Bitcoin wallet block backup

1. bitcoin core is an official client used to manage the private key of bitcoin. Having the private key of the bitcoin address means having the control right of the corresponding bitcoin. Once the private key is lost, it cannot be recovered. Therefore, it is very important to back up the wallet
the wallet file of the wallet client is the database for storing the private key of bitcoin. Both the private key and the public key are stored in the wallet.dat file of the bitcoin wallet. Keeping wallet files securely in multiple locations prevents bitcoin from being recovered in the event of an accident
wallet file location
Windows XP - C: & # 92; Documents and Settings\{ username}\ Application Data\ Bitcoin\ wallet.dat
Windows 7/8 - C:\ Users\{ username}\ AppData\ Roaming\ Bitcoin\ Wallet. Dat
Mac OS X ~ / library / Application Support / bitcoin / wallet. Dat
linux ~ /. Bitcoin / wallet. Dat
the above is the default wallet directory of bitcoin core client. If the data directory is specially set, you can search the keyword "wallet. Dat" through windows to the wallet. Dat
my address:

2.

Hello, there are several key points in your question that need special attention. I will elaborate them as follows:

1. in your description & quot; Download a bitcoin wallet software & quot;: This step should be cautious. First of all, your goal is to make bitcoin paper wallets offline. What you want to download is actually [bitcoin offline paper wallets making tool], and these tools are intermingled, and some are even very risky. So what kind of [paper wallets making tool] do you want to choose? It must be an open source (that is, the source code is completely open) proction tool that has been recognized by all of us for many years. After many years, it has experienced the test of time. You can search the Internet for a comparative understanding of this point. It is suggested to search the "secure bitcoin offline paper wallet" to learn more about the comparison and be willing to spend more time

2. to make bitcoin offline paper wallet, it is right to "unplug the network cable". At this time, it is true that the computer you make the paper wallet is completely isolated from the whole Internet, which is the meaning of offline. At this time, you need not worry, because the address and private key of bitcoin wallet are just a certificate, Bitcoin doesn't really need to be put into this wallet (it's totally different from the real wallet, but the network can understand it). The address of bitcoin's wallet is just a record of several public books on the bitcoin blockchain network. Therefore, you can safely use the bitcoin offline paper wallet, The key point is that you actually the private key address of the bitcoin offline paper wallet onto the paper, and ensure that there is no mistake. Save the public key to receive other people's bitcoin transfer. Then, the bitcoin offline paper wallet you generate will be fully recognized by the bitcoin network

3. it is mentioned in your problem description that "I write down the public key and private key with paper, then smash the computer to pieces, and then burn down the host screen with fire" - this is not necessary at all. As long as you unplug the network cable in the process of offline making bitcoin offline paper wallet, no one can peek at your screen, So as long as you choose the secure bitcoin offline paper wallet tool, the wallet you get will be secure. Of course, the most important thing is that you should store the note with the private key of the bitcoin offline paper wallet in a fireproof and waterproof safe. As for the computer you use to generate the bitcoin offline paper wallet, you don't need to break it. At most, you can destroy the hard disk. In the safe bitcoin offline paper wallet tutorial searched above, there are detailed instructions on how to do the subsequent processing

4. finally, you mentioned the operation of transferring money to your offline generated bitcoin paper wallet, which is no different from transferring money to any other bitcoin address. The synchronization process is carried out in the whole bitcoin blockchain network and needs to wait, but this is the confirmation process of the whole network

< / OL >

I hope my answer can help you. It is recommended that you fully study before you operate< br />

3. How to mine every day; Share mining tips every day; When the initial physical strength is tight, when it is close to 20 times, you can leave two small monsters without fighting. For example, when the number of monsters reaches 18, you can leave two small monsters, and then dig long-time gems to save your strength. When the physical strength is close to the upper limit, you can kill the two small monsters and start looking for the big boss. This can avoid that you can't find the big boss if you don't have enough medicine. Because mining is mainly for the soul crystal and the golden man, the little monster will appear in your field of vision, and the little golden man will appear in your field of vision + 1, so the larger the field of vision you open, the greater the chance of the appearance of the little monster and the little golden man. The same physical strength, in order to open a larger field of vision, the following mining method is recommended. First, one line is g to the bottom. At present, the deepest mining area is 302, which can be g to about 270. Then, four lines are opened horizontally, which are A copper tin Ruby line, about 30 deep A line of iron violet, about 65 deep Silver Emerald is a line, and other gem ores are a line at 270 depth It doesn't matter about the left and right sides. You need to dig horizontally and don't dig back. You can adjust up and down if you need minerals or rocks that need explosives. This can ensure the maximum range of vision under the same physical strength. When you need certain resources, you can dig along a certain line. In addition, if the field of vision is large, more pink gemstones such as pink diamonds will be proced, which can improve the mining efficiency. It is suggested that novices can open a miner card after digging to the depth of 270. For nothing else, the efficiency of double line mining can be improved a lot. There is no need to upgrade the types of automatic mining, because it does not improve the efficiency of mining. If there is a shortage of ore, you can buy more miners. You must order titanium Titan steel before going to bed every day. Automatic miners are the same as mining areas. Although they can't be used at present, they can't be used in the later stage. Keep at least 4 or 5 explosives, otherwise sometimes you will cry when you meet the little golden man surrounded by stones.

4.

1. During the first phase of the interstellar war, players only need to place the hang up location in the first and second levels of each map, and they will get a crystal ore as well as props. Because the first and second levels can get props once an hour, So players can get 24 crystal ores in one day, and 24 * 7168 crystal ores in seven days

2. During the activity period, players only need to open any treasure box in the mining area to a certain extent to get the crystal ore reward, which is divided into five grades

3. Electronic competition Wallet: ring the activity period, you can get rewards when you recharge to a certain amount, among which you can get crystal ore bag when you recharge more than 30 yuan, and you can get 100 crystal ore when you open the crystal ore bag

accumulatively support 50 crystal ores to obtain: honor fragment * 1000, detonator * 5, troll statue * 5, mysterious stone * 1

5.

Analysis of the role of adventure and mining skills, what are the roles of skills in adventure and mining mobile games, and what are the differences of different skills. Today, I'd like to introce the role of adventure and mining skills{ RRRRR}

< critical hit

class A certain probability causes 150% of the attack power & mdash; 400% of the damage. Some skills can't be dodged, some skills can only be triggered when the enemy's combat power or own combat power is lower than what percentage, and some skills can't be launched until a certain round

< percentage

class It has a certain probability to damage the enemy's current combat power percentage. Heroes with this skill are best placed in the front row. The earlier you trigger, the better. Armor can resist the damage of this ability

< recovery class

It has a certain probability to recover the combat power of your damage percentage or the combat power of the enemy. Hit damage will be resisted by armor, but recovered combat power will not count as armor. When you regain your combat power, you will ignore the enemy's armor

< four dimensional

class Increase your four dimensions, attack, defense, dodge and king

6. The positioning of rx570 graphics card in card a is a high-end mainstream graphics card

the performance output of the graphics card is powerful, which can be competent for all kinds of large-scale stand-alone games and 3D games, and the replacement improves the level of game experience

7. This problem I have encountered, I 2003 system under the wallet, found that the wallet data file is wrong! Thought it was a problem with the 2003 system! Specially modified 64 bit win7, error still! I don't know what's wrong! I feel that I have been following the upgrade of bitcoin wallet all the time! Up to now, it's 1.49M, but no matter how I make it, it's all a mistake! At first, delete all the block chains, only one wallet data file! After the update is completed, you can see that it is normal for a period of time. If you open the wallet for a long time, you will report an error again. After the error is reported, unless the reconstructed data is displayed normally for a period of time again! But still can't solve the problem! Back to the original just built wallet file, just set the password, just set up the collection address data backup out to use, the result is no problem! And all bitcoin is still there! By contrast, when using the 1.49M wallet data file, the record of the latest received bitcoin can't be written in, and then it's OK to look at the data backup file. Anyway, there are no recent transaction records, but there are so many bitcoins, so the error should be here! But I don't know how to solve this problem, I can only use the original wallet backup, fortunately, there is a 300 K backup at the beginning, otherwise it's finished! Now there is no problem, this problem has to be reported to the official!

8. Tools / raw materials
bitcoin
wallet
WinRAR
methods / steps
close the bitcoin client and find the file wallet.dat
WinXP start menu, select "run" and input the following contents: Explorer% appdata% bitcoin
Windows Vista or windows 7, directly input wallet.dat in the "search programs and files" box of the start menu to search
right click on this file and select "add to compressed file...", After that, the following dialog box will appear:

set a file name and check "delete source file after compression"
then click the "advanced" tab:

click "set password..." and enter the same password twice in the pop-up dialog box
click "OK" and then click "OK" again to complete the encryption
5
you will see that the original wallet.dat file in the wallet folder is gone, and an additional. Rar file will appear

6
encryption is successful
end
restore wallet
1
you just need to follow the steps of "backup wallet" (described in the previous experience) to open the wallet folder of bitcoin official client
2
the backup wallet.dat file to this folder, and then overlay the original file< br /> http://jingyan..com/article/f0062228c9f391fbd3f0c8b3.html

9. Listen to this name alone, it's either a fraud company or a pyramid scheme organization. Our country has long stipulated that businesses and enterprises are not allowed to use such names as international, global and China