Docking private key of Shanzhai digital currency
DCC belongs to counterfeit currency
and has no value at all
It's not true
the central bank indicated that it has not issued legal digital currency, nor authorized any institutions and enterprises to issue legal digital currency, and there is no promotion team. The so-called digital currency in the market is not legal digital currency
in addition, the so-called digital currency launched by some institutions and enterprises and the so-called promotion of the central bank's issuance of digital currency may involve pyramid selling and fraud. The general public should raise their risk awareness, invest rationally and prudently, and prevent the interests from being damaged. The legal currency of our country is RMB. RMB shall be uniformly printed and issued by the people's Bank of China
extended information:
precautions:
in the whole process of digital currency promotion, we should pay attention to the overall financial stability, guard against risks, and protect consumers, especially in large economies, to prevent big losses. We should test step by step to promote it. We should grasp the direction, and emphasize financial services for the real economy, Prevent excessive speculation
digital money does not need to bind any bank account when it is paid. Unlike WeChat and Alipay, it needs to bind the bank card. DCEP does not need to bind the bank account. Unless it is necessary to charge DCEP or to withdraw money from DCEP, it is unnecessary to transfer account between users and users. p>
Many small white just admission, was the private key, public key, address, and other relations confused. Some of them even lost their private key. They had money on the address, but they just couldn't get it out. Today, Xiao will try to figure out the relationship between the private key, the public key and the address
The relationship among < H2 > private key, public key and address is as follows:the private key is converted into (generated) public key, and then converted into address. If there is bitcoin or integrity coin on an address, the private key converted into the address can be used to spend the above integrity coin. The generation of public key and address depends on private key, so private key is the most important
mobile wallet is the same, but the file management method of mobile phone is not as convenient as computer. Therefore, the general mobile wallet will provide a function called or similar to "export private key". Through this function, the private key can be exported in various forms
for example, bitcoin mobile wallet can be exported as a two-dimensional code, which can be printed or scanned on paper. When replacing a mobile phone, install a bitcoin wallet and scan the QR code to migrate bitcoin. Bitcoin mobile wallet and trustcoin mobile wallet can be exported as a clear text string and printed on paper - this is paper wallet
paper wallet allows users to spend your bitcoin or trustcoin at any terminal with bitcoin or trustcoin wallet
because the wallet is lost or damaged, the private key will be lost, and the transfer right of the digital currency will be lost completely. To prevent such tragedies, you should always back up the data in your wallet. In addition to the address, all the private keys are saved ring the backup
< H2 > summary-
the private key should be protected to prevent loss and forgetting. When the mobile phone clears the information, it is best to it by hand, but do not disclose it
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you should prevent your wallet from being lost or damaged, resulting in the loss of your private key and the loss of the transfer right of digital currency. Otherwise, you will not be able to withdraw more money, which is not useless
don't be cheated
coinbase transaction is a special transaction that generates bitcoin "out of thin air". Only miners can write this kind of transaction, and the number of generated bitcoin is limited by rules (new currency reced by half for every 210000 blocks + transaction fee for this block)
however, the rules do not stipulate that the miner must take away all the rewards that can be taken, and can choose not to take them
therefore, a mine pool connected with the RSK side chain has made a bug before, forgetting to take away the reward and occupying a pit in a block for nothing, which is equivalent to destroying the corresponding amount of bitcoin, making the total amount of bitcoin decrease a little bit permanently
in addition, to spend a bitcoin, you only need to specify the transaction ID and output serial number
as like as two peas in multiple blocks repeatedly write identical coinbase transactions, the transaction ID is also repeated.
therefore, this kind of situation also occupies the pit of a block in vain, and permanently destroys the corresponding amount of bitcoin
it seems to me that this is still a security vulnerability, so the new version of bitcoin software later banned the writing of repeated coinbase transactions. But until now, there has been no ban on miners not getting their e rewards
generally speaking, a coin is controlled by a private key. If a coin is transferred to an address where no one knows the private key, it will be destroyed
if the owner does a good job in security, and the private key is not disclosed and cannot be guessed, but he accidentally loses the private key, it is equivalent to destroying all the coins he owns
there are only some special circumstances that require intentional destruction of coins
one is irreversibly converted into another kind of currency, such as the contract currency XCP attached to bitcoin and wormhole cash WHC attached to BCH
the second is to save certificates and data on the chain, such as the time stamp: panbiao.com/2013/08 /
and the crowd funding of the original Ethereum founding team: zhuanlan.hu.com/p/29
the private key is essentially a big number. Whoever knows this number can control the currency on the corresponding address. So the private key must be generated with reliable random number, otherwise it may be guessed and stolen
compared with the token, the address is the hash of the public key. There is no way to judge whether an address has a corresponding public key and private key (even if the public key is known, the corresponding private key cannot be known). Therefore, even if it is explicitly the address of "burned" token, the system does not prohibit the transfer in
strictly speaking, what locks the currency is a small program (script). This program takes the input as the public key and digital signature. First, check whether the public key hash is consistent, and then check whether the digital signature is valid. If it is valid, it will be verified and transfer is allowed; Otherwise, it will be judged that the transaction is illegal and refuse to package into the chain
it is the whole node software that explains and executes this program. It can be said that the software code of the whole node specifically defines a coin
however, the current situation is very embarrassing. Most miners do not run the whole node, only a few mines are running. The vast majority of users do not run the whole node, even if they run the whole node, they can only perform verification, no computing power, no block.
There are so many beautiful sceneries in Beijing, even if we are on the road all the time, we can't see all the beautiful sceneries here! Xiaobian to recommend a few of the most beautiful Beijing! Waterfalls, canyons, lakes, caves, grasslands are all there, hurry to look down
The first waterfall of Kyoto is located in liukeyu, Shicheng Township, Miyun County, Beijing, 103 kilometers away from Beijing. It is composed of spring water from Yunmeng Mountain, with a drop of 62.5 meters and a slope of 85 degrees. It is the largest waterfall in the suburb of Beijing. Walking into the canyon, I heard the sound of the waterfall before I saw it. Water from the cliff straight down, such as jade pillars, magnificent. Silver splashed, clouds filled. The pool under the waterfall is large and strange, and unfathomablethe first waterfall in Kyoto
admission: 30 yuan
address: beishicheng village, Shicheng Township, Miyun County
self driving route: exit 16 of Beijing Chengde Expressway - direction of Miyun County - go straight along the road to Miyun Reservoir - turn left at the T-shaped intersection, and there are signs along the road about 20 km to reach the first waterfall natural scenic spot in Kyoto
bus route: take No. 980 or 987 at Dongmen to Miyun County, and then transfer to the small public bus to Shicheng Town