Express, Japan's Sasakawa express, Korea Sanyou express, Air France express, and Shunfeng express to Hong Kong. Their advantages are unmatched by several major express companies. They are all local leaders in their own countries (regions), No matter the price, speed and customs clearance ability, they are superior to the four major companies

as for the amount of customs declaration, I suggest that you do not report the value to US $30 when you declare. Because if the value is higher, your foreign consignees will pay a lot of customs ties. And in terms of customs clearance will be more strict, often hold the goods, and then let your recipient show the relevant commercial invoice. So you can find an experienced express company to declare for you. It is also necessary to add that the biggest reason why we have to report the value below US $30 is that the customs of Western European countries will be more strict in checking the value of US $30 on small pieces of goods

however, EMS is our Chinese Localization Company after all. I must tell you that the biggest advantage of EMS is that no other company can match it, that is, when your goods are detained abroad, EMS can help you to transport them back free of charge. If other big companies want to help you transport back, they will have to charge more freight for the goods transported back from abroad. Moreover, there is no discount and the price is too high to understand. Besides, the service quality of EMS is the worst. The first is that the transportation time is very unstable and the price is also very low. It often takes more than n days to go to developed countries, and the feedback of goods delivery information on the Internet is also very slow. After surfing the Internet, it shows that there is no news about the expected flight that day after it is sent abroad, and you can't find it by calling 11185. TNT, ups and DHL are relatively punctual in time, and the feedback of goods information is relatively fast. They usually feed back to their own company's website at the first time, so I strongly recommend DHL, TNT and UPS as the first choice when transporting valuables. Don't use EMS.

5. Many of them are promising, but we must be careful about computer viruses
the Internet Security Report of computer housekeeper in the first half of the year. Tencent security mentioned that there are many viruses in the blockchain
you can install some antivirus software on the computer, such as computer housekeeper, and then keep it open all the time
in order to prevent viruses from entering the computer

6.

Briefly introce the application of blockchain technology in the financial field

1, the application of blockchain technology in the banking instry

the biggest feature of blockchain technology is decentralization, which will rece a lot of costs for the banking instry

First of all, decentralization means that there is no need for intermediary to establish trust mechanism between banking systems, which saves the cost of intermediary

Secondly, the development of digital currency will realize the real-time digital transaction of banks. For example, in bill transaction, bank's bill transaction always relies on the third party to realize the transfer of valuable documents. Even for electronic bill transaction, it also needs the information of central bank's ECDs system for mutual authentication. The blockchain technology can realize the point-to-point value transmission, which no longer needs centralized system control. This not only speeds up the bill transmission speed, but also reces the mistakes caused by human factors. The rection of process will naturally rece the demand of the bank for personnel and save the labor cost of the bank

Finally, it will also have an impact on clearing and settlement. The bank's clearing and settlement business has always been completed by the central settlement, with low efficiency. Settlement through blockchain technology will greatly improve the efficiency of banks

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blockchain technology also plays an important role in the cross-border payment business of banks. Today, with the highly developed global trade, cross-border payment is becoming more and more frequent. Banks often act as third-party services in cross-border trade, such as electronic transfer, asset custody and so on. However, cross-border payment generally takes about two days to get to the account, which is inefficient and reces the utilization rate of funds in transit. In the blockchain technology, both sides of cross-border payment can complete through the point-to-point way, realize all-weather payment and real-time arrival, thus speeding up the speed of clearing and settlement, and improving the efficiency of bank business processing

another feature of blockchain technology is de risking. Banks can establish their own blockchain, which can ensure that the transaction information and transaction records of bank customers are true and effective, and will not be tampered with arbitrarily. Banks can effectively identify customers' information, understand all aspects of customers' situation, identify abnormal transactions of customers, and prevent being cheated by customers, It can also detect illegal money laundering, transfer of funds and other criminal acts in time, so as to rece the cost of bank supervision

2, the application of blockchain technology in the insurance instry

blockchain technology also has incomparable advantages in the insurance instry. From the perspective of data management, the application of blockchain technology can effectively improve the risk management and control ability of insurance companies, including the risk supervision of insurance companies and the risk management of policyholders

the application of blockchain technology in the insurance instry can strengthen the internal risk supervision of insurance companies. Blockchain technology can record the daily operation process of insurance company on the node, realize the in-process control of the company's capital flow, investment situation, compensation amount and other business, and improve the company's risk management and control ability

in addition, the blockchain technology is safe, reliable and can not be tampered with at will, which ensures that the information obtained by the policyholder is true and effective, and enhances the risk management ability of the policyholder

3. Application of blockchain technology in the securities instry

under the operation of the smart contract, the buyer and the seller are automatically paired, and the settlement and clearing steps are automatically completed through the distributed digital registration system. The transaction records on the blockchain will not be changed casually, so the information entered has the effect of publicity in practice, so there will be no dispute about the confirmation of ownership in the stock exchange

in addition, blockchain technology makes the securities trading process more open and transparent. Through the blockchain technology, the securities instry does not need central institutions to operate and manage, nor does it need investment banks to underwrite, so as to realize real point-to-point transactions, rece the illegal behaviors such as the black box operation and insider trading in securities trading, and realize the effective supervision of the securities instry

4, blockchain technology and financial infrastructure

blockchain technology is a decentralized mechanism for value exchange, which will lead to earth shaking changes in the existing financial infrastructure characterized by centralization

collateral, collateral, stocks, bonds, derivatives and other assets usually need a trusted central authority to register or keep, while blockchain can record and save the data of these procts in a new way, which will have an impact on the registration system of these procts

through smart contracts, blockchain can receive and respond to information and value, automatically complete the transfer of value, and automatically complete transactions, clearing and settlement, which will impact the existing financial infrastructure such as the existing large value trading system, central securities depository, securities settlement and OTC derivatives trading

5. Application of blockchain technology in supply chain It is an effective guarantee of financing credit and transaction credit

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first of all, the blockchain can time stamp all the transaction data in the supply chain, which can not be tampered with at will. Even if the transaction data of a node can be tampered with, it can not cover the sky with one hand. Therefore, the blockchain solves the banks' doubts about the tampering of enterprise information. For some small enterprises, as long as the credit is good, the possibility of lending to the bank will be greatly improved

secondly, the information between upstream and downstream enterprises recorded in the blockchain, through effective integration, can not only provide support for enterprises in proction, sales and other links, but also for downstream enterprises to analyze customer preferences, so as to develop targeted services