btclocal
secondly, if bitcoin trading is prohibited in China, it is necessary to buy and sell bitcoin through local bitcoins: users need to register account information (user name, password and email) through VPN network
in addition, bitcoin trading can only be carried out after real name authentication with a registered account
users can select the currency of the transaction and the payment method of the transaction when they find the trading information of bitcoin
it is a reminder that bitcoin trading has certain risks as well as benefits, which needs rational choice.
Bitcoin has been a hot topic in the past two or three years. Although Greyhound sports team did not participate in bitcoin speculation, Jason's good friend Roy in Berkeley is a good one. At the end of the European Cup, Jason managed to persuade Roy to share his experience in bitcoin arbitrage in the past few years
Roy and greyhound sports guarantee the truth of the story, but we are not responsible for the loss of you who are interested in carrying out relevant investment speculation through the inspiration of this story
(the following is Roy's first person narration:)
focusing on bitcoin is around 2011. At that time, I met my classmate Michael who drank too much in the school bar. Michael told me that he had spent 10000 dollars to buy 1000 bitcoin before, and now he has made 10 times as much. And talk about the significance of bitcoin for deflation and inflation, as well as his bullish bitcoin investment opportunities
my interest comes from the statistics of bitcoin price changes, so I wrote some crawler data in my spare time. While I was crawling data in the room, my good friend Roman came to visit me. Roman likes to trade by himself, so I told him about bitcoin. As a result, Roman was more energetic than me. A few days later, he called me and said that the price difference between exchanges was too big. Why didn't anyone arbitrage? I said indifferently that it might be caused by some trading restrictions. As a result, we two began to study how to arbitrage and found the real reasons for such a large price difference:
1
2. The transfer chain of bitcoin (between two exchanges) takes 5 to 60 minutes (this time is related to the principle of bitcoin) - the price fluctuation ring this period is enough to kill most of the profits
3. At that time, the biggest price difference was between China and the United States. However, e to the control of RMB, the capital could not flow back and the liquidity between the markets was poor
in response to these three problems, we came up with countermeasures at that time:
1. We tried to find an exchange that could be registered. At that time, bitcoin exchange was full of money, and people would continue to register
2. If the price difference between exchanges is large enough, we are not afraid of the 5-60 Minute Fluctuation - there is a high probability that we will make a profit
3. There are many ways to find exchange channels, which should be hopefully solved
at that time, there was no website that could directly buy US dollars, but there were many exchanges for RMB, the biggest of which was btcchina. We searched for a long time and found a website called local BTC. The general idea is that you can reserve bitcoin and then form a potential transaction. The website will help you freeze some bitcoin of the seller. After you transfer money, this bitcoin will belong to you. The equivalent of Local BTC has assumed the function of a Alipay. p>
in the first deal, we bought 0.94 bitcoin, which is unforgettable. This single transaction earned 30%, so happy that I don't want it. To solve the practical problem, we need to find a place where we can buy a lot of bitcoin in the United States. Local BTC is full of retailers, the number is too small, and the largest exchanges in the United States, such as Mt. GOx, have closed their registration. At this time, we found that it is possible for the Canadian exchange virt ex to register, but it is necessary to register a company. Just when we were going to register a company in Canada, we found that the domestic bitcoin players were frantically squeezing the existing profit margin. At that time, the bitcoin price difference between the two places was maintained at 30% - 50% for a long time, so many domestic bitcoin players with U.S. exchange accounts bought a lot of bitcoin and sold it in China. After selling it in China, they exchanged 8:1 exchange rate for us dollars in Taobao (at that time, the exchange rate between China and the United States was already 6.2x), and continued to arbitrage, which made the price difference between the two sides shrink rapidly. We feel that the profit margin will not exist until we have a good Canadian account
when there is no way out, our data tell us a turning point. After careful analysis, it is found that there is often a big price difference among several RMB exchanges: BTC China, huoyuan.com and okcoin, and it is very convenient to open three accounts. At the same time, domestic exchanges are the first to provide the function of borrowing bitcoin, which makes us begin to imagine whether we can arbitrage between RMB exchanges
is it to buy directly in the low price exchange, then transfer directly to the high price exchange, and then sell? It seems very simple, but you also need to bear the 5-60 Minute Fluctuation of transfer price, because you have no hedging
At this time, Roman came up with a new arbitrage method. It is to buy and sell the same amount of bitcoin in two different markets. Once the price gap widens, it will sell and buy the same amount of bitcoin at the same time to complete arbitrage. Then wait for the price difference between the two exchanges to narrow. But the core problem is that sometimes the prices of the two exchanges will not really reverse. For example, the price of BTC China is higher than that of huocoin.com for a long time. What should we do at this time? At this time, you need to calculate the average level of the price difference between the two sides, and buy and sell back and forth when the price difference fluctuates. This process of buying and selling may be a loss, but it is generally profitable 
all free revelations can be found in the app of the ball dealer, and log in to www.ballq.cn Download app
the number of writers of ball dealers has exceeded 1000, and all leagues and leagues are included
Vacheron Constantin, one of the world's most famous watch brands, was founded in 1755 in Geneva, Switzerland. It is the world's oldest and earliest watch manufacturer, and also one of the world's most famous watch manufacturers
Vacheron Constantin inherits the traditional tabulating essence of Switzerland. It has not stopped, but has also created many tabulation techniques and made great contributions to the watch making instry. Throughout the 20th century, John J. Denton introced a number of unforgettable designs. From simple and elegant style to exquisite and complex design, from daily wearing style to precious diamond watch, each one represents the top-notch watch making technology of Swiss high-grade watches, reflecting the outstanding position of Constantine in the world watch instry and his pursuit of technology and aesthetics. After two and a half centuries of ups and downs, Constantine is still one of the most famous brands in the watch instry.