BTC transaction buyer restrictions

2.

From the current technology, the next bitcoin in the bitcoin data structure can be divided into 8 decimal places, so the minimum unit of bitcoin is 0.00000001btc, but the transaction can not be so small

according to the statistics of bitbao, at present, the common minimum trading unit of bitcoin trading platform in China is 0.01btc, so the 0.0001 proposed by the owner is not available for sale< br />

3. The people's Bank of China banned financial institutions from trading in bitcoin, saying that bitcoin is not a "real" currency. As far as the investment risk of bitcoin is concerned, the government's view may be reasonable
the media's hype about bitcoin has made more than one newspaper sneer: "at present, journalists recognize bitcoin more than investors as a reliable way to store wealth." Government departments around the world are also paying attention to bitcoin. Although the Chinese and American governments have not banned it, they do not encourage people to participate in it. Here we focus on two questions: why is bitcoin so important? Why doesn't the government like bitcoin

bitcoin is a virtual payment system, which is not controlled or governed by any central government or private institutions. Unlike Alipay or Paypal, the system has its own monetary unit (bitcoin) instead of Renminbi, US dollars or other legal tender. Strictly speaking, bitcoin has no physical form. Instead, it trades over the Internet, and users store their bitcoin in their wallets. The bank account books record the depositors' deposits and withdrawals. The public can not see these records, but it is legal for the government to ask to review these records. The account book of bitcoin is called "block chain". In theory, it is a public document (anyone can download a ), but the participants of bitcoin system can easily hide their identity, because bitcoin is sent to the address randomly generated by electronic money package, which is composed of letters and numbers. In other words, I can provide a new address for each transaction. So even if people can figure out how much bitcoin they can get, they won't know if I have bitcoin

Where can I get bitcoin? One way is through "mining.". This method is by no means easy, and the computing power required for "mining" is now more than most people can afford (according to the design of bitcoin system, it will be increasingly difficult to find bitcoin). I know it's too simple to say that. The fact is that bitcoin's revenue and expenditure books are jointly maintained by "miners" all over the world. Most of the "mining" groups (more than 60000 users) that "miners" participate in spend a lot of time and power, and some of them can get bitcoin. For the majority of non professionals, it is much easier to buy bitcoin online on the bitcoin "exchange" with regular currency. Until recently, Japan's Mt. GOx was the world's largest bitcoin "exchange.". In China, bitcoin "exchange" BTC China has the longest history
I'm not surprised that China has quickly become a major bitcoin market because bitcoin has performed so well as a private trading channel. It is estimated that in 2013, the trading volume of bitcoin in China (including Hong Kong) accounted for more than half of the global trading volume, and more than 100000 bitcoins were traded in "bitcoin China" every day. People's interest in bitcoin has increased greatly, especially in China, which has led to a significant increase in the value of bitcoin, from about $0.08 in June 2010 to $1124.76 in November 2013. This led to reports that a Norwegian man bought 5000 bitcoins for $26.60 in 2009 and sold them for $886000 in 2013
unfortunately, those who bought at the peak have found that their bitcoin has almost halved in value - the current price of bitcoin is less than $600. What's wrong
for some investors, it is a problem that bitcoin has no physical form. For example, the Norwegian man mentioned above forgot his e-wallet password and had to take great pains to delete and rebuild it. Mt. GOx is much larger. It stopped trading on February 25, 2014, and then filed for bankruptcy protection in Japan and the United States because it lost about 550000 bitcoins, which were worth $473 million at that time, accounting for 7% of all bitcoins in circulation. Attorneys for Mt. GOx said in court that the reason for the loss of the bitcoin may be that "there is an algorithm defect in the bitcoin software, and someone has used this defect to invade the bitcoin network.". Investors usually stay away from such risks that they cannot understand
however, the bigger problem with bitcoin is that the Chinese and US governments are not friendly to bitcoin. In December 2013, the people's Bank of China banned financial institutions from engaging in bitcoin trading, saying that bitcoin is not a "real" currency. The bank made it clear that investors were free to participate in bitcoin trading, but at their own risk. Analysts pointed out that the Chinese government is worried that bitcoin trading by financial institutions will threaten the government's control over the financial instry, especially in terms of money supply and cross-border money flows. Before too many parts of the economy become "invisible" and untraceable, the Chinese government must act< Almost at the same time, U.S. Department of Homeland Security agents detained more than $5.1 million of bitcoin in Mt. GOx's account. They said the money came from a criminal network called silk road. In January 2014, a director of MT GOx was charged with money laundering. However, the U.S. government did not declare bitcoin illegal. Instead, after explaining the tax law, it used an unconventional means to punish users of bitcoin. In March 2014, for example, the Internal Revenue Service announced that bitcoin was an asset, not a currency. This has a significant impact. For example, if an American taxpayer buys $500 of bitcoin and then uses them to buy $1000 of goods e to the rising market price of bitcoin, he has to pay tax for his income. If the taxpayer purchases foreign currency, he does not need to pay tax when the foreign currency appreciates against the US dollar. In addition, bitcoin miners must declare the value of bitcoins by the date they were discovered, not by the time they were spent. In other words, bitcoin related taxes need to be paid immediately, even if the "miner" intends to keep these bitcoins for a few years. Recently, the U.S. government announced that it would transfer the bitcoin detained from "Silk Road", but asked the buyer to show his identity, which would inevitably weaken people's desire to buy and rece the transfer price of these bitcoins

since December 2013, China's official attitude towards bitcoin has not changed. However, the Chinese government does not allow domestic banks to do business with bitcoin "exchanges", especially in transferring RMB deposits from personal accounts to "bitcoin China". On April 28, 2014, bitcoin China said on its microblog that its user account had voluntarily stopped accepting RMB deposits. Since then, China has not encouraged bitcoin "exchanges" to allow users to withdraw Renminbi from their accounts. The future of bitcoin in China is not good, only Hong Kong may be an exception; At the same time, there are bitcoin ATMs in Hong Kong
but as far as the investment risk of bitcoin is concerned, the government's view may be reasonable. Recently, it has been reported that a "mining" group has controlled more than half of the bitcoin computing power, which may enable the group to veto bitcoin transactions verified by other "miners", or reuse the same batch of bitcoin without fear of being questioned. For most people, these problems can be too complex to solve. However, in mid June, Peter Chen, the main developer and advocate of bitcoin, made a breakthrough; Peter Todd, who sold half of his bitcoin, said: "I've learned that the factors that make bitcoin motivating are flawed, for a number of reasons. To say the least, even if only a few of the main reasons are taken into account, it will make people worried when a mining group controls 50% of its computing power. "

4. In fact, there is nothing to pay attention to, just trade according to the process. Since the resumption of bitcoin withdrawal, the OTC trading volume of bitcoin has declined, but Chinese businessmen and business people do not want the OTC trading to stop. Start with the OTC guarantee platforms in China, and get familiar with OTC transactions on these platforms, just like Taobao, start with small orders and accumulate trust in customers.

5. This still depends on the resources. Professional mining machines are very profitable, and ordinary mining machines may be suspended. Look at the flow of ore mining, we know that the super miner's income is more cattle.

6. 1. Walk 230 meters from Shenzhen Bao'an airport to terminal B of Bao'an airport, take airport line 7 (take 9 stops) to Lihu Garden Station, then transfer to m379 Road (original 662 Road) (take 5 stops), 310-315 Ring Road (315 Road) (take 6 stops), 312 Road (take 6 stops), m378 Road (original 616 Road) (take 6 stops), m267 Road (original 942 Road) (take 6 stops) to Buji Street (Buji xinyijia) station. Take a taxi for 35.7 km, green Taxi: the cost is about 110 yuan. 3. Walk about 250 meters from Shenzhen Bao'an airport to entrance D of East Station of Metro Airport, take subway Luobao line (line 1) (6 stops) to Bao'an central station, then transfer to Metro central line (line 5) (18 stops) to entrance B of Buji station. About 960 meters (1.0 km by taxi, green Taxi: about 8 yuan). After 23:00 p.m., the cost is about 8 yuan; Red Taxi: about 13 yuan. After 23:00 p.m., the cost is about 13 yuan) to Buji central square

7. Online banking of Bank of communications has the function of settlement and sale of foreign exchange, but it must open the registered version of online banking, SMS version / certificate version. It can exchange RMB and foreign currency in financial management, but it is not real-time. There will be an approval process, but it will be very fast.