PC virtual currency

1. As a blockchain researcher, many new people often ask this question. In fact, there are two main ways to obtain bitcoin. The first is to purchase bitcoin directly from the corresponding digital currency exchange; The second is to mine for bitcoin

first of all, mining is the main way to obtain bitcoin, but the current threshold of mining is relatively high. If you choose to mine by yourself, first you need to understand certain technology, then download the bitcoin client and mine by yourself according to the online bitcoin mining tutorial
however, in theory, bitcoin can still be mined with computers or graphics cards. However, e to the development of mining instry in recent years, the whole network computing power of bitcoin is extremely terrible (more than supercomputers), so if you want to mine with computers or graphics cards, you can't find bitcoin, If you want to dig bitcoin, you still need to buy mining machines. Now the better mainstream mining machines in the market have to be tens of thousands. Of course, there are cheap second-hand mining machines, but these second-hand mining machines are all obsolete ones, and the electricity cost of mining is relatively high

in addition to the second way of direct purchase, the digital currency exchange is a special place for bitcoin trading. If you want to own a bitcoin, you can buy it directly with money. However, it should be noted that there are many digital currency exchanges in the market at present. Many small exchanges are specialized in cutting users and eating customer losses for a living. Therefore, when choosing an exchange, it is better to focus on the head exchange. For example, Hufu exchange, one of the leading exchanges in China, has been in use for nearly two years and is still very stable and safe.

2. According to the official reply of the State Administration of Taxation on the issue of indivial income tax on the income of indivials from buying and selling virtual currency through the Internet (GSH [2008] No. 818), the income obtained by indivials from purchasing players' virtual currency through the Internet and selling it to others after price increase belongs to the taxable income of indivial income tax, The indivial income tax shall be calculated and paid according to the item of "income from property transfer". The original value of an indivial's property in selling virtual currency is the price and related taxes paid for his purchase of network virtual currency. If an indivial is unable to provide evidence of the original value of his property, the original value of his property shall be verified by the competent tax authorities.

3. As long as the price is reasonable, it is not illegal for both parties to trade voluntarily. It's like you have an old TV set that you want to sell and someone wants to use. It's not against the law to negotiate the price and pay for it and deliver it.

4. There are no strict restrictions on the issuance of virtual currency in China, but the premise is that illegal activities are not allowed. There is no need to apply to issue a virtual currency in China. Virtual currency is still in a gray area in China. Bitcoin, Ruitai coin, Laite coin and so on are well-known in China.

5.

You can't dig in a day. It takes 2000 years

the global unified computing difficulty of bitcoin is 2621404453 (expected to change in two days). It takes more than 2000 years for a 2.5GHz CPU to work out a bitcoin

in order to make the graphics card fully loaded for a long time, the power consumption will be quite high, and the electricity bill will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned

extended data:

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

when bitcoin was born in 2009, block rewards were 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million

6. At present, indivials should not be able to issue virtual currency. For example, Internet game companies have to have a license to issue virtual currency.

7. At present, the global unified computing difficulty of bitcoin is 2621404453 (it is expected to change in two days). It will take more than 2000 years to work out a bitcoin and a 2.5GHz CPU, which is ridiculous. Home computer can dig out a bitcoin in three months, I don't know what age it is

8. It can be, but it's not worth it. Bitcoin is a kind of virtual currency. To put it bluntly, it is to use the computing performance of computer to do coolie for large servers, and the cost saved will be shared with you. But bitcoin is not cost-effective, and personal computers are not suitable for mining. The reasons are as follows:
1. The calculation is mainly done by GPU, while the GPU of ordinary computers is not very powerful, which directly leads to the low efficiency of mining, and even the electricity bill can not be recovered
2. Because it is the exchange of data on the network, not only the performance of the computer should be good enough, but also the bandwidth and quality of the network should be higher. If you were asked to build a 100 megabit broadband of Telecom before, would you be so interested
3. GPU will generate a lot of heat ring calculation. If it is not handled properly or the original radiator is very dirty, it may burn the GPU or computer, and the gain will not be worth the loss
4. The other is the impact of the environment. Let's not say where bitcoin is going, but that the exchange rate is seriously declining and there is no money to be made before. Professional mines are even processing equipment. It's obviously unreasonable to go mining at this time.