Is digital bitcoin still valid
Publish: 2021-05-28 19:38:01
1.
To guard against the possible risks brought by bitcoin, we know that digital currency represented by bitcoin has high risks. This kind of risk is mainly reflected in two aspects: first, the limitation of digital currency makes it used as investment goods, and the price is extremely unstable. Those who do not understand the principle of digital currency and pay too much attention to speculation are easy to suffer losses for various reasons
Secondly, national digital currency is linked to its own legal currency to a certain extent, so it effectively avoids the price volatility of bitcoin. Because the CBDC issued by our country is guaranteed by the credit of the central bank, it must be a stable currency. In today's international situation, the research and development of digital currency in China is of great significance. The introction of digital currency is not an expedient measure, it has become the development direction of China's future currency2.
I can't buy it
the price of bitcoin rises and falls suddenly, which is very similar to the stock in the game Monopoly 4 played when I was a child, but I don't recommend you to buy it
The reasons are as follows: when we make any important financial decision, we must distinguish between investment and speculation it's just like sleeping, whether you sleep with your girlfriend or with your girlfriend's best friend is a matter of two natures
some inconvenient words are written in the public micro signal "Wu Handi ID:whdkad" (WeChat ID:whdkad), the official account replied "useful" with surprise. strong>
3. The issue of bitcoin is determined by the block height, that is, the distance from the No. 0 block of Genesis. Now when the number is reached, the total amount of bitcoin should be limited. After this village, there will be no store. If the miners dig a block but don't receive the reward of the block, the bitcoin will be destroyed forever
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.
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.
4. Yes, it depends on what money you dig. I personally recommend eco and RCO mining coins, because you can easily find them with your ordinary desktop and notebook at home. Then withdraw the money and exchange it for cash
5. The significance of bitcoin Mining: distribute the initial bitcoin
opponents of bitcoin accuse mining of wasting a lot of resources to make meaningless coin toss, while supporters take gold mining as an example. For the bitcoin system, the biggest significance of this kind of resource consumption mining is: to distribute 21 million initial bitcoins fairly, just like to consume resources to dig gold, the only way to distribute initial bitcoins fairly is to consume resources to dig bitcoins
bitcoin has thousands of plagiarists, competitors and improvers because of its open source code. Generally, those who simply and imitate bitcoin are called Shanzhai coins, and those who add certain new features to bitcoin are called competitive coins. Some coins add other functional moles such as smart contract to bitcoin, and call themselves "second generation coins". These thousands of coins try all the initial coin distribution modes you can imagine, such as the average distribution of the initial coin to each Icelandic, the distribution of the initial coin to the nextcoin of 73 crowd funding participants, and the slow distribution of the majority of the initial coin by the developer
but the fairness of all these ways of distributing initial coins is far weaker than the mode of burning money to obtain initial bitcoin, and fairness is the core problem of a monetary system. Therefore, although bitcoin mining consumes a lot of resources, it is a reasonable economic behavior just like consuming resources to mine gold.
opponents of bitcoin accuse mining of wasting a lot of resources to make meaningless coin toss, while supporters take gold mining as an example. For the bitcoin system, the biggest significance of this kind of resource consumption mining is: to distribute 21 million initial bitcoins fairly, just like to consume resources to dig gold, the only way to distribute initial bitcoins fairly is to consume resources to dig bitcoins
bitcoin has thousands of plagiarists, competitors and improvers because of its open source code. Generally, those who simply and imitate bitcoin are called Shanzhai coins, and those who add certain new features to bitcoin are called competitive coins. Some coins add other functional moles such as smart contract to bitcoin, and call themselves "second generation coins". These thousands of coins try all the initial coin distribution modes you can imagine, such as the average distribution of the initial coin to each Icelandic, the distribution of the initial coin to the nextcoin of 73 crowd funding participants, and the slow distribution of the majority of the initial coin by the developer
but the fairness of all these ways of distributing initial coins is far weaker than the mode of burning money to obtain initial bitcoin, and fairness is the core problem of a monetary system. Therefore, although bitcoin mining consumes a lot of resources, it is a reasonable economic behavior just like consuming resources to mine gold.
6.
The reasons why bitcoin is digital gold are as follows:
1. Bitcoin has the highest market value among digital currencies and is also the foundation of digital money market
The total amount was limited3. The proct of the development of the Internet, which has no institutional or national support, is fair
Its value is graally recognized by the public Compared with gold, it is more convenient for identification, segmentation, carrying and storage Programmable currency can meet the needs of charity and government to solve corruption{ RRRRR}7. Useful should be useful, but it seems illegal in China. It's just a virtual commodity. It can't really be used as currency.
8. The value of. IO is increasing day by day. The real global domain name upstart has created a new world for the crowded domain name world, providing you with a variety of choices and new opportunities
for all people in the world,. IO is the most direct and intuitive symbol that can be used to express information and knowledge on the Internet
. IO can also be understood as [input to output], which means "I / O interface"
therefore, when you search for information on the Internet,. IO is the most intuitive and natural symbol. No matter who you are or where you are,. IO can help you quickly find the information you need.
for all people in the world,. IO is the most direct and intuitive symbol that can be used to express information and knowledge on the Internet
. IO can also be understood as [input to output], which means "I / O interface"
therefore, when you search for information on the Internet,. IO is the most intuitive and natural symbol. No matter who you are or where you are,. IO can help you quickly find the information you need.
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