Number of virtual currencies issued
The total number of bitcoins is 21 million
in 2009, when bitcoin was born, block reward was 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25
when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million
extended data
monetary characteristics
1. Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom
2. Global circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself
4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution
5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay
6. Cross platform mining: users can explore the computing power of different hardware on many platforms
the first category is familiar game currency. In the era of stand-alone games, the protagonist accumulates money by knocking down the enemy, entering the gambling house to win money, and using these to buy Herbs and equipment, but it can only be used in his own game console. At that time, there was no "market" between players. Since the establishment of Internet portal and community, the realization of game networking, virtual currency has a "financial market", players can trade game currency
the second type is the special currency issued by the portal website or instant messaging service provider, which is used to purchase the services in the website. The most widely used is Tencent's q-coin, which can be used to purchase membership, QQ show and other value-added services
the third kind of virtual currency on the Internet, such as bitcoin (BTC), Fuyuan coin (FTC) and Wright currency (LTC). Bitcoin is an electronic currency proced by open-source P2P software. Some people also translate bitcoin as "bitcoin", which is a kind of network virtual currency. It is mainly used for Internet financial investment, and can also be directly used in daily life as a new currency.
network virtual currency can be roughly divided into
the first category is familiar game currency. In the era of stand-alone games, the protagonist accumulates money by knocking down the enemy, entering the gambling house to win money, and using these to buy Herbs and equipment, but it can only be used in his own game console. At that time, there was no "market" between players. Since the establishment of Internet portal and community, the realization of game networking, virtual currency has a "financial market", players can trade game currency
the second type is the special currency issued by the portal website or instant messaging service provider, which is used to purchase the services in the website. The most widely used is Tencent's q-coin, which can be used to purchase membership, QQ show and other value-added services
the third kind of virtual currency on the Internet, such as bitcoin (BTC), Fuyuan coin (FTC), Wright currency (LTC), etc. bitcoin is an electronic currency proced by open-source P2P software. Some people also translate bitcoin as "bitcoin", which is a kind of network virtual currency. It is mainly used for Internet financial investment, and can also be directly used in daily life as a new currency.
(1) virtual currency based on entity
since ancient times, all "money" made of paper is called paper currency, and all countries in the world are actually paper currency. In Marx's time, paper money was only a symbol of metal money. The actual gold content of paper money was equal to the nominal gold content. When the nominal gold content was greater than the actual gold content, the price index of metal money would increase because of too many paper money. When it exceeded a certain limit, inflation would occur. Marx called these over issued bank notes without gold as guarantee virtual currency. In Keynesian era, paper money was the symbol of GDP. He defined the issue of paper money caused by making up the fiscal deficit as deficit money, and believed that the issue of paper deficit money could promote the development of proction to a certain extent, but only cause half inflation. Zhang chunjia's research in "Introction to virtual currency" also proves that paper money without precious metal and GDP guarantee will cause price rise, and this kind of money is called virtual currency
(2) virtual currency based on virtual
virtual currency is a new type of currency emerging at a certain stage of network social and economic development to meet the security and convenience needs of users. It represents the development direction of future currency existence form. It comes from the Internet, and acts as a general equivalent in the network society completely or partially. Virtual currency is a real currency with the basic attributes of currency, but it is virtual and depends on the network virtual environment. Virtual currency is born without borders, which makes it more liquid than traditional currency in the world. Virtual world corresponds to the real world. Through the exchange relationship between virtual currency and traditional currency, under certain conditions, specific virtual currency can buy physical goods, and traditional currency can also buy specific virtual goods< Second, the characteristics of virtual currency
1. Value: users get utility value by consuming the procts and services provided by operators. Virtual currency has value by providing exchange to meet the utility of consumers. The quantity of virtual currency measures the value of general goods. The issue essence of virtual currency is credit issue, which is the creditor's right of the holder to the issuer. To a certain extent, the value of this kind of claim is the right of claim
2. Virtual environment dependence. The existence of virtual currency is based on the virtual economic environment provided by the issuers and the sustainable operation of the issuers themselves. Otherwise, virtual currency has no significance.
3. Short sighted currency. As the highest price in the process of commodity exchange, the form of currency value can be regarded as the real currency. Because of the limitation of circulation scope, virtual currency can not be used as the general equivalent of all commodities; But in a certain range, it has the function of monetary value scale and circulation means. Therefore, it can be considered that virtual currency is similar to the form of money value, and it is a primary form of money, which is similar to money< The issue and circulation of virtual money is limited, but it will enlarge the money supply through the money multiplier effect, and affect the difficulty and accuracy of macroeconomic regulation and control. The issuers of virtual money need to report their circulation and circulation to the central bank, and obey the unified management of the central bank at any time
5. Virtual currency, which is issued by non-financial entities outside the financial system, aims to obtain business opportunities and competitive advantages. It is a market behavior and will inevitably lead to competition among issuers. This kind of competition will proce unfair competition behavior or obtain competitive advantage through rent-seeking, which determines the need to regulate the market behavior of the market subject according to the laws and regulations
6. Virtuality: as a kind of approximate currency, virtual currency is virtual existence if it only exists in the virtual world and can purchase the virtual property in it; If it is linked with sovereign currency, it can exist in the real world and purchase real assets, then it is a virtual thing of sovereign currency. Virtual currency is actually a series of data files existing in the computer system. It has the meaning of virtual currency only after the issuers explain the system. Therefore, the existence form of virtual currency is virtual< In general, virtual currency can purchase the procts and services provided by the issuers, and it can also be exchanged with the issuers outside the scope of issuance at a certain rate to purchase the procts of the alliance. For procts outside the alliance, virtual currency has no value significance; Similarly, when virtual currency is only authorized to buy different procts in different sales cycles, the use of virtual currency has limited application in time and scope, unlike sovereign currency, which can be completely freely exchanged
8. Separability: virtual currency has no physical form and is a digital storage information. Unlike traditional paper currency, it needs to consider the balance relationship between the circulation of main currency and subsidiary currency and the proportion of various currency values. It can be split infinitely. For example, although the total number of dark coins is only 2300, each bitcoin can be split into eight directions of ten< Although virtual currency exists in the virtual world, the process of new technological revolution has closely linked the virtual world with reality, and the virtual world has become an important part of people's spiritual life. It can promote the development of real economy, for example, a large number of entertainment application projects provide people with rich spiritual wealth and real wealth, and more and more people invest in virtual currency, which represents a trend, and the more successful ones are bitcoin, Leyte coin and the new domestic King coin; On the contrary, money laundering, gambling and network theft in the virtual world will have a negative effect on the real economy.
The concept of 21 million
bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
bitcoin is not issued in unlimited quantity, which is different from most currencies. Bitcoin does not rely on a specific currency issuer. But according to the specific algorithm, through a large number of calculations. Its circulation is controlled by software algorithms. The total number is 21 million
extended materials:
generation principle
starting from the essence of bitcoin, the essence of bitcoin is actually the special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique[ 10] In the metaphor of RMB, bitcoin is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million
to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start. After completing the installation of bitcoin client, you can directly obtain a bitcoin address. When others pay, you only need to paste the address to others, and you can pay through the same client. After installing the bitcoin client, it will distribute a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. Unfortunately, if the hard disk is completely formatted, personal bitcoin will be completely lost
the development of this kind of digital currency depends on the quantity. There are more than 30 million digital currencies. Dogcoin is a typical example. Although dogcoin is the digital currency with the second largest number of users in the world after bitcoin, its recent development momentum is not optimistic. The total number of thousand gold cards is only 3 million, but the development momentum is good.