Which is safe between Ethereum and Wright

1.

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

2.

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

3.

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

4.

1、 According to the information "LCC" provided by you, we find the following items:

1. Litecoin cash / LCC

Introction: litecoin cash is a split currency with a block height of 1338540. It is committed to bringing a reliable currency to the world and practicing the original lightcoin as "bitcoin, We also provide reliable transaction confirmation with low handling charges between businesses and users. The successful example of bitcoin cash will also light up the future of lightcoin cash

online exchanges: 6

issuing time: February 22, 2018

2. Digital blockchain / LCC (digital chain)

Introction: Digital blockchain (digital chain / LCC) is committed to developing the third professional blockchain ecosystem besides bitcoin and Ethereum, Digital chain realizes the point-to-point value of traditional digital assets, such as bitcoin, Ethereum and other encrypted blockchain technologies, such as data assets, domain names, network accounts and mobile phone numbers, through value transfer protocol

the goal of digital chain is to become a dedicated public chain platform for global digital assets, explore the combination of digital assets and blockchain, and improve the liquidity, security and value of digital assets

online exchanges: 0

issuing time: November 18, 2017

2. To judge whether a project is safe and deceptive, we can start from the following aspects:

1, white paper

to see a project, the first thing to see is the white paper of the project, which is very important. Usually, the white paper of the project will show the instry demand background, technical background, team information, instry pain points solved, investor relations and the future development plan of the project, etc. When you read the white paper carefully, you will have a clear understanding of the projects you invest in

2, team, consultant and platform boss

we know that investment projects in the investment field, in many cases, will look at people, and investment projects are mostly the founders and teams of investment projects. The blockchain technology talent market is very scarce. Under normal circumstances, there should be senior technical experts in the excellent team. Users must know the relevant information through multiple channels when looking at the project team members. If the project has a star or instry tycoon platform, you should be careful to avoid exaggeration or false publicity of the project

3, whether the project application solves the problem

after having a general understanding of the project, we need to combine with the real background of the instry where the project is located to deeply analyze whether the project has solved some problems of the instry, and whether the application scenario of the project is real and feasible. If the viewpoint of the project is far from the needs and problems of the instry, you should be careful about this project

4. Project code submission Review

users who know a little bit about technology can see the degree of team code submission. If they come out to raise funds without even code, the risk of the project is great

5, the degree of technological innovation of the project

on the level of technological innovation, we need to see whether the project gives full play to the technical advantages of the blockchain, whether there is innovation and whether it is open source. Generally, open source projects will be uploaded to githob. As for the common problems at the bottom of the blockchain, how the project side solves and plans them

6. Pay attention to the fund-raising situation of the project

we can have an in-depth understanding from the following aspects: whether the total amount of fund-raising of the project is reasonable, whether there is excessive additional issuance, whether the token allocation of the project is reasonable, whether there is a record on the official website, whether the team members make fraud, etc

7. Online trading platform

we can also make lateral judgment through the online trading platform of the project. In general, the well-known trading platform has a strong review on the project. If the project is launched on a small trading platform, or even a trading platform that has never heard of, it needs to be treated with caution

8. Refer to the opinions of the third-party project rating agencies

at present, there are not a few third-party project rating agencies in the market. We can refer to the suggestions and opinions of the third-party project rating agencies on the project as a channel for us to understand the project. It is possible that the project rating agencies have different scoring systems for projects, but their final results will not have a big gap, which can be referred by many parties

5. If bitcoin and Ethernet have different rules, do they have different ways of trading and investment
for a long time, Ethernet has been known as a strong competitor of bitcoin. It wasn't until Andreas antonopoulos claimed that Ethernet was no longer a competitor of bitcoin, which triggered a heated discussion on social networks
people begin to compare the two and discuss the differences in investment and transaction between the two digital currencies< According to Chris burniske, analyst and blockchain proct director of ark investment management company, bitcoin is more used for hedging, while Ethereum, which relies on Ethereum to execute smart contracts, is more seen as a trading tool
bitcoin and Ethereum systems are built on the basis of blockchain, in which transactions are recorded publicly, making currency and asset transactions more convenient and preferential, eliminating the cumbersome middleman
in December 2015, the price of Ethernet currency was less than US $1, but now it has risen to US $15, nearly 15 times in just six months. This achievement is attributed to Ethereum, whose financial contracts are completely executed by software, which has attracted a large number of users to invest
with the previous example of Ethereum, the success of Dao (decentralized autonomous organization) is no surprise. The crowdfunding platform supported by Ethereum raised nearly $150 million from more than 10000 anonymous users. Each participant is given the right to vote, they can allocate funds, choose projects, once the investment project is successful, they can also get a certain degree of dividend reward< There are 670 bitcoin ATMs in the world, and thousands of outlets support bitcoin payment. Unlike bitcoin, Ethereum has not yet emerged in the field of electronic payment. At present, the main purpose of Ethereum is to support Ethereum network (such as Dao) to run programs
David ccini, executive director of the strength in numbers foundation, said:
users' expectations of Ethernet are different from those of bitcoin. Both cryptocurrencies can be used for speculation, but the original function of Ethernet currency is to support the operation of applications. Therefore, users need enough Ethernet coins to run their own app. This is also the problem faced by Dao - unless Dao can continuously generate new Ethernet coins, the payment platform will be in danger of outage.

6. We have recently launched a batch of Yinhe mining machines. The stability is good. We mainly focus on quality assurance. The whole machine is guaranteed for one year. Can you try?

7. In fact, if it's a miner, most of its functions are the same. It's just for mining, just for speed and stability. Under the same conditions, no one can match us

8. According to my inference, this is a British dollar, that is to say, the face value of pound sterling is five. According to 10000 gold coins of pound sterling, it will be linked to RMB 10. His head is Queen Elizabeth II, followed by London, the most famous city in Britain. Big Ben is very famous. This B can sell for at least 10000 yuan. This is Elizabeth II's pound in the 1980s

9. Ethereum, known as bitcoin 2.0, has a better future.

10.

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