Five element blockchain digital currency
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to know the difference between them, we need to know the definition of them first
digital currency: short for digiccy, which is the abbreviation of "digital
currency", is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
blockchain: blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is essentially a decentralized database, also known as the trust machine
from the above definition, we can know that blockchain is a technology, and digital currency is a kind of virtual currency
digital currency is not equal to blockchain
many people will understand blockchain as blockchain. Here I want to correct that digital currency is not equal to blockchain. Digital currency is only an application of blockchain, and some digital currencies may not be applied to blockchain technology.
nowadays, the mainstream digital currencies are basically developed based on blockchain technology. Blockchain is the underlying technology of digital currency. The domestic tea based digital currency Puyin is developed based on blockchain technology.
for example, Sunzi asked Li Zi to borrow 100 yuan, but Li Zi was afraid that he would default, so he asked the village head to do notarization and add the account. This is called centralization. But if you don't ask the head of the village, you can shout "I'll lend my grandson 100 yuan! Please put it in the account book. "This is called decentralization. In the past, the village head was highly respected and had a good command of the accounts of the whole village. Everyone kept their money with him. This was the past trust in centralization. Now, everyone is worried that the village head will secretly misappropriate everyone's money. What should we do? So everyone sent an account book to everyone. Anyone who transfers money between them releases information through the loudspeaker. After receiving the information, everyone records the transaction in their own account book. This is called decentralization. With distributed ledgers, it doesn't matter if Lao Zhang or Lao Li's ledgers are lost, because Lao Zhao, Lao Ma and other families have ledgers
digital currency is abbreviation of digital currency. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy. Blockchain technology service upgrade technology
blockchain is the core supporting technology of digital cryptocurrency system represented by bitcoin. The core advantage of blockchain technology is decentralization. It can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the common high cost, low cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry
taking the tourism instry as an example, blockchain applications mainly focus on tourism travel, tourism community reviews, digital identity management, credit consumption management, tracking pilot's professional certificate and qualification, loyalty plan of hotels and airlines, reservation management and consumption points management. In addition, blockchain also has applications in finance, games, entertainment and other fields.
The central bank's digital currency is digital RMB, which is issued by the people's Bank of China. On March 9, 2018, Zhou Xiaochuan, then governor of the central bank, officially disclosed at a press conference that the name of the legal digital currency under development is DCEP
DCEP is the abbreviation of digital currency electronic payment. This means that the central bank's digital currency will have the al functions of legal currency and electronic payment at the same time In September 2013, the Ministry of Public Security announced 10 typical pyramid selling cases, among which "Cloud Data Trade" is a large-scale pyramid selling mode in China
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specifically, the characteristics of DCEP are mainly reflected in finance and technology
1. As far as its financial characteristics are concerned, the functions and attributes of the central bank's digital currency are exactly the same as those of the RMB paper currency, which is only a digital version of the paper currency. This shows that digital currency is legal tender, and it depends on national credit to maintain the circulation system of digital currency. Mu Changchun, director of the digital currency Research Institute of the central bank, clearly pointed out that DCEP "is a digital payment tool with value characteristics"
In economics, M0 is often used to refer to the cash circulating outside the banking system. The central bank's positioning of DCEP is to replace M0, that is, to replace cash2. In terms of technical features, the digital currency of the central bank has not fully adopted the blockchain technology. The blockchain research group of the digital currency Research Institute of the people's Bank of China has pointed out in a paper that the processing efficiency of the blockchain system needs to be improved. The encrypted assets based on this technology can not guarantee the stability of its anchored assets. At the same time, its decentralization also conflicts with the central bank's centralized management requirements
However, it is said that digital currency draws on some of these technical concepts, such as asymmetric encryption, smart contract and so on. The new cryptocurrency system has the advantages of security, controllable anonymity and unforgeability, which makes up for the problems of high cost, difficult tracking and large counterfeiting