Bitcoin change code
you can't modify this
because this source code records the development process of bitcoin along the way, the problems encountered in the mining process and the mining difficulty
there is open source code to mine, so no one can change it
This situation must be timely feedback to customer service, to retrieve
if bitcoin is stored in the account of the exchange, all the coins are in the big account of the exchange. If the exchange stops trading or goes bankrupt, all the coins belong to the actual controller of the exchange (the person who has the key of the big account)
therefore, if there are official problems in the exchange, we must contact the official customer service in time to retrieve them. In addition, digital assets, blockchain and other technologies will have unpredictable effects, and problems in the development process need to be standardized
extended information:
people who really own bitcoin do not store them on the Internet, but store them on the hard disk. Bitcoin's code is open source, which means that technicians can modify the code to proce a continuous stream of virtual currency
which breaks through the "limited amount" attribute of bitcoin. These virtual currencies can be exchanged with fiat currencies. For example, bitcoin can be exchanged into yen, and yen can be exchanged with almost all fiat currencies in the world
in this case, if the number of virtual currencies increases arbitrarily, there will be problems in the whole international monetary system. Therefore, on September 4, 2017, the central bank stopped the exchange function of the token trading platform, especially the exchange function with legal tender
Two way opening in futures means you can buy or sell
< H2 >futures trading can be two-way trading, futures can buy more or short. When the price rises, you can buy low and sell high; when the price falls, you can sell high and buy low. Long can make money, and short can also make money, so there is no bear market in futures. In a bear market, the stock market will be depressed, but the futures market will still be prosperous and the opportunities will remain
the day of futures settlement can be one week later, one month later, three months later, or even one year later. A contract or agreement to buy or sell futures is called a futures contract. The place where futures are traded is called the futures market. Investors can invest or speculate in futures
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< H2 > extended information:basic system of futures
1. Position limit system
position limit system refers to the system that futures exchanges limit the number of positions held by members and customers in order to prevent manipulation of market prices and excessive concentration of futures market risks on a small number of investors. If the limit is exceeded, the exchange may close the position or increase the margin ratio
Large account reporting system means that when the speculative position of a certain type of position contract of a member or client reaches more than 80% of the position limit (including the principal) specified by the exchange, the member or client shall report its capital and position to the exchange, and the client shall report through the brokerage member