The rise of IMF digital currency
digital currency is an alternative currency in the form of electronic currency (which can be used for real goods and services transactions)
digital currency has the main characteristics of network packets. This kind of data packet is composed of data code and identification code. The data code is the content we need to transmit, while the identification code indicates where the data packet comes from and goes
based on the characteristics of digital currency, the direct benefit of digital currency to the central bank is not only to save the cost of note issuance, circulation and settlement, but also to enhance the central bank's ability to control funds
Electronic money and virtual money are called digital money. According to the definition of the European Central Bank, virtual money is issued by non central banks, credit institutions and e-money institutions, which can be used as the numerical expression of the value of currency substitutes in some cases{rrrrrrr}
extended information:
the process of digital currency trading through the platform is as follows:
(1) investors should register accounts first, and obtain digital currency accounts and US dollar or other foreign exchange accounts at the same time
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buying requests and selling requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) e to the difference between the buy and sell volumes submitted by users, a buy or sell request may be partially executed
the creation of digital currency
the origin of digital currency can be traced back to the 1990s, and electronic gold is one of the best forms. E-gold came out in 1999. It is based on real precious metals. Another consistent digital currency service is LR. Founded in 2006, it is an online payment company in Central America. It allows users to convert U.S. dollars or euros into LR, and only 1% of the transaction cost can be exchanged freely. This kind of two-way service is used by some people to launder money, so it is inevitably shut down by the U.S. government under the charge of money laundering
then, a person named Nakamoto published an article called "bitcoin: a peer-to-peer e-cash system" in the cryptography forum, which gave birth to bitcoin. Compared with legal currency, bitcoin does not have a centralized discoverer, but is generated by the calculation of network nodes, and is composed of a series of complex codes generated by computers. Anyone can dig, buy and sell bitcoin, and it is an anonymous transaction and cannot be tampered with. As a result, it is surrounded by geeks of popular technology, pursuers of complete liberalism and speculators
digital currency can be divided into open mining cryptocurrency and issuing cryptocurrency. Digital currency is defined as an Internet-based currency or exchange medium, which is different from physical currency. Digital currency can realize instantaneous transaction and ownership transfer without borders
for reference.
(1) when wearing a watch, the sweat on the hand is corrosive to the watch case. The all steel case has better corrosion resistance because it is made of nickel chromium alloy, and the half steel case is made of copper. It is easy to corrode e to long-term contact with sweat. It is necessary to wipe away the sweat with a soft cloth or pad a plastic watch holder to prevent it from being eroded by sweat
(2) do not open the back cover of the watch at will to avoid st entering the movement and affecting the normal operation of the watch
(3) do not put the watch in the wardrobe with camphor pills to avoid the deterioration of the watch oil
(4) don't put the watch on the power amplifier, stereo or TV to avoid magnetization
(5) the watch that is not worn for a long time should be wound once a month, while the watch with automatic movement should swing back and forth for a few minutes or be worn on the wrist for a period of time to make it wind up automatically. So that the parts will not be at rest for a long time to ensure the operation performance of the meter machine
(6) if an ordinary mechanical watch is wet, dry cotton can be pressed on the watch and baked with 40 Watt electric bulb for 5 minutes, then the moisture in the watch will be evaporated completely. If the quartz electronic watch is damp, a few small pieces of calcium chloride can be taken and wrapped with gauze; Then open the cover of the electronic meter, put the wrapped calcium chloride and the electronic meter into a plastic bag or glass bottle without air leakage, and seal them. Generally, the moisture can be removed in about 3 hours to make the electronic meter return to normal. For the surface seriously affected by moisture, the time of absorbing moisture can be extended appropriately
(7) when the watch is received and the outer package is removed, the box used to protect the watch must be kept. These watch protection boxes can provide the safest protection for the watch when it is not fit to wear, so it is absolutely necessary to keep the box. It is suggested that when the watch is not worn on weekdays, we should form the habit of putting it in the box, which can greatly rece the risk of watch damage
(8) it's better not to wear the same watch every day, but to prepare several different watches for alternate use. In addition to enriching personal modeling, it can also avoid st and body dirt all concentrated on the same watch. For leather watch strap, more care should be taken to avoid frequent wear and tear caused by daily use. Even if the surface is new, the watch will look very old
(9) don't sleep with your watch on your wrist. If your watch is a luminous watch, it will bring adverse effects on your body. This is because the luminous material on the pointer and dial of the luminous watch is mainly a mixture of radium and zinc sulfide. The ray emitted by radium can stimulate the crystal of zinc sulfide to emit light. When you sleep, if you wear a watch, your body will be exposed to radium radiation for eight to nine hours, which is harmful to your body. Therefore, before going to bed, it is best to take down the luminous meter and put it on the table
(10) surface modification. After many lines have been scratched on the watch cover, you can first drop one or two drops of water on the watch cover, and then squeeze a little toothpaste to wipe it. Then you can remove the lines and make the watch cover look like new.
digital currency is a kind of unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form.