Ethereum founder's girlfriend

1.

Buterin, the founder of Ethereum, is a Russian

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. In early 2016, Ethereum's technology was recognized by the market, and its price began to soar, attracting a large number of people other than developers to enter Ethereum's world. Two of China's three major bitcoin exchanges, huocoin.com and okcoin.com, both officially launched Ethereum on May 31, 2017

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extended materials:

in 2011, butrin began to realize bitcoin under the influence of his father when he was 17 years old in high school. Butrin showed a strong interest in this new thing. In order to better understand this fully distributed currency, butrin began to read bitcoin forum and technical materials. He wrote bitcoin blog articles to earn bitcoin, although his hourly salary was only $2 an hour

when he made 20 BTCs, he took 8.5 to buy a shirt. But he realized at that time that if thousands of people from all over the world join the bitcoin community, an independent financial system can be created, and the application of blockchain is not limited to cryptocurrency, but applicable to all walks of life. Since then, Butlin has been working in this direction

in late 2011, butrin graally became famous in the community. A man from Romania invited him to co-founder bitcoin magazine and serve as the chief writer

2. 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

3. 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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4.

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

5. 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.

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.

As we all know, blockchain is the proct of recent years, but the market for blockchain related courses can be said to be multifarious, fengmaolingjiao, each has its own merits, here, do a statistics, study, discuss and exchange together

mining mean? What did the miners do

10. What is the application of blockchain? What changes will blockchain bring

11. Blockchain will become the basic internet protocol, similar to TCP / IP and HTTP

12. What is Ethereum? Why is it the representative of blockchain 2.0? He is the founder of Ethereum and the real big man in the blockchain instry

14. What is a smart contract

15. What is Ethereum smart contract

V God said that the token system of Ethereum

17. Machines need the certificate more than people

18. What is the standard of erc20 certificate

19. The Dao crowdfunding event and Ethereum bifurcation

20. How to design Tongzheng? How to express assets

21. Classification of token (list of categories)

22. Technology and components of Ethereum smart contract

23. Erc721 standard and encryption cat

24. Ethereum account (external account and contract account)

25. Four features of blockchain

26. What is blockchain 3.0 like

What is EOS? What is the difference between EOS, bitcoin and Ethereum

The consensus mechanism and block generation of EOS

29. Daniel laremo (BM): the main developer of EOS

30. A map to understand what EOS is

31. The "Impossible Triangle" of blockchain

32. What is the application of blockchain (decentralized application)

33. How to recover the stolen EOS key

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