Development stage of Morgan Ethereum

1. Eth is a kind of digital token of Ethereum, which is regarded as "bitcoin version 2.0". It adopts the blockchain technology "Ethereum", which is different from bitcoin. It is an open-source public blockchain platform with intelligent contract results, and a resonance network composed of tens of thousands of computers around the world. Developers need to pay eth to support the application. Like other digital currencies, ether currency can be bought and sold on the trading platform

warm tips: the above explanations are for reference only, without any suggestions. There are risks in entering the market, so investment should be cautious. Before making any investment, you should make sure that you fully understand the nature of the investment and the risks involved in the proct. After a detailed understanding and careful evaluation of the proct, you can judge whether to participate in the transaction
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2. Of course, Ethereum has a current price of 972. As a relatively new development project using bitcoin technology, Ethereum is committed to implementing the global decentralized and non proprietary digital technology computer to execute the point-to-point contract. In short, Ethereum is a world computer that you can't shut down. The innovative combination of encryption architecture and Turing integrity can promote the emergence of a large number of new instries. On the contrary, the pressure of innovation in traditional instries is increasing, even facing the risk of elimination

bitcoin network is actually a set of distributed database, while Ethereum can be further seen as a distributed computer: the blockchain is the ROM of the computer, the contract is the program, and the miners of Ethereum are responsible for the calculation and play the role of CPU. This computer is not and can't be used for free, otherwise anyone can store all kinds of junk information and perform all kinds of trivial calculations in it. To use it, you need to pay at least the calculation fee and storage fee, as well as other expenses

the most famous enterprise Ethereum alliance was established in early 2017 by more than 20 top financial institutions and technology companies in the world, including JPMorgan Chase, Chicago Board of exchange group, Bank of New York Mellon, Thomson Reuters, Microsoft, Intel and Accenture. And Ethereum's cryptocurrency, Ethereum, has recently become a popular asset after bitcoin

3.

Ethereum is an open source public blockchain platform with smart contract function. It provides decentralized virtual machine (Ethereum virtual machine) to process point-to-point contract through its special cryptocurrency ether (also known as "Ethereum")

The token on the

blockchain is called ether, and the code is eth. It can be traded in many foreign exchange markets of cryptocurrency, and it is also the medium used to pay transaction fees and computing services on Ethereum

the concept of Ethereum was first proposed by vitalik buterin, a programmer, from 2013 to 2014, inspired by bitcoin, with the general meaning of "next generation cryptocurrency and decentralized application platform", and began to develop through ICO crowdfunding in 2014. As of February 2018, Ethernet is the second highest cryptocurrency in market value, second only to bitcoin

extended data:

Ethereum platform has no characteristics and value. Like programming languages, it's up to entrepreneurs and developers to decide what to use. However, it is clear that some application types benefit more from the functions of Ethereum than others. Ethereum is especially suitable for those applications that automatically interact directly between points or promote group coordination activities across networks

for example, coordinate the application of point-to-point market, or the automation of complex financial contracts. Bitcoin enables indivials to exchange money without the help of financial institutions, banks or governments. The impact of Ethereum may be more profound

in theory, any complex financial activities or transactions can be automatically and reliably carried out on Ethereum with coding. In addition to financial applications, any application scenario with high requirements for trust, security and persistence, such as asset registration, voting, management and Internet of things, will be affected by Ethereum platform on a large scale

4.

1. about the variability of blockchain

2. eth, if most people agree to modify the chain, that is, variability, then they can modify the blockchain records and contracts

3. etc, blockchain records and contracts can't be modified, that is, they can't be tampered with

4. here are the advantages and disadvantages of the two methods

   The advantage of

5. variability is that people can make timely changes to make the right decisions. Therefore, modifying the specification is more practical than finding loopholes

6. non modifiability means that no matter how smart people are at that time, it is impossible not to make mistakes. Therefore, when problems arise in this scheme, it is best to find and solve the loopholes through the existing legal framework

7. differences in development

8. eth, whether it is intentionally arranged or since its birth, the core decisions of blockchain are made by Ethereum foundation with the participation of the community and most of them are developed by it

9. etc, the decision-making of blockchain is mainly decided by the feedback of three loose, collaborative teams with community participation

10. in any case, anyone can put forward improvement suggestions for the two kinds of blockchains. This is the benefit of open source, and it is also very common. You will find that developers of the two chains communicate with each other through GitHub and reddit. I hope to improve the frequency of communication in order to achieve the common goal

11. about compatibility

12. at present, the two kinds of blockchains are compatible with each other. Contracts or applications written by eth can be applied on etc, and vice versa

13. eth, focusing on ewasm, is committed to providing a platform for more and more developers, while the issue of contract security is secondary, such as viper

14. etc focuses on making developers create more secure contracts, such as viper, iohk research, at the cost of consuming the number of potential developers

15. it's obvious that both chains can accept each other, regardless of whether their wishes are the same or not. My view is that the number of developers is not necessarily related to the quality of the proct

16. about the transaction speed

17. eth, the average is 25 seconds, which will be shortened after upgrading

18. etc, with an average time of 14 seconds, maintained at 10-14 seconds after upgrade, according to ecip-1010 and ecip-1036 protocols

19. about the block capacity

20. eth, with the daily trading volume of eth graally reaching 5 million, the block capacity is graally saturated. This situation is similar to the recent transaction cost of bitcoin. This problem can be solved by expanding the block capacity by increasing the default fuel limit

21. ETC­， At present, there is still a lot of room for block capacity. As more and more people accept etc, the block capacity will also increase, just like eth

22. about community

23. eth, mainly discuss on reddit

24. etc, mainly discuss on slack

25. about monetary policy

26. eth, the planned supply is growing steadily, resulting in an average inflation of 3% in eth blockchain in its life cycle

27. etc, before 2025, inflation will reach 3%, and then the total supply will reach 200 million etc, and then there will be deflation

    As for the regional distribution of trading volume, China accounts for 20%, South Korea 25% and the United States 25%
    In etc, China accounts for 50%, South Korea 25% and the United States 10%
    About securities, at present, investors do not have the option to trade securities. Recently, one of eth's ETFs, trading open-end index funds, was denied by the regulators

28. etc owns etc trading trust, which allows investors to own etc instead of the asset itself

5. 1. What is the ether classic<

etc (Ethereum Classic) is a bifurcated currency that Ethereum hard bifurcates after 1920000 blocks, and its function is very similar to Ethereum. Etc adheres to the concept of decentralization and supports the consensus mechanism of blockchain guarantee. Etc firmly believes that once the blockchain starts to run, its development direction will not be controlled by any central team, but will be determined by the consensus of the people participating in the whole network and the consensus of the computing power of the whole network

the Ethereum blockchain hard branching in July 2016 aims to transfer the Dao funds stolen by hackers to an account controlled by investors, and let the old transaction records be forgotten by history. Most Ethereum developers are involved in the reversal, as are exchanges, startups and other members of the ecosystem. A few days later, the project returned to normal. But not everyone wants to forget the old record. As a result, a small number of miners continued to use the original blockchain as a protest. They described the hard fork as a capital withdrawal for the abandoned project of the Dao. So Ethereum classic (etc) was born

2. Detailed parameters

Chinese Name: Ethereum classic English Name: Ethereum classic English abbreviation: etc

developer: Ethereum Classic team core algorithm: ethash consensus proof: POW

release date: 2016 / 7 / 20 block time: About 15-17 seconds / block

total currency: fixed at 210 million, up to 230 million, Every 5 million blocks decelerate by 20%, and the first proction rection is expected to be in December 2017

main features: independent cryptocurrency

6.

Bitcoin has opened the era of blockchain 1.0, which is characterized by providing a different way of thinking for value transfer, that is, value transfer no longer depends on centralized institutions such as banks. During this period, as more and more people were familiar with bitcoin, many people began to learn from the idea of bitcoin, so a large number of counterfeit coins appeared

the reason why these counterfeit coins are called "counterfeit coins" is that their source code is similar to that of bitcoin, and there is no substantive breakthrough. They also have the shortcomings of bitcoin, and there is no breakthrough improvement. However, people do not have the problem of bitcoin. Many people in the bitcoin community hope to solve these problems through a variety of technical means, so as to make the bitcoin system perfect

Among them, there is a Russian teenager named vitalik buterin, who is also eager to make up for the shortcomings of bitcoin system as soon as possible

first, you play games in a lively way, while others play games as gatekeepers

when he was 13 years old, he was a typical Internet addict, addicted to world of Warcraft. One day, the game company of world of Warcraft suddenly cancelled his favorite warlock "life siphon" skill. He was very angry and contacted the company many times to restore the skill. However, the game company did not agree

as a result, Butlin began to reflect that in Internet games, players, as participants, are actually very weak. The strong ones are game developers, who are the center of a game. Has the final say that the game player has no say what the developers want to do, and can only choose to accept or leave passively. p>

Butlin realized the disadvantages of centralization through "world of Warcraft", so he began to look for ways to break the centralization. Butlin realized bitcoin from his father, a programmer, and became so interested that he decided to give up the aura of a famous university and drop out of the University of Waterloo to travel around the world to exchange and learn with blockchain enthusiasts all over the world

at that time, bitcoin enthusiasts were going all out to add more functionality to bitcoin and build bitcoin 2.0. But Butlin believes that the establishment of a new programming language is bitcoin's top priority. So, at the age of 19, Butlin wrote a new white paper, which is the rudiment of Ethereum white paper. Butlin mentioned in the white paper

: he hopes to create a variety of applications based on the common programming language, such as social networking, trading, games... These ideas have been strongly echoed by the bitcoin community, and more and more people have joined in the design of Ethereum. Finally, this project was named "Ethereum" by Butlin, because "Ethereum" is a kind of material that has not been confirmed under scientific theory, implying Butlin's expectation for the project

in June 2015, Ethereum officially released

in the next two years, Ethereum's cryptocurrency "Ethereum" became the most popular digital asset after bitcoin. The price of Ethereum increased 85 times in 2017, and more than 20 global top financial institutions and technology companies, such as JPMorgan Chase, Chicago Board of exchange, Microsoft, Intel and Accenture, established the enterprise Ethereum alliance, Butlin has become a blockchain God "V God" from a young boy

2. The great potential of Ethereum to activate blockchain

the emergence of Ethereum has activated the great potential behind blockchain. Why do you say that

the breakthrough of Ethereum is that it not only upgrades the blockchain to an operating system, so that you can develop an application chain on this basis, but also allows you to publish your own tokens in a very simple way

different from bitcoin's preset trading system operation, Ethereum is a programmable blockchain:

Ethereum allows users to create their own operations that meet their needs and have different degrees of complexity. In this sense, Ethereum is a platform. This "platform" has built a relatively complete "system", which is a bit similar to Android and apple. Application developers can develop various applications on this system

this setting makes Ethereum break through the single "monetary function" of bitcoin, and expand the application scenarios of blockchain technology to all aspects. Now, for example, we can do a lot of things through mobile app: paying fees, ordering meals, taking a taxi, shopping and so on. Similarly, developers can develop DAPP (blockchain application) on Ethereum. In the future, you can use DAPP to replace app, paying fees, ordering meals, taking a taxi, shopping and so on. Ethereum gives us these beautiful visions

Thirdly, the consensus mechanism of Ethereum is different from that of bitcoin. As we mentioned earlier, bitcoin decides its bookkeeping rights through the consensus mechanism of pow. Although the security index of pow is high, the energy consumption and cost of mining are huge, and the transaction processing speed is still very slow. Therefore, Ethereum further enriched the technology of bitcoin and proposed a new mining mechanism, namely, proof of interest (POS)

The "proof of equity" proposed by Ethereum is similar to the shareholder mechanism. The more shares people have, the easier they are to obtain the bookkeeping right. It is a system of interest distribution according to the amount and time of holding money. The core logic of POS mechanism is: who holds the currency, who has the control of the network. It should be noted that in the POS mechanism, there is still computing power mining, which needs to solve a mathematical problem. However, the difficulty of the mathematical problem is related to the "age" of the coin holder. The longer the coin holder holds the coin, the easier the difficulty will be, and the greater the probability of digging the coin

Fourthly, the controversial ICO

Ethereum is an open source system, similar to the current Android and apple systems. Developers can develop various applications on it. Most of the ICO projects are based on Ethereum. If developers want to develop blockchain applications (DAPP) on Ethereum, they need to raise certain funds through ICO as operation and maintenance costs

The concept of ICO was very popular in 2017, which was once considered as the main reason for the bull market in 2017

What's the matter with ICO? ICO (initial coin offering) is a way to raise funds for digital currency / blockchain projects. Because the token has market value, it can be converted into legal currency. In this way, it can be used as the development cost of the project. And early participants can get the initial issue of digital currency in return

generally speaking, if a blockchain game company announces: we are going to issue money for private placement (ICO)! If you are particularly optimistic about this project, if you want to participate, you need to buy a certain number of Ethereum and call the wallet address of the blockchain game project party, which is equivalent to that you have participated in the crowdfunding (ICO) of the blockchain game project party. When the currency of this blockchain game company can be traded on the exchange, then they will pay you back according to certain rules

it seems that ICO in blockchain field is similar to IPO in stock field, isn't it? you 're right! In fact, ICO in the blockchain field is very similar to IPO in the stock field. Let's take a look at their general explanation:

IPO refers to an enterprise or company (limited company) selling its shares to the public for the first time

ICO refers to an enterprise or company (mostly blockchain start-ups) selling its token to the public for the first time

however, normally speaking, it is very difficult for an enterprise or company to go through the IPO process. It is very difficult to go through "BP seed round Angel round a round B round C round D pre IPO IPO IPO" without five to eight years. However, ICO in the field of blockchain can only be realized in three to eight months by "white paper - cornerstone investment - Private Placement -

- ICO - Stock Exchange"

This is also the reason why ICO is controversial. At present, many countries define ICO as an illegal act. It is not unreasonable to ban ICO, because at present, the state has no relevant supervision on this aspect, so it is very easy for the project party to illegally raise funds and circle money, which not only causes great losses to investors, but also disrupts the normal financial order

Fifthly, the most important feature of Ethereum is the introction of "smart contract". What does smart contract mean? Smart contract is to define a set of trading rules in the form of code. In our daily life, we usually sign paper contracts, and the implementation of paper contracts needs centralized institutions, that is, the court to supervise. The "smart contract" proposed by Ethereum is to realize decentralized automatic execution through program

the account called "smart contract account" will only be executed according to the code. This technology has a wide range of applications, including insurance, equity, trust and so on. It can be said that this technology can be applied to all activities that need trust

Sixth, the significance of Ethereum: it represents the blockchain 2.0 era. After the glorious period of 2017, now, in the face of bear market, some ICO projects are worried about being tired by the bear market and cash out one after another, leading to a sharp drop in the price of Ethereum. V God, the founder of Ethereum, is also deeply involved in all kinds of rumors. There are often rumors that he is going to quit Ethereum and he is running away

However, Ethereum is indeed a leap forward in blockchain technology, which represents the era of blockchain

2.0. If bitcoin represents the era of blockchain 1.0, it provides new ideas and new methods for value transfer; Then, the blockchain 2.0 era represented by Ethereum makes the commercial application of blockchain possible

7.

In fact, Ethernet is an electronic virtual currency, which is regarded as "bitcoin version 2.0". The blockchain technology "Ethereum", which is different from bitcoin, is the real reason to win Putin's favor

Ethereum is an open-source public blockchain platform with smart contract function. It mainly provides decentralized virtual machine to process point-to-point contracts through its special encrypted currency Ethereum, which is fast and unlimited in quantity. In other words, it is a monetary payment system, but their functions and purposes are different

if bitcoin is considered to be a shared global book that securely records all bitcoin bills. Then Ethereum is to maintain a shared computing platform, which can flexibly and safely run any program users want. Because of this, many countries and enterprises are developing how to use Ethereum technology in the real world

the latest price of eth on btctrade platform of bitcoin trading network is ￥ 2430! The increase is amazing

blockchain Ethereum is widely used

at present, the application of Ethereum technology in Russia is still relatively positive. For example, veb, the state-owned Development Bank of Russia, began to apply Ethereum technology to some administrative functions last week, and Russian steel giants are also testing the application of Ethereum in the safe transfer of international letters of credit. Therefore, Putin believes that this virtual currency can help Russia diversify its economy and support the paving of the way by blockchain technology and the establishment of new businesses

not only Russia, JPMorgan Chase, Microsoft, Intel and others are optimistic about Ethereum technology. At the same time, Ethereum has also been paid close attention by some financial institutions, banking consortia, Samsung, IBM and other large companies, resulting in the simplification and automation of financial transactions, merchant loyalty index tracking, customer satisfaction index tracking, customer satisfaction index tracking, etc Blockchain applications such as gift cards are designed to achieve decentralization of electronic transactions. That's why the etheric currency is rising

the future of ether coin

of course, different from Ethernet, there are 670 bitcoin ATMs in the world, and thousands of outlets support bitcoin payment, but Ethernet has not yet emerged in the field of electronic payment. Mainly used to support the Ethereum network to run the program. Therefore, whether bitcoin will be recognized in the future is still unknown, but what Russian President Vladimir Putin has done may not be a signal

we have said before: it is still difficult to define bitcoin as currency, but it must be an asset, and I think Ethereum must be an asset. Although the application of blockchain technology is not yet mature, in a sense, it will be used sooner or later. After all, in the future era of big data, blockchain technology can better protect the efficiency and privacy of our information

this is why digital currency Ethereum is so popular

hope to adopt

8. Ethereum has established a programmable and Turing complete blockchain. On this blockchain, you can realize the proction of all kinds of digital assets through a simple program, and you can also accurately control the status of the blockchain assets circulating on Ethereum by writing a program, such as whether the asset is to be paid or locked or has a quota, whether the account is a treasure list or a white list Ethereum and other digital assets, etc. At the same time, Ethereum is a programmable, flexible and complete blockchain network foundation. On this basis, we can realize more functional procts of non regional fast chain assets. For example, I use Ethereum to set up smart contracts, which can be applied in personal daily economic life and enterprise economic activities. Ethereum is a new and open blockchain platform based on the concept of blockchain and blockchain assets. It allows anyone to build and run decentralized applications on the platform by using blockchain technology. In short, Ethereum technology is blockchain technology plus smart contract.

9. It can be done, but I don't fully understand the principle< The steps of panel data PCA in Eviews are as follows:
① create a panel workfile (pay attention to the start and end years, and fill in the number of cities corresponding to you in cross sections, such as 9)
② quike → empty group → import data (you need to manually enter the variable name in the first line, Select the first row and then click ↑)
③ view → principle components → click OK
to do it
good luck~

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