Ethernet blockchain
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 theblockchain 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
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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
how many stages is the blockchain divided into&# 8194;
there are 1.0, 2.0 and 3.0 blockchains, and the digital currency dominated by bitcoin is blockchain 1.0; The smart contract platform centered on Ethernet is blockchain 2.0; The application scenario and platform of high-performance blockchain is blockchain 3.0. The simple conclusion is that 1.0 is mining and currency speculation; 2.0 is ICO and currency; 3.0 is the implementation of the project. The real landing projects are still far away from us. Most projects take stage 2.0 as the entry point of instry solutions. The combination of blockchain and instry enables blockchain to be applied in a certain instry&# 8194;
how to be a qualified blockchain project&# 8194; potential blockchain projects have different evaluation standards and different periods. The main reason for the outbreak of digital currency in 2017 is the promotion of ICO and Ethernet smart contract. In the past, projects that could meet these two conditions were considered good. Now, the measurement standard of projects is: & (1) There are application scenarios. The project itself has team, goal and real scene application. Because some teams or enterprises are not suitable for blockchain applications, it is a rather crude way to establish a connection between them&# 8194;&# 8194;&# 8194;&# 8194;&# 8194; (2) the multi parties involved in the blockchain can generate transactions (3) blockchain has a large number of communities and users. In conclusion, good blockchain projects can be applied refer to the case of Henan keoo Information Technology Co., Ltd
what is Ethereum
Ethereum is often compared with bitcoin, but the situation is different. Bitcoin is a kind of cryptocurrency and distributed payment network, which allows bitcoin to be transferred between users
related: what is bitcoin? How does it work
Ethereum has a bigger goal. As Ethereum says, "Ethereum is a distributed platform running smart contracts.". These smart contracts run on "Ethereum virtual machine", a distributed computing network composed of all devices running Ethernet nodes
"distributed platform" means that anyone can set up and run an Ethereum node just as anyone can run a bitcoin node. Anyone who wants to run "smart contracts" on nodes must pay the operators of these nodes in ether, which is a cryptocurrency related to Ethereum. Therefore, the person running the Ethernet node provides computing power and gets paid in the Ethernet, which is similar to the way that the person running the bitcoin node provides hash power and pays in bitcoin
in other words, although bitcoin is only a blockchain and payment network, Ethereum is a distributed computing network, and its blockchain can be used for many other things. Details are provided in the Ethereum white paper
what is ether
Ethernet is a digital token (or cryptocurrency) related to Ethereum blockchain. In other words, Ethereum is the token and Ethereum is the platform. But now people often use these terms alternately. For example, coinbase allows you to buy Ethereum, which stands for Ethereum
this is technically "altcoin", which actually means a non bitcoin cryptocurrency. Like bitcoin, ether is supported by distributed blockchain - in this case, Ethereum blockchain
developers who want to create applications or Ethereum smart contracts on Ethereum blockchain need Ethernet token to pay for nodes to host it, while users of Ethereum based applications may need Ethernet to pay for services in these applications. People can also sell services outside the Ethereum network and accept Ethernet payments, or they can sell Ethernet tokens in cash - just like bitcoin
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Ethereum mining
Berlin hard fork will mark the end of the metropolitan era. This is a key stage in Ethereum's history, which is divided into two stages (Byzantine and Constantinople), including several branches, including Atlantis, Istanbul, and finally reached its peak in Berlin
in the 19th century, scientists graally found that light is a kind of wave, and most of the waves in life need propagation media (for example, the transmission of sound waves needs air, and the transmission of water waves needs water, etc.). Influenced by traditional mechanics, they assumed that there was a kind of matter called ether everywhere in the universe, and it was this kind of matter that played a role of medium in the transmission of light
according to Maxwell's equations, the propagation of electromagnetic wave needs an "absolute" reference frame. Only in this reference frame can the speed of light have the value C = &# 92 predicted by Maxwell's equations; frac{1}{\ sqrt{\ varepsilon_ 0\ mu_ 0}} Among them, 92; varepsilon_ 0 is the vacuum dielectric constant, μ 0 is the vacuum permeability. This "absolute frame of reference" is ether. The speed of light measured in other reference frames should be the vector sum of the speed of light in this "absolute" reference frame and the speed of this "absolute" reference frame relative to the observer
according to the conjecture at that time, ether filled the whole universe, and electromagnetic waves could propagate in it. When the earth revolves around the sun, it has a velocity V relative to the ether. Therefore, if the speed of light is measured on the earth, the values measured in different directions should be different, with the maximum of C + V and the minimum of C-V (at this time, it is assumed that the ether is stationary relative to the solar reference system). But even if the ether is not stationary relative to the solar reference system, the values measured in different directions should be different. However, from 1881 to 1884, Albert Michelson and Edward Morley concted the famous Michelson Morley experiment to measure the relative speed of the earth and ether, and measured the speed of light in different directions. However, the experimental results show that there is no such speed difference. In fact, this proves the principle of invariance of light speed, that is, the speed of light in real space has the same value in any reference frame, which has nothing to do with the relative speed of reference frame. In fact, ether does not exist. Later, many experiments supported the above conclusion
the theory of ether was once deeply rooted in people's minds for a period of time, and profoundly influenced the thinking of physicists. Lorentz, a famous physicist, has deced the Lorentz transformation formula which accords with the condition of electromagnetism covariance, but he can't abandon the viewpoint of ether. Einstein boldly abandoned the theory of ether and thought that the constant speed of light was the basic principle. Based on this, he established the special theory of relativity. Although later facts proved that there was no ether, the ether hypothesis still left traces in our lives, such as Ethernet.