Digital currency and its meaning
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 packet is composed of data code and identification code. The data code is the content we need to transmit, while the identification code indicates where the data packet comes from and goes
based on the characteristics of digital currency, the direct benefit of digital currency to the central bank is not only to save the cost of note issuance, circulation and settlement, but also to enhance the central bank's ability to control funds
Electronic money and virtual money are called digital money. According to the definition of the European Central Bank, virtual money is issued by non central banks, credit institutions and e-money institutions, which can be used as the numerical expression of the value of currency substitutes in some cases{rrrrrrr}
extended information:
the process of digital currency trading through the platform is as follows:
(1) investors should register accounts first, and obtain digital currency accounts and US dollar or other foreign exchange accounts at the same time
(2) users can buy and sell digital currency with the money in their cash account, just like buying and selling stocks and futures
(3) the trading platform will sort the buying requests and selling requests according to the rules and start to match them. If they meet the requirements, the transaction will be concluded
(4) e to the difference between the buy and sell volumes submitted by users, a buy or sell request may be partially executed
Digital money (electronic money or electronic currency) is a kind of money in digital form (different from paper money and coins)
it shows properties similar to physical currency, but it can allow real-time transaction and borderless ownership transfer. Examples include virtual currency, cryptocurrency and currency issued by central bank and recorded in computer database (including digital base currency)
like traditional currencies, these currencies may be used to purchase physical goods and services, but they may also be restricted in some communities, such as online games
digital currency is the currency balance that is electronically recorded on stored value cards or other devices. Another form of electronic currency is network currency, which allows value transfer on computer network, especially on the Internet. E-money is also a creditor's right to other financial institutions such as private banks or bank deposits
digital money can be centralized, that is, it has a central point to control the money supply, or it can be decentralized, that is, the control power can have different sources
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.