1. In short,
virtual currency, also known as cryptocurrency, is issued and circulated on the Internet and mainly traded through exchanges. Because it runs on the
blockchain, every transaction on the chain is semi anonymous and tamperable, so it ensures the circulation and a certain degree of security. Mainstream digital currencies include
bitcoin, Ethereum and Leyte.
digital currency is inseparable from blockchain technology. The core idea of the latter is to ensure that all nodes have a consensus on a transaction through transaction broadcast and irrelevant node confirmation. Once the consensus is formed, transaction confirmation, block excavation and reward will follow. This reward is digital currency. If digital currency wants to have value, it can't do without people's recognition of its value. The more recognition, the more people want to have it, and the exchange came into being. If it's Xiao, it's not recommended to go to big exchanges (currency security, currency, OK) to play contract leverage. You can go to small exchanges to practice, such as currency easy, etc. You can also learn about the coin circle information. The development of the whole coin circle changes every day, very fast
there is no price limit for P.S. digital currency trading, so investment should be cautious!
2. 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
3. You have to remember that in addition to bitcoin, the remaining 99 digital currencies are packaged to circle money! 99% of digital currencies have no value. Ecosys TEM health chain (EHC) is a decentralized big health ecosystem established by using blockchain technology, artificial intelligence and big data. EHC integrates medical big data, connects online and offline medical data transmission, and records data to the blockchain. EHC also supports three-party developers to deploy DAPP based on EHC, and to call the data on the chain
but! Now these projects don't work? It's all packaged air. What's the practical effect of blowing so high?
4. It's better to excavate in the 12th floor, not because there are most minerals, but because it's easy to brush magma down the 11th floor, so it's better to excavate in the 12th floor.
the well method is to excavate vertically, with two sides of 1x2, so that you won't fall into a dangerous place just because you only dig at your feet. Then you can put a ladder in one passage and water in the other end, so you can jump down when you come down, Save time and don't die
the fishbone method is to first dig a main mine on the 12th floor, and then dig branch mines on both sides of the main mine, with 2 blocks in the middle of each branch mine, so as to maximize the
mining efficiency
5. "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 an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. 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, or can be transferred, stored or traded in electronic form. 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.