Bitcoin version
bitcoin is a kind of virtual encrypted digital currency in the form of P2P. Different from all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, And the use of cryptography design to ensure the security of all aspects of money circulation. However, on September 4, 2017, the central bank and other seven ministries and commissions announced that virtual currency trading is prohibited in China, and bitcoin is prohibited from circulating in China
according to the first article of the notice on preventing the financing risks of token issuance, we should accurately understand the essential attributes of token issuance financing activities. Token issuance financing refers to the illegal sale and circulation of tokens by the financing subject to raise the so-called virtual currency such as bitcoin and ether coin from investors. In essence, it is an unauthorized illegal public financing behavior, which is suspected of illegal sale of token bills, illegal issuance of securities, illegal fund-raising, financial fraud, pyramid schemes and other illegal criminal activities
Relevant departments will closely monitor relevant developments, strengthen cooperation with judicial departments and local governments, strictly enforce the law in accordance with the current working mechanism, and resolutely deal with market chaos. If suspected crimes are found, they will be transferred to judicial organs. The token or "virtual currency" used in token issuance financing is not issued by the monetary authority, does not have such monetary attributes as legal compensation and compulsion, does not have the same legal status as currency, and cannot and should not be used as currency in the market 
extended information:
Article 3 of the announcement on preventing the financing risk of token issuance strengthens the management of token financing trading platform. From the date of this announcement, any so-called token financing trading platform shall not engage in the exchange business between legal tender and token and "virtual currency", nor buy or sell token or "virtual currency" as a central counterpart, nor provide pricing, information intermediary and other services for token or "virtual currency"
for the token financing trading platform with illegal problems, the financial management department will request the competent department of telecommunications to close its website platform and mobile app according to law, request the network information department to remove the mobile app from the app store, and request the instrial and commercial administration department to revoke its business license according to law
Article 4 financial institutions and non bank payment institutions shall not carry out business related to token issuance financing transactions. All financial institutions and non bank payment institutions shall not directly or indirectly provide procts or services such as account opening, registration, trading, clearing and settlement for token issuance and financing and "virtual currency", nor undertake insurance business related to token and "virtual currency" or include token and "virtual currency" into the scope of insurance liability. Financial institutions and non bank payment institutions shall report to the relevant departments in a timely manner if they find clues of violation of laws and regulations in token issuance financing transactions
unlike all currencies, bitcoin is not issued by a specific monetary institution. It is generated by calculation based on a specific algorithm
bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions
the total number of bitcoins is limited
this answer is provided by KangBo finance and economics. KangBo finance and economics focuses on the interpretation of financial hot events and the popularization of financial knowledge. It adheres to the profession and pursues fun. It is a financial content that people can understand and transmits financial value in a variety of vivid ways. I hope this answer will help you.
bitcoin cash (BCC) is a new version of bitcoin with different configurations launched by a small number of bitcoin developers. It is a new type of blockchain asset. At 20:20 on August 1, 2017, bitcoin cash starts mining, and each bitcoin investor's account will have the same amount of bitcoin cash (BCC).
two key figures in the bitcoin field have developed another version of bitcoin. They are Gavin Andresen and Mike Hearn, the chief developers of bitcoin
for several months, Anderson and Hearn have been arguing with the other three chief developers of bitcoin: whether the blocks processed in bitcoin transactions should be further expanded from the current 1MB, so as to be able to process more than three payments per second
this new version of bitcoin, called bitcoin XT, increases the capacity of the block to 8MB and can complete 24 transactions per second. Although it is far lower than visa's processing speed of 20000 transactions per second, it will increase every year in the future, so bitcoin will continue to grow
opponents of bitcoin XT believe that increasing the block capacity may undermine the original intention of this decentralized payment system, because the extra computer memory requirements may crowd out thousands of independent "nodes" from the network< Some people think that this split marks the end of bitcoin. But he told Reuters on Tuesday that the cryptocurrency will continue to exist, whether or not it is accepted
"if we thought it might ruin bitcoin's future, we wouldn't do it." He said. He added that since last Saturday, about 10% of the nodes have agreed to use bitcoin XT.
with the increasing capacity of bitcoin blockchain data, the client wallet data is installed on Disk C by default. If Disk C is not large enough, you need to find a way to move the data from disk C to other disks
examples are as follows: (Note: close the client first)
1. Find bitcoin's data folder:
XP --- C:; Documents and Settings; username; Application Data; Bitcoin
vista,win7---C:; Users; username; AppData; Roaming; Bitcoin
2. Copy this bitcoin folder to other disk with large space, such as disk D (to avoid operation error, it is recommended to it first and delete disk C after it runs normally, so as to save disk C space)
3. Edit the bitcoin shortcut on the desktop (if there is no shortcut on the desktop, there are two ways: one is to find the installation folder, find "bitcoin QT. Exe", right-click, and select Create Shortcut to cut the shortcut to the desktop or any location; For the second method, if it is a green installation free version, you can find this installation folder, find "bitcoin-qt.exe", right-click and select Create Shortcut to cut the shortcut to the desktop or anywhere.) Right click on the shortcut, select "properties", enter the following in the "target" column, and confirm:
C:; Program Files; Bitcoin; bitcoin-qt.exe -datadir=D:; Bitcoin
now, double-click the bitcoin shortcut on the desktop, and the client will start. In the future, all data updates will be stored in disk D, and disk C will no longer occupy space. This method can also avoid the re installation of the system and delete the C disk, resulting in data re installation, and can also protect the wallet file.