Feishen, founder of Ethereum

1. Vitalik buterin, the founder of Ethereum and the younger brother of the post-90s generation, is known as "V God" in the Jianghu
bitcoin is a digital currency designed by Nakamoto in 2009. The identity of its founder "Nakamoto" has always been a mystery. Rumors about "father of bitcoin" involve from the US National Security Agency to financial experts, and also give bitcoin a mysterious aura. Matcha exchange can find out more about Ethereum bitcoin

2.

There is an essential difference between Ethereum and bitcoin. What is the difference? Bitcoin defines a set of currency system, while Ethereum focuses on building a main chain (which can be understood as a road) to allow a large number of blockchain applications to run on this road

from this point of view, Ethereum's application scenarios are more extensive, which is why we say that Ethereum marks a simple monetary system in the era of blockchain

1.0, and a transformation to other instries and application scenarios in the era of blockchain 2.0

however, there is no perfect thing in the world. Although Ethereum has expanded the application scope of blockchain in all walks of life and improved the speed of transaction processing, it also has some disputes and doubts

first, the solution to the lack of scalability of Ethereum: slicing technology and lightning network

the bottom design of Ethereum, the biggest problem is that Ethereum has only one chain and no side chain, which means that all programs have to run on this chain equally, consuming resources and causing system congestion. Just like last year's very popular Ethereum game "encryption cat", when this game was very popular, it once caused Ethereum network paralysis

to improve the processing capacity, Ethereum proposes two ways: shard and lightning network. Let's introce these two technologies respectively

(1) fragmentation technology

vitalik buterin, founder of Ethereum, believes that the reason why mainstream blockchain networks such as bitcoin process transactions very slowly is that every miner has to process every transaction in the whole network, which is actually very inefficient. The idea of fragmentation technology is: a transaction does not need to be processed by all nodes in the whole network, as long as some nodes (miners) in the network are allowed to process it. Therefore, Ethereum network is divided into many pieces. At the same time, each piece can handle different transactions. In this way, the network performance will be greatly improved

however, the slicing technology is also controversial. As we all know, the important idea of blockchain technology is decentralization. Only when the whole network witnesses (processes) the same transaction can it have the highest authority. The Ethereum slicing technology is similar to the group witness, not all nodes witness together. In this way, it will lose the absolute "decentralization" attribute, and can only achieve the purpose of high performance by sacrificing certain characteristics of decentralization

(2) lightning network

lightning network uses the way of transaction under the chain. What does that mean? It means: when the participants of lightning network transfer money to each other, they do not need to confirm the transaction through the main chain of Ethereum, but create a payment channel between the participants and complete it under the chain

however, lightning network is not separated from the main chain. Before establishing a payment channel, you need to use the assets on the main chain as collateral to generate a balance proof, which indicates that you can transfer the corresponding balance. In the case that both parties of the transaction hold the balance certificate, both parties can make unlimited number of transfers under the chain through the payment channel

only when the off chain transaction is completed and the assets need to be transferred back to the chain, the balance change information of the main chain account will be registered on the Ethereum main chain, and no matter how many transactions occur ring this period, there will be no record on the main chain

another real benefit of lightning network is that it can save the cost of miners for you. At present, when we trade on the main chain of Ethereum, we need to consume gas and pay for miners. Once we move the transaction to the lower chain, we can save this part of the cost

Of course, lightning network is not perfect. When using the lightning network, the assets on the main chain should be used as collateral; And this part of assets as collateral can not be used before the user completes the transaction under the chain. This also determines that lightning trading is only suitable for small transactions

the above is the problem of insufficient scalability of Ethereum, as well as the two main solutions: fragmentation technology and lightning network

Second, there are loopholes in Ethereum's smart contract and the infamous Dao event

Ethereum's smart contract is very powerful, but there are loopholes in any code. The biggest controversy of Ethereum's smart contract lies in the so-called loopholes, that is, security issues. According to relevant research, 34200 (about 3%) of the nearly 1 million smart contracts based on Ethereum contain security vulnerabilities, which will allow hackers to steal eth, freeze assets or delete contracts, such as the infamous Dao incident

(1) what does Dao mean

before introcing the Dao event, let's first introce what Dao is. Dao is the abbreviation of decentralized

autonomous organization, which can be understood as decentralized autonomous organization. From the perspective of Ethereum, Dao is a kind of contract or a combination of contracts on the blockchain, which is used to replace the government's review and complex intermediate proceres, so as to achieve an efficient and decentralized trust system. Therefore, Dao is not a specific organization, that is to say, there can be many Dao, all kinds of Dao

(2) the infamous Dao event

however, when we talk about Dao now, we basically refer to the Dao event, that is, the infamous hacker attack event we just mentioned. As we know, the English word "the" refers to "the Dao event". The Dao event

refers to "the Dao event", because we just said that Dao is not a specific organization, there can be many Dao, all kinds of Dao

in 2016, slock.it, a German company focusing on "smart locks", launched the Dao project on Ethereum in order to realize decentralized physical exchange (such as apartments and ships). Since April 30, 2016, the financing window has been open for 28 days

unexpectedly, this Dao project is very popular. It raised more than US $100 million in just half a month. By the end of the whole financing period, it raised a total of US $150 million. Therefore, it has become the largest crowdfunding project in history. However, it didn't last long. In June, hackers took advantage of the loopholes in the smart contract to successfully transfer more than 3.6 million Ethernet coins and put them into a Dao sub organization, which has the same structure as the Dao. At that time, the price of Ethernet currency fell directly from more than $20 to less than $13

this event shows that there are loopholes in smart contracts, and once the loopholes are exploited by hackers, the consequences will be very serious. This is why many people criticize Ethereum and say that its smart contract is not smart

to solve this problem, many foreign companies begin to provide code audit services in order to solve the vulnerability problem of smart contract. From a technical point of view, some teams are currently testing smart contracts. Most of these teams are led by professors from Harvard, Stanford and Yale, and some of them have obtained investment from leading institutions

in addition to the problems of insufficient expansibility and loopholes in smart contracts, the controversy over Ethereum lies in the POS consensus mechanism it pursues, that is, the proof of equity mechanism. Under the proof of equity mechanism, if anyone holds more money and holds it for a longer time, he will get more "rights" (interests) and have the opportunity to get bookkeeping power, Bookkeeping can also be rewarded. In this way, it is easy to create the oligarchic advantage of "the stronger the stronger"

Another problem is the chaos of ICO. ICO is a common way to raise funds for blockchain projects, which we can understand as pre-sale. The outbreak of ICO projects on Ethereum has caused illegal activities such as fund allocation and money fraud under the banner of ICO, which has caused security risks to social and financial stability

3. After the hard bifurcation of etc, ETH came into being. The relationship between the three currencies is just like that between yen, won and US dollar

4. There was a theft incident in Ethereum before, which was very shocking. The founder of Ethereum claimed that these lost currencies could be recovered by changing the operation mode, so Ethereum made a hard fork. However, not everyone supported this fork. Therefore, some people still insisted on the original algorithm, so, The one who adheres to the original operation chain is etc, and the main chain after bifurcation is now Ethereum. The founder of EOS is DM. Inspirational has become a blockchain operating system. The relationship between EOS and Ethereum should be based on Ethereum. The main network will be launched in June this year, and its value should be greatly increased. At present, these three currencies are traded on multiple platforms, including btctrade international station, Huo coin, OK, etc., and currency security, coineggg, etc.

5.

V God refers to V God in happy male voice

is elected by the majority of netizens, who hold the power to blackmail other judges

V God should not only have a high popularity, but also directly veto the judgment of one of the judges, directly affect the competition results, and be the VIP of the judges

{rrrrrrr}

extended materials:

the characters represented by V God:

I. in myth,

V God is a Xuanwu people in Beiping. It was born in the autumn of 1987. When he was young, he was gifted. He was often appointed a date by a university in Beijing. He was famous for his expeditions, which can be said to be noisy. Waiting for V God crown, because from the tribe is a graceful station, elegant manner, closed on shy flowers, sunken fish wild goose beauty you

Second, in the game DOTA,

V God has played an immeasurable role in the process of VP winning mym7. God V's gank power is unmatched. Even if God V starts badly. In recent games, he led the team through the suffocating gank to destroy opponents. God V can be competent for any hero, such as the moon arrow, the fearless bounty hunter, and even the witch doctor. There is no doubt that vigoss will continue to rule the DOTA community< Third, in the water king, vshen is a member of the 5th phase of the 3rd unit of arma3 armed assault of saga, a famous domestic game team. Now he has become a regular member and one of the soul figures of the unit

Third, in the economy, vitalik buterin is the founder of Ethereum. Vitalik buterin, inspired by bitcoin, put forward the idea of "next generation cryptocurrency and decentralized application platform", which began to develop through ICO crowdfunding in 2014

at the end of 2013, vitalik buterin, founder of Ethereum, released the first edition white paper of Ethereum and launched the project. From July 24, 2014, Ethereum has carried out a 42 day pre-sale of Ethereum coins

6.

If you forget the stock capital password and transaction password, there is no other way, you can only bring your ID card, shareholder account card and other relevant materials to the securities counter. For specific questions, you can consult the customer manager

stock account refers to the account opened by investors in securities companies for stock trading

opening a stock account is a prerequisite for investors to enter the stock market

precautions for opening stock account

(1) required certificate: ID card. If a legal person's stock account is opened, the original (or ) of the business license and the power of attorney of the legal person shall be issued at the same time

(2) fees include: application form fee and account opening fee

(3) operation process: investors need to fill in the application form and pay the handling fee; Hold relevant certificates, application forms and receipts of account opening fees to the account opening counter and hand them to the counter undertaker; After the undertaker checks the above materials, the applicant takes back the relevant certificates and receipts and gets the stock account card

extended information:

stock account loss reporting and re handling

(1) Shenzhen securities account loss reporting and re handling

1. If an investor loses his securities account card, he / she can report the loss and re handle the new number of securities account at Shenzhen Branch of China Securities Regulatory Commission or its designated securities business office with his / her ID card

2. If the investor loses the securities account and ID card at the same time, he / she should report the loss and go through the replacement proceres with the ID card loss certificate, account book and its issued by the public security organ

3. If the investor entrusts others to report the loss, the agent should present the legal notarization document at the same time

(two) the loss of the securities account in the Shanghai Stock Exchange and the replacement of the

securities business department will apply for the loss of the securities account according to the following proceres:

1, carefully examine the identity card of the investor (for example, if the identity card is lost at the same time, it must provide the certificate of loss of the body certificate issued by the public security police station under the registered residence, and paste the official seal of my recent certificate); p>

2. All securities in the securities account will be frozen

3. After the investor provides a new securities account with the same securities account registration information opened by the agency of Shanghai Securities Central Registration and Clearing Company, the corresponding securities account transfer proceres shall be handled for the investor

(4) after the securities business department has accepted the transfer of investors' accounts and registered their securities subsidiary accounts, it will send the change information to Shanghai Securities Central Registration and Clearing Company for change registration before the closing of the market on that day

5. The securities business department can handle the application for investors to cancel the loss report, but the securities account that has gone through the proceres of securities transfer can not cancel the loss report

6. When the securities business department accepts the loss report of investors' securities accounts, the Shanghai Securities Central Registration and Clearing Company will change all the securities rights and interests in the loss report account to the account of the transferor at one time

7. Mutual promotion of cryptocurrency development

8.

Recently, a & lt; The 27 year old founder of ether coin made a profit of $1.1 billion; The news of, caused the hot discussion of broad netizens, make boiling on the net. We know that with the development of society, digital currency has emerged in all currencies. The largest digital currency is bitcoin. Bitcoin has risen from less than one cent at the beginning to more than 300000 yuan now, with a huge increase. After bitcoin, it is the second largest digital currency, ether coin, which was launched in 2015 and is now up a lot. So who is the founder? What does he do

The founder of vitalik buterin is a 27 year old programmer who created ethercoin in 2013 and launched ethercoin in 2015. He is a Russian Canadian{ RRRRR}

the above are my views on this issue. They are purely personal views and are for reference only. If you have any different views, you can leave a message in the comment area for discussion

9. Ethereum, the world's second largest cryptocurrency, once broke through $3400

Ethereum, the world's second largest cryptocurrency, broke through $3000 for the first time on Monday, and rose further on Tuesday, once breaking through $3400, reaching a new high. Its market value once reached US $395.2 billion, ranking 18th in the global asset market value, surpassing MasterCard and NVIDIA and approaching Wal Mart. Traders attribute the rise of bitcoin to the rise of bitcoin at the end of 2020, and the upgrade of blockchain Ethernet makes bitcoin more useful. So far this year, Ethereum has grown by about 365%

bitcoin network is actually a distributed database, and Ethernet goes a step further. It can be seen as a distributed computer: the blockchain is the ROM of the computer, the contract is the program, and the miner of Ethernet is responsible for the calculation and plays the role of CPU. Of course, this computer is not and can not be used for free, otherwise anyone can store all kinds of junk information and carry out all kinds of trivial calculations

OK, that's what we're going to share in this issue