Digital currency credit system

1.

1、 Different definitions:

1. virtual currency:

virtual currency refers to non real currency

digital currency:

digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy

3. Cryptocurrency:

cryptocurrency is a kind of transaction medium that uses cryptography principles to ensure transaction security and control the creation of transaction units

4. Token (token):

a kind of article whose shape and size are similar to currency, but the scope of use is limited and has no currency effect, and its token is the homonym of token in English

Second, the characteristics are different:

1; It can also be said that virtual currency is personalized currency. In another way, it can also be called information currency

2. Digital currency:

is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities

Cryptocurrency:

cryptocurrency is based on the decentralized consensus mechanism, which is opposite to the banking and financial system relying on the centralized regulatory system

4. Token (token):

usually needs to be exchanged for money, used in shops, playgrounds, mass transportation and other places, as a voucher to use services and exchange goods

extended data

at present, digital currency is more like an investment proct, because it lacks a strong guarantee agency to maintain its price stability, and its role as a value measure has not yet appeared, so it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investment company

digital currency is a double-edged sword. On the one hand, the blockchain technology it relies on has been decentralized and can be used in other fields except digital currency, which is one of the reasons why bitcoin is popular; On the other hand, if digital currency is widely used by the public as a kind of currency, it will have a huge impact on the effectiveness of monetary policy, financial infrastructure, financial market and financial stability

2.

The digital currency of the central bank is DCEP

the name of the digital currency developed by the central bank is DCEP (digital currency electronic payment). DC is digital currency. EP is electronic payment. Payment transmits digital things through a certain way, not paper currency. Therefore, electronic payment itself has the attribute of digital currency

The characteristics of digital currency are: low transaction cost; Fast trading speed; Highly anonymous

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Application of digital currency

I. fast, economic and safe payment and settlement

cross border payment helps RMB internationalization. In 2015, the settlement volume of cross-border payment involving current account is about 8 trillion yuan. To accelerate the internationalization of RMB, cross-border payment and settlement procts and solutions with low cost, high efficiency and low risk are needed

At present, there are still a lot of repetitive human work in the bank's electronic loan process and processing process, and as the basic support of loan issuance, many of the collateral has the situation of false pricing or multiple or even no collateral. We can consider using digital currency to price and track bank collateral:

3. Bill finance and supply chain finance

in recent years, various bill market businesses based on commercial bills have grown rapidly, and bill financing procts have become a hot area of Internet financing. However, about 70% of the current bill businesses in China are still paper transactions, Supply chain finance is also highly dependent on labor costs

reference materials

network digital currency

3. "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.

4. Generally speaking, DCEP is the "digital currency with value characteristics" issued by the state. It can completely replace the market banknotes and has the same functions and attributes as banknotes. The release of DCEP redefines what digital currency represents. In the past, bitcoin, Ethereum and other currencies also had multiple nicknames such as digital currency or cryptocurrency. Now digital currency needs to be removed from these nicknames
in terms of positioning, the central bank's digital currency DCEP is not simply the digitization of banknotes, but to replace M0 (banknotes and coins) and change the form of the base currency. M0 refers to the cash in circulation, that is, the sum of the cash on hand of various units outside the banking system and the cash held by residents. The digitalization of banknotes generally refers to online replacement of lines, such as Alipay and WeChat, which all belong to online payment. However, both of them need to bind bank cards to pay. DCEP does not have this restriction, that is to say, when using DCEP for payment, there is no need to bind any bank account
the name of digital currency is easy to associate with cryptocurrencies such as bitcoin, but there is a fundamental difference between DCEP and them: DCEP is centralized while bitcoin is decentralized
to be exact, DCEP is a kind of sovereign credit currency, while the latter two are the procts of the idea of "currency non nationalization". The paper money itself has no value. The reason why it can perform the function of currency is that it is supported by the national credit and has the nature of legal compensation and compulsion. However, cryptocurrency such as bitcoin is a kind of private currency in essence and has no solid credit foundation. Therefore, any cryptocurrency with its own mining algorithm, following P2P protocol, limited amount, reaching a certain degree of consensus and decentralization can be a substitute for bitcoin
comparatively speaking, if there is a substitute for DCEP, it can only be other forms of RMB, such as banknotes and coins. That is to say, the digital currency DCEP issued by the central bank is still the debt of the central bank to the public, and this relationship between creditor's rights and debt will not change with the change of currency form.

5.

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

   

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

7. The purpose of the invention of bitcoin is to replace paper money and achieve absolute fairness in the lending process
it's like an account book. We can record all our loans on it. Anyone can write on it, but how can we ensure that others don't Scribble
you will want to sign at the back, but someone will fake your signature. So we need to use electronic signature, that is, each account will generate a key, which only you know, and then confirm that the signature is your own through the public key
the above is only a safe way of lending, but it still needs a website to act as a bank, so the website can modify the amount of lending at will, and there is no law to restrict it
therefore, it is necessary to decentralize, that is, to publish one's own account and let everyone share it, so that the opposite side will not cheat. But how do you make sure people don't tamper with your bills
first of all, an account book must be divided into one page, that is, blockchain. According to the content of the blockchain, a hash function (a bit like a key, but with different functions) will be generated. The hash function is a one-way function and can't be pushed backward, so you can only rely on guessing to decipher it. The amount of enumeration needed to decipher a password is called workload. Then the computer will stamp the proof of workload on your bill, and the proof of workload means there is no mistake. So how can you convince others that you're not lying
this requires credibility. The measure of credibility is workload. The bill with heavy workload has more credibility. The workload here does not refer to the amount of calculation, but refers to the number of bills, that is, the number of blockchains. The more repeated the same account is received, the stronger the credibility is. Because others will sort out the accounts they receive, and then re publish them, which is an infinite cycle process. This prevents people from cheating by not publishing their bills
every time a blockchain is released, it will be rewarded, that is, "mining". But in order to prevent the unlimited expansion of bitcoin, bitcoin will dig less and less, that is, the rewards will be less and less. Therefore, players want to increase the release volume of blockchain by paying others a reward (service charge) at their own expense, and at the same time form its monetary function
furthermore, the total number of bitcoin is unchanged, but more and more people use it, so it is more and more difficult to dig, which is why many people have been complaining about the mine disaster
in my opinion, bitcoin is not so much a currency as a game. In short, it means that you pay more for mining, and the more you dig, the more you win.

8. It is reported that the central bank's research on the issue of digital currency is not a temporary move. Since 2014, the research on the central bank's digital currency has been carried out for five years. In 2017, the digital currency Research Institute of the people's Bank of China was officially established, and has applied for more than 70 patents related to digital currency technology< In recent years, with the development of Internet technology, especially blockchain technology, many so-called "virtual currencies" have emerged in the world, such as bitcoin and Laite currency, which are controversial in recent years. So, how is the digital currency proposed by the central bank different from these commercial "virtual currencies"? The following is an analysis of the patent of Xiaoju

some patents of the digital currency Research Institute of the people's Bank of China (data source: huijuyun)

what is digital currency? --[ Invention patent] digital currency system

cloud computing is the mainstream direction of the future back-end server, and the digital currency back-end system adopts cloud based solutions

in e-commerce activities, e to different roles, the requirements for digital currency are different: customers require digital currency to be easy to use, safe to store and anonymous; Businesses require digital currency to be certifiable and can be converted into real currency; Banks require that digital currency cannot be illegally used or forged. Therefore, digital currency d-rmb should have the following characteristics:

1. Security: it can prevent any party in business from changing or illegally using digital currency< 2. Non repeated spending: digital currency can only be used once, and repeated spending can be easily detected

3. Controllable anonymity: banks and businesses collude with each other and can't track the use of digital currency, which requires that the system can't link the purchase behavior of e-cash users, so as to conceal the purchase history of digital currency users, but the issuer of digital currency can track the use of digital currency

4. Unforgeability: digital currency that users cannot fake

5. Fairness: the payment process is fair, which ensures that either the two parties succeed in the transaction, or both parties have no losses, so as to prevent one of the parties from suffering losses in the transaction

6. Compatibility: the issue process and circulation of digital currency in d-rmb system should refer to the issue and circulation of physical currency as far as possible

as for digital currency, it should be able to adapt to various use scenarios of existing currency and be freely convertible with existing currency

this patent provides a digital currency system, including central bank digital currency system, commercial bank digital currency system, and authentication system

among them, the central bank's digital currency system is used to generate and issue digital currency, and to register the ownership of digital currency; The digital currency system of commercial banks is used to perform banking functions for digital currency; The authentication system is used to provide authentication for the interaction between the central bank digital currency system and the terminal equipment used by the users of the digital currency, and for the interaction between the central bank digital currency system and the commercial bank digital currency system

schematic diagram of the basic structure of the digital currency system

to achieve a convenient and safe digital currency system, and can be applied to a variety of application scenarios of digital currency in reality< How to convert digital currency into cash[ Invention patent] method and system for converting digital currency into physical cash, The digital currency system of the commercial bank sends the digital currency to the central bank digital currency system, the central bank digital currency system generates a one-time withdrawal code, and then sends it to the user terminal equipment for presentation to the user, and changes the owner information of the digital currency from the user to the central bank

the digital currency system of the commercial bank sends the one-time withdrawal code provided by the user to the digital currency system of the central bank. The digital currency system of the central bank confirms that the one-time withdrawal code is valid, and then increases the cash amount of the commercial bank account, and sends a notice to the digital currency system of the commercial bank that the one-time withdrawal code is valid, After receiving the notice, the digital currency system of commercial banks issues a contribution instruction, in which the contribution instruction is used to control the machine or prompt the user to pay the cash whose amount is equal to the cashed amount manually<

schematic diagram of a method of converting digital currency into physical cash

How can digital currency be consumed online? --[ Invention patent] method and system of online payment using digital currency chip card

this patent is a method and system of online payment using digital currency chip card. A method for online payment using digital currency chip card is provided. The method includes: a user terminal device sends payment information to an acceptance terminal device, and the payment information includes digital currency chip card information and digital currency equivalent to the payment amount; After receiving the payment information, the receiving terminal sends the payment information to the digital currency system of the commercial bank; After receiving the payment information, the digital currency system of the commercial bank sends a request to change the owner to the digital currency system of the central bank; The central bank digital currency system changes the owner of the digital currency to the merchant's commercial bank code after receiving the request to change the owner; The digital currency system of commercial banks changes the account amount of merchants<

the method flow chart of online payment with digital currency chip card in recent years, the commercial virtual currency has been controversial, and more and more people realize that the future development trend of digital currency is legal digital currency issued by central banks based on national credit. At present, China is still in the stage of accelerating the research and development of digital currency. For example, the central bank held a working video conference in the second half of 2019 on August 2, calling for "accelerating the pace of research and development of China's legal digital currency". Recently, the "opinions of the CPC Central Committee and the State Council on supporting Shenzhen to build a leading demonstration zone of socialism with Chinese characteristics" clearly stated that "We support the development of innovative applications such as digital currency research and mobile payment in Shenzhen". Let's wait and see when digital currency will meet you.

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