The level of virtual currency

1. 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.

2.

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

3.

It is difficult to avoid the typical risks related to the payment system. In a specific virtual community, virtual currency payment activities have evolved into a "real" payment system, facing the typical risks related to the payment system: credit risk, liquidity risk, operational risk and legal risk. The nature, scale and ration of these risks largely depend on the design of the system or the degree of lack of liquidity. It is difficult for the network virtual currency scheme to avoid or control these risks. According to the core principles of important payment system (CP) issued by the bank for International Settlements (BIS), the network virtual currency scheme does not conform to most of the contents of CP, and does not belong to the systemically important payment system. Therefore, it will not cause or transmit shocks to the global financial system. At present, there is no systematic risk in the network currency system outside these virtual communities

2. Lack of corresponding supervision and protection mechanism

in the real economy, the central bank plays the role of lender of last resort and there is no default risk, so it can take actions in the case of payment crisis or unpredictable liquidity shortage to avoid chain reaction. In the network virtual currency scheme, network currency is not the settlement asset. Because network currency simply depends on the credibility of the issuer, it can not be widely accepted as a means of payment, so network currency can not be regarded as a safe currency. In addition, commercial banks are required to accept prudential supervision, which reces the possibility of default. The security of money in commercial bank accounts is higher than that of network currency. A fundamental risk of network currency is that the settlement institution of network currency scheme is not subject to any supervision, no institution is responsible for its behavior, and there is no investor / depositor protection mechanism, which causes the user to bear all the risks

(4) risk of absence of supervision generally speaking, supervision lags behind the development of science and technology. The network virtual currency program was established in the late 1990s, but it was not until 2006 that some government agencies in the United States began to analyze these programs. Due to the lack of supervision and the anonymity, invisibility and difficulty in tracking of its transactions, the network virtual currency scheme is easily used by terrorist activities, fraud, money laundering and other illegal activities. At present, many government departments in many countries are considering whether to recognize or legalize these virtual schemes and bring them into the scope of supervision, so as to support the innovation of currency and payment forms, protect consumers' rights and interests and financial stability, and restrain the use of virtual currency schemes to engage in criminal activities. At present, the uncertainty of the legal status of the virtual currency scheme may also bring challenges to the government authorities

The reputation of Monetary Authority (central bank) is the key factor to determine the effectiveness of its policies, especially monetary policy. The public's trust in fiat money is closely related to the image of the central bank, which pays close attention to its reputation. The ECB will define reputation risk as the risk of deterioration of reputation, credit or public image. As the network currency scheme is related to money and payment, it is generally believed that it belongs to the responsibility of the central bank, so it is necessary to guard against the reputation risk it may bring to the central bank. Although in the case of small scale, the impact of the failure of the network currency scheme is limited, its high volatility and instability also increase the possibility of failure and attract extensive media coverage. If the network currency is allowed to develop continuously without regulation, the central bank may be regarded as dereliction of ty and affect its reputation

Compared with the exchange value, the public has a higher recognition of the investment value of network virtual currency, and it is the transaction based on investment that accelerates the formation of virtual currency market. Like other investment markets, the participants of virtual money market will also face the potential losses caused by market risk, credit risk and policy risk. Take the bitcoin as an example: from 2009 to the beginning of 2010, bitcoin was worthless; In the summer of 2010, bitcoin trading began to enter the golden age. Because the supply was far less than the demand, the value of online trading began to rise. In early November, bitcoin was silent at 29 cents for many days, and then jumped to 36 cents; In February 2011, the bitcoin continued to appreciate, and its exchange rate with the US dollar reached 1:1; In 2013, the bitcoin price achieved a "Big Bang" growth, and hit US $1242 on November 29, 2013, exceeding the gold price of US $1241.98/oz in the same period. Fierce price fluctuations make market participants face huge speculative risks

unlike mature capital markets such as stocks and bonds, bitcoin market is not deep enough, and it is mainly held in the hands of large investors with low degree of diversification. Bitcoin price is easily affected by large investors' trading behavior and controlled by speculators. At the same time, different countries have different attitudes towards bitcoin. Germany, the United States and other countries hold an open and supportive attitude. Thailand, Brazil and other countries regard bitcoin related activities as illegal. Every country's attitude and measures will have a significant impact on its price, especially in the short term

4. Now virtual currency should first know what is virtual currency (virtual digital currency is based on the exchange in the network world, virtual digital currency refers to non real currency, virtual digital currency has its real value).

5. For example, is there really a God in the world? Obviously not, but people still spend human, material and financial resources to Xinyang and worship, and come to the conclusion that there is still value in the existence and exchange of the false theory. Of course, this is different from bitcoin. In the process of bitcoin's generation, a person who seems to be a little famous suddenly put forward a theory, sales of storage currency. At the beginning, this kind of currency was only spread and entertained among a few people (assuming that there were 10000 people in the first year). Of course, these people only held the attitude of entertainment at the beginning, just like playing online games. The next year, suddenly a team or a number of (speculative group), suddenly feel this organic, began to buy at a low price, and grasp the market. When the time is ripe, the whole world will know about this kind of currency by means of media and economic people. The number of participants will increase from less than 50000 to one million, and tens of billions of capital will flow in. I remember the most popular time was at the end of November, when the price of a bitcoin was 7900, but there were many reports at that time that it could rise to 400000, At this time, the speculative teams felt that it was impossible to go up again and began to sell a lot of bitcoin. As a result, the price of bitcoin fell by about 4000 in less than a month. These teams made a lot of gold and silver. However, because there are still one million people involved, the price will stop at around 3000 for quite a while, But in the process of people quitting, bitcoin will be worthless Personal views (for reference only)

6. Let the future decide the future. I can't say that. But I can tell you what 121 bitcoins are worth now? At present, the price of the national disk is about 2270 yuan, the market price of 121 bitcoins is about 275000 yuan, and the price of the external disk is about 370 US dollars, about 447700 US dollars

bitcoin is a consensus network, contributing to a new payment system and a fully digital currency. It is the first decentralized peer-to-peer payment network, which is controlled by its users without a central management organization or middleman. From the user's point of view, bitcoin is much like Internet cash. Bitcoin can also be regarded as the most outstanding three style bookkeeping system. From this point of view, the potential of bitcoin is unlimited, enough to subvert the current financial instry

in China, bitcoin is defined as a special Internet commodity by the central bank, and people can buy and sell it freely at their own risk. Most of the major countries in the world have adopted a cold treatment attitude towards the special currency, which is neither negative nor positive and ambiguous. Germany is the friendliest of bitcoin. Last August, Germany defined bitcoin as a private unit of account (private currency). Australia, the United States, Canada and other countries regard bitcoin as an asset that needs to be taxed. Of course, the attitude of each state and department in the United States is also different. Sometimes, the attitude of the same department and state is also contradictory.

8. The service charge of the toobi platform is much lower than that of exchanging foreign exchange by yourself or doing foreign exchange by yourself. You can find out when you go to other places for investigation.

9. The handling charge of virtual currency is very high, and the risk is also very high