The system of digital currency

1. It is very clear in the speech of the central bank that the digital currency is M0. What is M0? M0 is cash. We speculate that the basic framework for the central bank to issue digital currency in the future should be a two-tier structure. The core is the database of the central bank, and the periphery is the blockchain of different instries, regions and third parties. Why? Only by using a decentralized system in the second layer can you ensure that the money is controlled by the users themselves and that the digital currency really becomes M0

we speculate that once the central bank issues digital currency in the future, the periphery of the structure must be a decentralized system. At present, blockchain is the best choice

when talking about digital currency, the central bank also mentioned another concept, which is called programmable currency. How to understand? For the computer, it has a certain internal self-control function. Take the early object-oriented language as an example, it requires at least two functions, one is the constructor, the other is the destructor. You have to solve the problem of its creation as well as its extinction

through programming, the central bank can control the whole life cycle of money creation, circulation and withdrawal

in the absence of digital currency and programmable currency, the currency issued by the central bank circulates freely in the society. How to return to the cage in the end? One is the return of derivative currency of commercial banks, the other is the return of basic currency of central bank. The former is controlled by the central bank through deposit reserve and other policies, while the latter is controlled by the tax system. If we go up to programmable digital currency in the future, the central bank will have much more control. Even in circulation, control can be increased. That's why central banks are very interested in blockchain technology.

2. "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 package is composed of data code and identification code. The data code is the content to be transmitted, while the identification code indicates where the data package comes from and goes
definition of digital currency:

the alternative currency in the form of electronic currency belongs to digiccy
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 the digital expression of value, which is not issued by the central bank or authorities, nor linked with legal currency, but because it is accepted by the public, it can be used as a means of payment, and can also be transferred, stored or traded electronically
digital currency can be considered as a virtual currency based on node network and digital encryption algorithm

the core characteristics of digital currency are mainly reflected in three aspects: first, e to some open algorithms, digital currency has no issuing subject, so no one or institution can control its issuing; ② Because the number of algorithm solutions is fixed, the total amount of digital currency is fixed, which fundamentally eliminates the possibility of inflation caused by the overuse of virtual currency; ③ Because the transaction process needs the approval of each node in the network, the transaction process of digital currency is safe enough

the emergence of bitcoin poses a great challenge to the existing monetary system. Although it belongs to the generalized virtual currency, it is essentially different from the virtual currency issued by network enterprises, so it is called digital currency. This paper compares digital currency with electronic currency and virtual currency from the aspects of issuing subject, scope of application, issuing quantity, storage form, circulation mode, credit guarantee, transaction cost and transaction security.

3.

Digital currency is a kind of legal tender, which must be issued by the central bank. Both digital gold coin and cryptocurrency belong to digital currency, which is not a network virtual currency, because it is not limited to virtual space, but is often used for real goods and services transactions, such as bitcoin, Wright coin, bitstock, etc. at present, there are thousands of digital currencies issued around the world

extended data:

1. Impact on financial infrastructure

the decentralized mechanism of value exchange based on distributed ledger technology has changed the basic settings of gross and net settlement on which financial market infrastructure depends. The use of distributed ledgers also poses challenges to trading, clearing and settlement, as it promotes the disintermediation of traditional service providers in different markets and infrastructures. These changes may have potential impacts on market infrastructure other than retail payment systems, such as large payment systems, securities settlement systems or trading databases

If digital currency and distributed ledger based technology are widely used, it will bring challenges to the intermediary role of financial system participants, especially banks. As a financial intermediary, banks perform the ties of acting supervisors and supervise borrowers on behalf of depositors. Usually, banks also carry out liquidity and maturity conversion business to realize the financing from depositors to borrowers. If digital currency and distributed ledger are widely used, any subsequent disintermediation may have an impact on savings or credit evaluation mechanisms

4. Digital currency is an alternative currency in the form of electronic currency. It is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. It is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold. Today's digital currencies, such as bitcoin, lightcoin and ppcoin, are electronic currencies created, issued and circulated by means of check sum cryptography
definition of currency
digital gold currency is a form of electronic currency named after the weight of gold. The typical unit of measurement for this currency is the Troy gram or troy ounces, although sometimes the golden Dinar is used. Digital gold currency is funded by gold storage without quota or decentralized quota. By January 2006, digital gold currency suppliers held more than 8.6 metric tons of gold as reserves, worth about $154 million

future trend
in November 2016, the central bank prepared digital currency, and it is likely that cash will not exist in ten years

in November 2016, China digital currency Research Institute was established to cultivate high-level talents of digital currency, carry out digital currency research, consultation, development planning and related activities. It is a non-profit unit with legal license approved by relevant ministries and commissions, and is committed to promoting the integrated development of scientific research and practice of digital currency instry

up to now, Hangzhou, Shenzhen and Guizhou have become three hot areas for the central bank's digital currency pilot. It is reported that Hangzhou is actively promoting the planning and construction of Qiantang River financial harbor, including the blockchain instry. Hangzhou will build the first blockchain Instrial Park in China, which is located in the Internet Finance town of Xihu District, surrounded by ant financial services, e-commerce bank, Zhejiang University and its science and Technology Park and other well-known enterprises and parks

in February 2020, digital currency was selected by MIT Technology Review as one of the top ten breakthrough technologies in the world in 2020

5.

Generally, the excellent digital currencies are mostly imported procts, such as bitcoin, Leyte coin, ether coin and so on. However, the domestic Yuanbao coin, Ruitai coin, bitcoin and the tokens of different crowdfunding projects of European crowdfunding are excellent digital currencies

< H2 > development materials

digital currency (English: digital currency) is an alternative currency in the form of electronic currency. At present, no central bank of any government has indicated that it will issue digital currency, and digital currency does not have to have a benchmark currency and a central bank

it is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold. Today's digital currency, such as bitcoin, lightcoin and ppcoin, is an electronic currency created, issued and circulated by check sum cryptography

6.

Do you mean there is no essential difference between digital currency and the existing monetary system? I don't know where to draw this conclusion. At present, the general digital currency mainly includes bitcoin, Ethereum, reborn, Leyte and other virtual currencies. These virtual currencies are very different from the existing monetary system! For example:

1. issuers: the issuers of existing legal tender are national government agencies, generally the central bank. Bitcoin and other digital currencies are issued according to the program encryption algorithm. If we want to say that the issuing subject, even one person can issue them. There is no credibility or coercion

2. credibility. The existing monetary system, that is, legal tender, has the endorsement of national credit, which has more credibility. Bitcoin and other digital currencies rely on algorithms, which are often issued by a community or even indivials, with weak credibility

3. mandatory. The existing monetary system, namely legal tender, is issued by the state and circulates in a country or region according to law. Digital currencies, such as bitcoin, do not have the power to enforce the law

4. volatility. In the current monetary system, there are exchange rate fluctuations in various legal currencies, but they are basically in a relatively stable state. As for bitcoin and other digital currencies, you can look at the market of digital currencies on investing. It can be seen that the price difference of bitcoin even one day is more than 10%, which is obviously unstable

   

7. In fact, the technical systems corresponding to various digital currencies are quite different
moreover, the development of digital currency is still immature.