What are items in digital currency

1.

mining is a nickname for the exploration method of acquiring bitcoin. Because of its working principle is very similar to mining minerals, so named. In addition, bitcoin explorers who do mining work are also known as miners

bitcoin network generates new bitcoin through "mining". In essence, the so-called "mining" is to use computers to solve a complex mathematical problem to ensure the consistency of bitcoin network distributed accounting system

bitcoin network will automatically adjust the difficulty of mathematical problems, so that the whole network can get a qualified answer about every 10 minutes

then the bitcoin network will generate a certain amount of bitcoin as a reward to reward the person who gets the answer

extended data:

to be a miner, just "mine" bitcoin and search for 64 bit numbers by computer. By repeatedly decrypting with a computer, it competes with other gold miners to provide the number needed for the bitcoin network

if the computer can successfully create a set of numbers, it will get 25 bitcoins. Bitcoin is decentralized. It needs to create a fixed number of bitcoins per unit of computing time. It can get 25 bitcoins every 10 minutes

by 2140, the upper limit of bitcoin in circulation will reach 21 million. In other words, bitcoin system can be self-sufficient, which can be translated into coding to resist inflation and prevent others from sabotaging< br />

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

the digital currency launched by the central bank is a national sovereign currency, which is based on the digitalization of RMB. This is a piece of data generated by a complex algorithm, which contains blockchain and encryption technology, making it unique. The payment of Alipay and WeChat is not digital money, but only based on the payment realized by electronic accounts. Compared with the current pattern of "payment transfer collection" with the help of third-party payment, what digital currency needs to achieve is "decentralization", that is, to cancel the transfer link and directly hand over the money from the payer's account to the payee, so as to rece the payment cost in currency circulation

types of digital currency

according to different issuing or consensus mechanisms, it can be divided into four categories:

1, proof of work (POW)

proof of work. The system rewards are obtained through the mining of computing power to complete the issuance and distribution of currency. More work, more gain. Such as bitcoin, lightcoin (LTC)
the advantage is that the mining cost can form a monetary price support to a certain extent, and the disadvantage is that energy consumption and environmental protection are criticized< 2. Proof of stake (POS). Allocate the newly generated currency or interest according to the amount and time of cryptocurrency you hold. Such as dash and Neo
compared with pow, POS is more energy-saving, but it increases the security risk

3. The evolution scheme of delegated proof of stake (dpos)
POS. Similar to the voting mechanism of the board of directors, through the election of representatives to vote and make decisions, n accounting nodes are elected to create, verify, sign and supervise each other. Such as the grapefruit coin (EOS)
the advantage is high efficiency, but the problem is that it presents a semi centralized state

4. POW + POS hybrid mechanism
POW is mainly used to issue currency, and POS is used to maintain the system. For example, PPC

according to the project type, it can also be divided into four categories:

1. Currency category
digital currency issued for the purpose of transfer, payment and value storage. For example, bitcoin, bitcoin cash (BCH), Monroe (XmR), and grin

2. Public chain currency, that is, the digital currency issued by public chain projects, is generally the "fuel" for the application projects to run on the public chain. Such as eth, grapefruit coin, TRX and ont

3. Application token, that is, digital currency issued by decentralized application projects, is equivalent to equity or points. For example, OMG (payment application), GXC (data application), 1st (game application)

4. Platform currency, that is, the digital currency issued by the digital currency exchange, is equivalent to equity, points or fuel. For example, BNB, HT and okb.

3.

Blockchain is the latest computer technology, the core is decentralized, distributed accounting. Digital currency is based on the underlying technology of blockchain. It can be said that without blockchain, there will be no digital currency. But without digital currency, there may still be blockchain. It's just that blockchain will be so hot, and it can't be separated from digital currency

in the future, digital currency will continue to develop. We can take advantage of the early stage to enter the digital currency and hoard some valuable digital currencies, such as Xunlei's playcoin

but at the same time, there is an unavoidable problem of digital currency, which is the lack of real economy support. At present, only a small part of the more than 1000 kinds of digital currencies circulating in the market rely on the economic support of miners. In other words, digital currency may be worth ten thousand yuan in the first second, but it may not be worth a minute in the second

therefore, before you make digital currency, you must investigate, analyze and choose carefully, so as not to cause losses to yourself

4. Lightcoin is a kind of network currency based on "peer-to-peer" technology. It is also an open source software project under MIT / X11 license. It can help users make instant payments to anyone in the world, as is the case with dcpro.

5. There is no relationship between the ability to withdraw cash and which country. It depends on whether the platform allows users to withdraw cash. If users are not allowed to withdraw cash, they have no choice but to accept their fate, that is, they cannot withdraw cash. Digital currency exists legally in China and is regarded as an Internet commodity. People can buy and sell it freely at their own risk, but it denies its monetary attribute
however, in China, pyramid schemes of digital currency emerge in endlessly, which are hard to prevent. If you don't understand digital currency, you'd better not touch it. Of course, you can also play bitcoin, Ruitai, Laite and other mainstream digital currencies.

6. In western economics, LMC and SMC represent respectively, M represents margin, LMC represents long-term marginal cost, SMC represents short-term marginal cost, plus lac's long-term average cost, sac's short-term average cost, AC, to synthesize two graphs, which are used to illustrate several critical points, such as when the profit is the largest, when to start to lose, when to stop proction, etc. Western economics refers to the paradigm of political economy which is proced and popular in western countries. In a narrow sense, it refers to the paradigm of western bourgeois political economy. In a broad sense, it includes the paradigm of Marxist political economy. Western economics and Eastern economics are different economic paradigms. Western economics is mainly a paradigm concept, not just a regional concept. Since the reform and opening up, the popular Neo liberal economics in China also belongs to western economics.

7. PPP refers to a partnership between the government and private organizations in order to cooperate in the construction of urban infrastructure projects, or to provide some public goods and services, based on the concession agreement, and to clarify the rights and obligations of both parties by signing a contract, so as to ensure the smooth completion of the cooperation, In the end, the cooperative parties will achieve more favorable results than expected. In this mode, private enterprises and private capital are encouraged to cooperate with the government to participate in the construction of public infrastructure. The public sector and the private sector learn from each other to share risks and benefits.