Storage location of bitcoin data block

1. The concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations 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, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has scarcity
after bitcoin transaction data is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed. Bitcoin P2P stores all transaction history in a "blockchain.".

2. Can be transferred to other disk, or even transferred to the mobile hard disk, portable

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: & # 92; 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:

& quot; C:\ Program Files\ Bitcoin\ bitcoin-qt.exe" - datadir=D:\ Bitcoin
(red is the target location of the added part)

now, double-click the bitcoin shortcut on the desktop, the client will start, and all data updates will be stored in disk D, and disk C will no longer occupy space. This method can also avoid data re download caused by deleting Disk C e to system re installation, and can also protect wallet files.

3. 1 ` if I give the player the dream coin, but he says I didn't, what should I do? What can be used as evidence of a transaction
you can record the whole video of the game and record the transaction process.
2 ` if I don't give the player the dream coin, but I give it, what should I do
it's a good thing to be more human, not bad

4. The full name of the CDC's HIV testing is HIV counseling and testing. It provides counseling and testing for people who have high-risk behaviors or doubts about AIDS. It evaluates high-risk behaviors and answers questions, so as to decide whether HIV testing is needed. The testing includes preliminary screening test and confirmatory test. After the initial screening negative exclusion window period, no further testing is needed, If the initial screening is positive, the AIDS confirmation test should be carried out. If the initial screening is positive, it indicates that the patient has been infected with HIV, and if the initial screening is positive, the infection should be excluded. The process knows that the time required varies from person to person. HIV counseling and testing is free and confidential, which is stipulated by the state.

5. 1. There is no best way to say which version of the graphics card driver is the latest or the best
2. If the driver of the graphics card is normal and does not affect the normal use of the computer, you can update it without selecting a higher version of the driver
3. Because the driver of higher version may not be completely suitable for the currently used graphics card, even the officially provided graphics card driver may lead to blue screen and crash after updating the driver
4. If the performance of the graphics card is worse than before, or the performance is unstable, you can try to update the driver of the graphics card. If the new version of the driver is suitable for the current graphics card and compatible with the system, the performance of the graphics card can be better played

6. To detect AIDS, we usually go to two places

1 to people's Hospital for examination, and then go to dermatology or infection department or urology department; Explain your condition to your doctor and ask for a test; Blood test - & gt; Take the results
2 to the CDC in the city for testing, you need to show your ID card, and record your name and contact information, and then a doctor will talk with you to determine whether you need testing, and then test
it is free to go to CDC for testing.

7. In Daming dragon power, after the role level reaches level 15, you can find the mine owner Wu Datong in bashiling. After completing the task of "unclean mine cave", you can get the corresponding amount of ore (the amount of ore depends on the level. The higher the level, the more ore you get). Note: 20 times of "unclean mine" tasks can be completed every day. Adopted
thank you

8. Should not need formalities, go to check it