Tree brother interprets Ethereum Baidu cloud
Publish: 2021-05-01 19:52:12
1. At the top of Ethereum is DAPP. It exchanges with the smart contract layer through Web3. JS. All smart contracts run on EVM (Ethereum virtual machine) and use RPC calls. Below EVM and RPC are the four core contents of Ethereum, including: blockchain, consensus algorithm, mining and network layer. Except DAPP, all other parts are in the Ethereum client. The most popular Ethereum client is geth (go Ethereum)
2. bitcoin cash (BCH) is a branch of bitcoin. In fact, in addition to bitcoin cash, bitcoin also has many bifurcated currencies. What does bifurcated currency mean
section one: why do you split up when you don't say a word
the concept of bifurcation originated from bitcoin
as we know, bitcoin trading is based on bitcoin blockchain network (one block by one forms a chain of front and back Association, forming a bitcoin blockchain network). Since a block is a block, it must have capacity (let's fill in the block, it is nothing more than a collection of codes), The size of the block capacity will limit the efficiency of the transaction. If the block capacity is too small, the smaller the number of transactions will be. Once the transaction volume is too large, it will cause congestion
the capacity of bitcoin block is only 1m, and it can hold only 5-7 transactions. In the past, there were relatively few users for bitcoin transactions, so this capacity is no problem. However, with the rise of bitcoin price, more and more users swarmed in, and the bitcoin block could not accommodate so many transactions, resulting in congestion
bitcoin is anxious: slow down, brother Dei, I can't keep up with your trading speed. Hello! Users are also anxious: brother, can you hurry up
this is a big problem, not only because we have limited patience, but also because bitcoin's positioning is currency. As a currency, you should pay and collect money quickly, accurately and ruthlessly. If you are always so slow, when can you realize the currency attribute? So, this is a big problem
of course, the bitcoin community knows the importance of this problem. As for how to solve this problem, the bitcoin community is divided on whether to expand the capacity of bitcoin blocks (as we have just said, it is too little capacity of bitcoin blocks that leads to slow transaction speed and congestion)
the controversy is mainly divided into two camps:
the original development team of bitcoin, led by core, believes that bitcoin is an electronic gold of value storage, which will destroy its core once it is expanded
however, the mining team led by Wu Jihan believes that bitcoin should be a kind of currency with rapid circulation in the future, and it needs to be expanded to solve the problem of transaction congestion. Because of the decentralized nature of the blockchain, no indivial or organization can decide how to "expand" the bitcoin system. Everyone has their own opinions, and their opinions are divided. No one is willing to give in. Therefore, everyone goes their own way. The bitcoin chain has split into BTC and BCH chains, and over time it has evolved into the so-called "bifurcation"
this is the origin of bifurcation
what happens after the second section bifurcates
for blockchain, bifurcation is the change of blockchain protocol, which is similar to upgrading the blockchain to make up for the shortcomings of the system. This is just like our current mobile phone software often prompts you to upgrade
however, we know that blockchain is decentralized. Unlike your mobile software, developers can upgrade when they say so. In the world of blockchain, any modification needs the consensus of all members. No one can decide when to change or how to change the underlying agreement of blockchain
therefore, when the original development team of bitcoin and the miner team have differences, the system will be divided into two parts, and two new systems based on the original blockchain will appear. Everyone has their own problems, and no one can intervene. In this way, the bitcoin system is divided into two chains: BTC and BCH, which are called "bifurcations", and BCH is called bifurcated currency (the bifurcated currency of bitcoin)
in fact, not only BCH, but also bitcoin has many bifurcated coins. Why is BCH the first thing to think of when it comes to bifurcated currencies? This is because BCH is a successful bifurcated currency. When its market value is the highest, it ranks the fourth in the list of cryptocurrencies, next only to bitcoin, Ethereum and EOS
section 3 hard fork and soft fork
let's make a metaphor: if bitcoin system is the trunk of a big tree, then BCH and other fork coins are the branches of the tree. However, bifurcation is not as simple as this metaphor. It can be divided into hard bifurcation and soft bifurcation
first, hard bifurcation: goodbye, never see again
the BCH we mentioned above belongs to hard bifurcation. Hard bifurcation means that nodes using old software can no longer verify blocks proced with new software nodes. If you want to verify, you can only upgrade. After upgrading, it is equivalent to changing the track and running on another new system. Just like BCH to BTC, BCH is a brand new track (a brand new chain), and the coin on this chain is BCH (bitcoin cash). Then, nodes using BCH system can no longer go to BTC network for transaction verification. Hard bifurcations, generally speaking, mean going their own way. There is no intersection any more< Second, soft bifurcation: getting better to meet again
soft bifurcation is opposite to hard bifurcation. Soft bifurcation means that nodes using the old version can verify the blocks proced by nodes using the new version, and nodes using the new version can also verify the blocks proced by nodes using the old version. The two versions are compatible
the way bitcoin upgraded its isolation witness in 2017 is soft bifurcation. In the whole process, it doesn't matter whether we use the old version or the new version, because they are compatible. The new version only solves some problems better. In essence, we are still running on the bitcoin chain, and there is no new coin
to sum up, the difference between soft fork and hard fork is whether nodes using old software can be compatible with nodes using new software. Compatibility is soft fork, while incompatibility is hard fork.
section one: why do you split up when you don't say a word
the concept of bifurcation originated from bitcoin
as we know, bitcoin trading is based on bitcoin blockchain network (one block by one forms a chain of front and back Association, forming a bitcoin blockchain network). Since a block is a block, it must have capacity (let's fill in the block, it is nothing more than a collection of codes), The size of the block capacity will limit the efficiency of the transaction. If the block capacity is too small, the smaller the number of transactions will be. Once the transaction volume is too large, it will cause congestion
the capacity of bitcoin block is only 1m, and it can hold only 5-7 transactions. In the past, there were relatively few users for bitcoin transactions, so this capacity is no problem. However, with the rise of bitcoin price, more and more users swarmed in, and the bitcoin block could not accommodate so many transactions, resulting in congestion
bitcoin is anxious: slow down, brother Dei, I can't keep up with your trading speed. Hello! Users are also anxious: brother, can you hurry up
this is a big problem, not only because we have limited patience, but also because bitcoin's positioning is currency. As a currency, you should pay and collect money quickly, accurately and ruthlessly. If you are always so slow, when can you realize the currency attribute? So, this is a big problem
of course, the bitcoin community knows the importance of this problem. As for how to solve this problem, the bitcoin community is divided on whether to expand the capacity of bitcoin blocks (as we have just said, it is too little capacity of bitcoin blocks that leads to slow transaction speed and congestion)
the controversy is mainly divided into two camps:
the original development team of bitcoin, led by core, believes that bitcoin is an electronic gold of value storage, which will destroy its core once it is expanded
however, the mining team led by Wu Jihan believes that bitcoin should be a kind of currency with rapid circulation in the future, and it needs to be expanded to solve the problem of transaction congestion. Because of the decentralized nature of the blockchain, no indivial or organization can decide how to "expand" the bitcoin system. Everyone has their own opinions, and their opinions are divided. No one is willing to give in. Therefore, everyone goes their own way. The bitcoin chain has split into BTC and BCH chains, and over time it has evolved into the so-called "bifurcation"
this is the origin of bifurcation
what happens after the second section bifurcates
for blockchain, bifurcation is the change of blockchain protocol, which is similar to upgrading the blockchain to make up for the shortcomings of the system. This is just like our current mobile phone software often prompts you to upgrade
however, we know that blockchain is decentralized. Unlike your mobile software, developers can upgrade when they say so. In the world of blockchain, any modification needs the consensus of all members. No one can decide when to change or how to change the underlying agreement of blockchain
therefore, when the original development team of bitcoin and the miner team have differences, the system will be divided into two parts, and two new systems based on the original blockchain will appear. Everyone has their own problems, and no one can intervene. In this way, the bitcoin system is divided into two chains: BTC and BCH, which are called "bifurcations", and BCH is called bifurcated currency (the bifurcated currency of bitcoin)
in fact, not only BCH, but also bitcoin has many bifurcated coins. Why is BCH the first thing to think of when it comes to bifurcated currencies? This is because BCH is a successful bifurcated currency. When its market value is the highest, it ranks the fourth in the list of cryptocurrencies, next only to bitcoin, Ethereum and EOS
section 3 hard fork and soft fork
let's make a metaphor: if bitcoin system is the trunk of a big tree, then BCH and other fork coins are the branches of the tree. However, bifurcation is not as simple as this metaphor. It can be divided into hard bifurcation and soft bifurcation
first, hard bifurcation: goodbye, never see again
the BCH we mentioned above belongs to hard bifurcation. Hard bifurcation means that nodes using old software can no longer verify blocks proced with new software nodes. If you want to verify, you can only upgrade. After upgrading, it is equivalent to changing the track and running on another new system. Just like BCH to BTC, BCH is a brand new track (a brand new chain), and the coin on this chain is BCH (bitcoin cash). Then, nodes using BCH system can no longer go to BTC network for transaction verification. Hard bifurcations, generally speaking, mean going their own way. There is no intersection any more< Second, soft bifurcation: getting better to meet again
soft bifurcation is opposite to hard bifurcation. Soft bifurcation means that nodes using the old version can verify the blocks proced by nodes using the new version, and nodes using the new version can also verify the blocks proced by nodes using the old version. The two versions are compatible
the way bitcoin upgraded its isolation witness in 2017 is soft bifurcation. In the whole process, it doesn't matter whether we use the old version or the new version, because they are compatible. The new version only solves some problems better. In essence, we are still running on the bitcoin chain, and there is no new coin
to sum up, the difference between soft fork and hard fork is whether nodes using old software can be compatible with nodes using new software. Compatibility is soft fork, while incompatibility is hard fork.
3. Cao Cao is a man with a strong sense of reality, but also rich in ideals and humanistic embrace. From a comprehensive perspective, he is the greatest contributor to Jian'an literature. Cao Cao's style of poetry and writing is the expression of his temperament in many aspects. His style of writing is flexible and witty, and his style of poetry is desolate, solemn and clear<
the famous sentence representing Cao Cao's tragic style is
1. Life is like death, like frost in the morning
2. Du Kang is the only one who can relieve his worries.
3. It's too abstruse to be complacent and wandering.
4. Zhuozha, the first teacher, is free to cultivate morality, and is proud of himself. The style of Cao Cao's poem is "generous and solemn", but the background of his poem "watching the sea" is that he defeated Yuan Shao and came back victoriously. His joy is expressed in words, expressing his ambition of unifying China. Besides, it seems inappropriate that this poem contains tragic meaning, so we should analyze the work with practice
Cao Zhi's poems are full of vigor and vitality, dripping solemn and stirring, and have a far-reaching impact on the poets of later generations
generosity & quot; As Cao Zhi's personal literary interest and the aesthetic trend of the whole Jian'an period, poetic style has become an aesthetic paradigm and artistic feature with far-reaching influence in the history of literature. This paper analyzes Cao Zhi's generous poetic style from the perspectives of performance features, social customs, era resonance, and causes, and discusses the formation of the generous poetic style between Han and Wei dynasties; Generosity & quot; There are great differences in the content between the early stage and the later stage. The early poems can be divided into two categories, one is to express his leisurely life, the other is to reflect his feeling of "living in chaos and growing up in the army". His later poems mainly express his indignation and sorrow under the suppression, and express his desire to make contributions to the world.
the famous sentence representing Cao Cao's tragic style is
1. Life is like death, like frost in the morning
2. Du Kang is the only one who can relieve his worries.
3. It's too abstruse to be complacent and wandering.
4. Zhuozha, the first teacher, is free to cultivate morality, and is proud of himself. The style of Cao Cao's poem is "generous and solemn", but the background of his poem "watching the sea" is that he defeated Yuan Shao and came back victoriously. His joy is expressed in words, expressing his ambition of unifying China. Besides, it seems inappropriate that this poem contains tragic meaning, so we should analyze the work with practice
Cao Zhi's poems are full of vigor and vitality, dripping solemn and stirring, and have a far-reaching impact on the poets of later generations
generosity & quot; As Cao Zhi's personal literary interest and the aesthetic trend of the whole Jian'an period, poetic style has become an aesthetic paradigm and artistic feature with far-reaching influence in the history of literature. This paper analyzes Cao Zhi's generous poetic style from the perspectives of performance features, social customs, era resonance, and causes, and discusses the formation of the generous poetic style between Han and Wei dynasties; Generosity & quot; There are great differences in the content between the early stage and the later stage. The early poems can be divided into two categories, one is to express his leisurely life, the other is to reflect his feeling of "living in chaos and growing up in the army". His later poems mainly express his indignation and sorrow under the suppression, and express his desire to make contributions to the world.
4. It is illegal. Without the license of network culture, it is illegal to deal in virtual currency. Beijing peak online answers for you.
5.
the following materials should be prepared for the additional items on the website:
1. The company change application report
2. The of the business license (plicate) of the enterprise legal person after the change
3
4. Copy of ID card and resume of the legal representative of the company
5
6. Articles of association7, business development report and other additional materials
6. The main business to apply for text on the Internet is business. Regardless of instry, those who have the following business must apply for text on the Internet
the business scope of e-Cert includes: using information network to operate music and entertainment procts, game procts, virtual currency distribution, virtual currency trading, exhibition and competition, cartoon works, drama and performance
of course, some enterprises do not apply only when they have business, or the business does not fully meet the approval requirements, but only provided by a third party, or used in enterprise cooperation, so the difficulty of processing is greatly increased
to apply for Internet culture, an enterprise needs to have a business scope related to Internet culture activities, a business website that meets the requirements of Internet document certificate, at least 8 computer related professionals, and be able to provide ID card, graation certificate, resume, etc. generally, the processing time is 20 working days after the official acceptance, and the time before acceptance should be based on the enterprise's situation, website's situation In terms of materials, there is no way to control this
if you have any other questions, please send me a private letter. I have applied for this certificate. I hope I can help you~
the business scope of e-Cert includes: using information network to operate music and entertainment procts, game procts, virtual currency distribution, virtual currency trading, exhibition and competition, cartoon works, drama and performance
of course, some enterprises do not apply only when they have business, or the business does not fully meet the approval requirements, but only provided by a third party, or used in enterprise cooperation, so the difficulty of processing is greatly increased
to apply for Internet culture, an enterprise needs to have a business scope related to Internet culture activities, a business website that meets the requirements of Internet document certificate, at least 8 computer related professionals, and be able to provide ID card, graation certificate, resume, etc. generally, the processing time is 20 working days after the official acceptance, and the time before acceptance should be based on the enterprise's situation, website's situation In terms of materials, there is no way to control this
if you have any other questions, please send me a private letter. I have applied for this certificate. I hope I can help you~
7. Li Bai, a great romantic poet in the Tang Dynasty, was called "Li Du" together with Du Fu. In order to distinguish from the other two poets, Li Shangyin and Du Mu, namely "little Li Du", Du Fu and Li Bai were also called "big Li Du"
Li Bai is deeply influenced by Huang Lao's thoughts of Liezhuang, and his poems are mostly written when he is drunk. His representative works are wanglushan waterfall, difficult journey, difficult Sichuan Road, going to wine, Ming Tang Fu, early departure from Baidi City, etc. Li Bai's Ci and Fu have been recorded in Song Dynasty (for example, in the volume of Xiang Shan Ye Lu by Wen Ying). In terms of its pioneering significance and artistic achievements, "Li Bai's Ci" enjoys a very high status.
Li Bai is deeply influenced by Huang Lao's thoughts of Liezhuang, and his poems are mostly written when he is drunk. His representative works are wanglushan waterfall, difficult journey, difficult Sichuan Road, going to wine, Ming Tang Fu, early departure from Baidi City, etc. Li Bai's Ci and Fu have been recorded in Song Dynasty (for example, in the volume of Xiang Shan Ye Lu by Wen Ying). In terms of its pioneering significance and artistic achievements, "Li Bai's Ci" enjoys a very high status.
8. How long can a computer last
some people will tell you three years, some people will tell you five years, and even some people will tell you ten years< br />
< In fact, if there is no accident, the computer can be used for more than 10 years and has a very long life, but at this time, you will face problems such as insufficient hardware performance and software compatibility (keyboard and mouse: I have something to say)
there are many reasons for the retirement of computers. Although many computers are eliminated because their performance can't keep up with the times, it's a pity that the actual use situation is more real. Your computer is more fragile than you think, and the damage of hardware itself is the real enemy of computers< br />
I blew up
there are many reasons for computer damage, but the damage caused by improper operation is relatively rare. Generally speaking, overclocking and mining will cause irreversible damage to the computer, which is also something that knowledgeable people will do. Of course, if the problem of watering is not new, remember that as long as the wet place is completely dry, it can be saved< br />
there is still hope
and the uneven quality of the hardware is the most common problem for most people. If the hardware is damaged e to the quality, the computer may die within an hour, or even involve other hardware in retirement
don't ask me why I know that some wonderful graphics cards even blow up the power motherboard. The previous "chicken eating" host has taught me directly< br />
that's it
do you know which hardware in the computer is the most rable, strong and hard to damage
CPU: Yes, it's under (mouse and keyboard:????)< br />
CPU
CPU damage is a rare problem. Most of them can be used for a long time, at least 10 years. Your fried E3 and E5 are such old toys
the main reason for ensuring the quality is that CPUs can not be copied. In addition to cheating users on performance, unscrupulous vendors can't an equivalent CPU on procts. Otherwise, Intel and AMD can't invest 10 billion US dollars in R & D for CPUs every year< br />
Shanzhai X58
therefore, Shanzhai CPUs like Shanzhai motherboard, Shanzhai graphics card, Shanzhai memory and miscellaneous power supply will not appear in the market
generally speaking, the iteration of hardware procts is very fast, and normal users will feel that the performance is insufficient in two or three years. If the computer really can last for more than 10 years, it can only be said that it can cultivate feelings. At this time, no matter how much it is, it's useless. The only advice I can give is to remember to clean up the st more, so that it can be used longer.
some people will tell you three years, some people will tell you five years, and even some people will tell you ten years< br />
< In fact, if there is no accident, the computer can be used for more than 10 years and has a very long life, but at this time, you will face problems such as insufficient hardware performance and software compatibility (keyboard and mouse: I have something to say)
there are many reasons for the retirement of computers. Although many computers are eliminated because their performance can't keep up with the times, it's a pity that the actual use situation is more real. Your computer is more fragile than you think, and the damage of hardware itself is the real enemy of computers< br />
I blew up
there are many reasons for computer damage, but the damage caused by improper operation is relatively rare. Generally speaking, overclocking and mining will cause irreversible damage to the computer, which is also something that knowledgeable people will do. Of course, if the problem of watering is not new, remember that as long as the wet place is completely dry, it can be saved< br />
there is still hope
and the uneven quality of the hardware is the most common problem for most people. If the hardware is damaged e to the quality, the computer may die within an hour, or even involve other hardware in retirement
don't ask me why I know that some wonderful graphics cards even blow up the power motherboard. The previous "chicken eating" host has taught me directly< br />
that's it
do you know which hardware in the computer is the most rable, strong and hard to damage
CPU: Yes, it's under (mouse and keyboard:????)< br />
CPU
CPU damage is a rare problem. Most of them can be used for a long time, at least 10 years. Your fried E3 and E5 are such old toys
the main reason for ensuring the quality is that CPUs can not be copied. In addition to cheating users on performance, unscrupulous vendors can't an equivalent CPU on procts. Otherwise, Intel and AMD can't invest 10 billion US dollars in R & D for CPUs every year< br />
Shanzhai X58
therefore, Shanzhai CPUs like Shanzhai motherboard, Shanzhai graphics card, Shanzhai memory and miscellaneous power supply will not appear in the market
generally speaking, the iteration of hardware procts is very fast, and normal users will feel that the performance is insufficient in two or three years. If the computer really can last for more than 10 years, it can only be said that it can cultivate feelings. At this time, no matter how much it is, it's useless. The only advice I can give is to remember to clean up the st more, so that it can be used longer.
9. It mainly depends on what you want to use it for. If you are playing games or watching videos on the Internet, you should not waste energy and money when you are sitting in front of the computer. If you are using it as a downloader, you have added memory and hard disk. Generally, you can still play it.
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