What network virtual currency and US dollar

3. In addition to bitcoin, there are many other virtual currencies in the virtual world< Liteoin (LTC) was released on October 7, 2011, and is currently the most valuable counterfeit currency, accounting for about 2% of BTC's market value. The current unit price is US $2.31, with a total currency value of US $38 million

this is also a distributed (decentralized) digital currency. Unlike the sha256 mining algorithm used by bitcoin, LTC adopts scrypt algorithm. Scrypt algorithm uses sha256 as its subroutine, and scrypt itself needs a lot of memory. Each hash is used as the seed of the input, and then it needs a lot of memory to store another pseudo-random sequence to generate the pseudo-random points of the sequence and output the hash value. In the mining of BTC (bitcoin), it is not enough to rely on simple graphics card mining (it takes about ten to dozens of days to dig a BTC with general configuration graphics card). The emergence of various expensive mining machines has raised the threshold for ordinary people to get BTC through mining, while LTC has certain advantages in using PC graphics card mining This passage comes from Zhihu.)

compared with BTC, litecain has made a little improvement in technology. If BTC is gold now, LTC is silver for the time being

the biggest advantage of litecoin is that it can confirm the authenticity faster. The virtual currency is designed and maintained by Charles Lee. Bitcoin transactions need to be verified, and the average verification time is more than 10 minutes. Most transaction websites need 1 hour to verify. The average transaction confirmation time of liteoin is 2.5 minutes. Developers claim that shortening the verification time increases the practicability of virtual currency. The bitcoin mining efficiency of customized machine and AMD GPU is the highest, making it almost unprofitable for miners using CPU mining. Litecain's mining excludes GPUs and custom processors, so it doesn't rely too much on a small number of professional miners

ppcoin

ppcoin (PPC) was released on August 19, 2012, which has improved the original technology of BTC. Use proof of make and add the concept of coin age

ppcoin is a bifurcated project of bitcoin, which aims to achieve energy efficiency and maintain the best performance of the original bitcoin as far as possible. The unit price of ppcoin is US $0.22 and the total currency value is US $4 million

ppcoin does not have a fixed upper limit of money supply, but it does not mean that ppcoin has obvious inflation compared with bitcoin. Bitcoin can be compared to gold. The annual inflation rate of gold is about 1-3%. Although gold has no known upper limit of money supply, we still know that it is a reliable scarce commodity

ppcoin has two types of casting: work certificate and equity certificate. The coinage rate of working proof is affected by Moore's law, which depends on the doubling of our working proof ability. What we all know is that Moore's law will eventually come to an end. By then, the ppcoin of inflation may be close to the gold level. The annual maximum inflation rate of certificate of equity is 1%. At the same time, ppcoin's transaction costs were destroyed to fight inflation. So on the whole, the coin design of ppcoin is still a very low inflation design in the future, which can be comparable with bitcoin<

ppcoin's reward is similar to lottery, which will determine the winning probability according to the number of ppcoin held by miners. Sunny king, one of the founders, said that their design is based on a new concept of long-term energy efficiency

terracoin

terracoin (TRC) was released on October 26, 2012, with a total currency of 42 million. The speed of each block is 2 minutes, slightly faster than LTC. There is not much special in technology, similar to the proction of BTC halved every four years

however, the operation team seems to have a strong business background and may be better than other bitcoins in circulation. The development of virtual currency is getting more and more attention. Now some teams with business background will accelerate the development of virtual currency

namecoin

namecoin is a distributed domain name system based on bitcoin technology. Its principle is the same as bitcoin. The first release date of this open source software is April 18, 2011

namecoin is generated from an original block which is different from bitcoin's main trading block. It uses a new blockchain, which is independent of bitcoin's blockchain. Because it is based on bitcoin, the security, distribution, robustness, encryption and migration of domain names are guaranteed mathematically. You can dig bitcoin and namecoin at the same time

this project was discussed and proposed by bitdns, which is mainly dissatisfied with the defects of DNS. The only top-level domain name of namecoin is. Bit. It costs namecoin to register a. Bit domain name

in addition, Q currency, Shanda currency, starting point currency and various online game currencies are also virtual currencies.

4.

1. The essence of interpretation is different:

virtual currency: virtual currency refers to non real currency

currency: currency (CCY) is the medium of purchasing goods and preserving wealth. It is the contract between the owner of property and the market about the right of exchange. In essence, it is the agreement between the owners

2. Different types:

virtual currency: game currency, special currency, etc.

currency: coin, paper currency, deposit currency, etc.

extended data:

formation of virtual currency market:

Internet leads to the emergence of a new market, which is a virtual market based on cyberspace. The Internet provides a lot of communication places for consumers, and also provides business market for enterprises. Enterprises must change from proct centered to service centered to customer centered

with the development of computer artificial intelligence technology and database technology, enterprises can conveniently collect customers' information, understand customers' needs in time, change business strategies and grasp economic arteries in real time

5. Q currency can be converted into RMB on the Internet
virtual currency originally refers to non real currency, which is used in games. Of course, the money in the game is real or fake
virtual currency is usually used to purchase procts and services provided by currency Issuers (i.e. service providers), which are real< The Ministry of Culture issued the notice on Further Strengthening the management of Internet cafes and online games, which pointed out that the total amount of virtual currency issued by online game business units and the purchase amount of indivial online game consumers should be strictly limited; The virtual currency issued by online game business units can not be used to purchase physical procts, but can only be used to purchase virtual procts and services provided by themselves; If consumers need to redeem the virtual currency as legal tender, the amount shall not exceed the original purchase amount; It is strictly forbidden to resell virtual currency. Those who violate the above provisions shall be punished by the people's Bank of China in accordance with Articles 32 and 46 of the law of the people's Bank of China. Thus it seems that the legitimacy of the virtual transaction is recognized, and the virtual currency gambling transaction can not be carried out. The equipment is proced by oneself, which should be regarded as labor income.

6. The frog's route is from the river to the pond. If they gather in a lot, the route should be blocked by a certain building. You can check the nearest pond, and then move the buildings on the route, so that the frog can continue to move forward until it reaches the pond.

7. Just sit under Tumen. Tumen is very small. All the primary schools gather together to ask

8.

According to the definition of the European Central Bank in 2012, "a kind of digital currency that is not legally binding, issued and controlled by developers, and accepted and used in specific virtual community members."

at the 2013 congressional hearing, Federal Reserve Chairman Ben Bernanke said that "in the past two decades, virtual currency has been regarded as an electronic currency, or a payment system technology field that has been developing."< In 2013, the financial crime enforcement network (FinCEN) of the U.S. Department of the Treasury defined it as: "virtual currency is a medium of exchange that operates like real currency in some environments, but it does not have all the attributes of real currency." It also has no legal tender status. In 2014, the European Banking authority defined it as "a digital form of value that is not issued by central banks or government departments and is not necessarily associated with legal tender, but it is accepted by natural and legal persons as a means of payment and can be transferred, stored and traded electronically

in Chinese mainland refers to the currency that runs on the Internet, and the famous virtual currency, such as Tencent Inc's Q coins and the grand company's roll, also has virtual currency in online games. Virtual currency is usually used for users to purchase virtual services on the network, such as QQ membership function of Tencent's QQ coin, online game equipment, etc. Virtual currency is usually a means of payment. For example, the Ministry of culture of the people's Republic of China defined it in 2009 as a virtual exchange tool that is issued by online game operators, directly or indirectly purchased by game users using legal tender in a certain proportion, existing outside game programs, stored in servers provided by online game operators in the form of electromagnetic records, and expressed in specific digital units

data source: virtual current from Wikipedia

9. Theoretically, it can. Bitcoin networks have been able to handle a much larger number of transactions per second than they currently do. But it's not fully mature enough to scale up to major credit card networks. The work to raise the current ceiling is in progress, and the future needs are very clear. From the beginning, every aspect of the bitcoin network

10. As a matter of fact, all countries are cautious, and not many countries have expressed their support. Some countries have made it clear that they are illegal
however, the development of things is not transferred by anyone's will. In the future, digital currency must go to zero, only with artistic value and commemorative value
the technology of digital currency will be adopted and used for reference by sovereign currencies to develop their own digital currencies
digital currency has its own value among the people, which is used to circulate and finally to perish
from the perspective of businesses, those who receive digital currency basically immediately cash in the equivalent currency, and do not hold it for a long time. We can see that there are several worries. First, bitcoin and other currencies fluctuate too much, and the risk is uncontrollable, which is not concive to the expected income; Second, I'm not optimistic about the future of virtual currency. It's just a channel to increase revenue