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Looking to purchase some cryptocurrency, and wondering - what is Ethereum? Let's talk!

Welcome, friends! You’re probably here because you woke up this morning and thought to yourself, “what is Ethereum, and how does Ethereum work?”.

You weren’t sure, so you asked your neighbor and they didn’t know, either! It’s okay, though — this guide is going to tell you everything you need to know about one of the world’s most exciting cryptocurrency - Ethereum.

We'll discuss everything from what Ethereum is, all the way how to actually purchase it, and where to store your newly-acquired Ether coins. On that note, I can tell you in advance, though - the best places to purchase Ether coins are going to include Binance and Kucoin. Storage-wise, cold wallets are your best bet - namely, the Ledger Nano S Plus and Trezor Model T

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Pros

  • Very secure
  • Much more scalable than Bitcoin
  • Smart contracts, dApps
  • Revolutionary blockchain technology
  • Strong team of developers behind the project

Cons

  • Volatile
  • Expensive "gas" (transaction) prices

What is Ethereum: A Brief History

What is Ethereum: Vitalik Buterin.In 2012, aged 17, Vitalik Buterin was introduced to Bitcoin by his father and became very interested in its technology. Vitalik began writing for Bitcoin Magazine and suggested improvements to the Bitcoin platform. When these improvements weren’t made, he decided to make his own cryptocurrency instead.

His idea was Ethereum, and it went live in 2015. Since it started, Ethereum’s price has gone up a lot and it now has a ‘market cap’ of $44.7bn (that’s the total value of all Ethereum currency in the world today). So, why is Ethereum going up?

What is Ethereum: Ethereum market cap charts
 
Note: Ethereum’s ‘market cap’ is the total value of all Ether combined. Ether is Ethereum’s currency, whereas Ethereum itself is a platform.

Ethereum technology has real potential to change the world. What is Ethereum tech and what makes it so special, you ask? Let’s find out!

Ethereum For Newbies

Note: If you’re not a newbie, you should probably still read this, just in case!

It’s easier to answer, “what is Ethereum?” if we first ask, “what is Ethereum trying to replace?” Let’s see an example:

Matthew writes tutorials using Google Docs. He can edit his work and share it with whoever he wants. One day Google Docs is hacked, or the government bans it, so Matthew loses all his work.

Now Matthew decides that he will only use the word processor on his computer, so his work will be safe. But it isn’t safe, is it? Matthew’s computer can be lost, broken, or hacked into.

Matthew is desperate now, so he decides to sell his laptop and buy a pencil, a notepad, and some stamps instead. Job done!

Matthew’s problem here is that he wants the convenience and speed of the internet, but with the control and safety of his pencil and paper. But what is Ethereum going to do about it?

What is Ethereum: stack of Ether coins.

Ethereum offers a way to use the power of the internet without trusting apps like Facebook, Google, or your online bank with your personal information.

Apps like Facebook and Google collect and store the information of their millions of users in servers. This means that user data is kept at a very small number of locations (this is called centralization). If one of these locations is hacked into, we’re all in big trouble!

How Ethereum works is by removing the need to trust lots of apps with private information. It does this with decentralization using ‘blockchain’ technology.

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Blockchain Basics

Ethereum’s version of the internet is one where servers and clouds are replaced with a network of systems called nodes. The nodes store and maintain a shared database called a blockchain.

There are thousands of nodes in the network, all storing the entire blockchain. The more nodes there are, the safer the network and its data become. The information that you enter into this record can only be controlled by you. It isn’t stored on your computer, or in a central server — it is stored across the entire network of nodes.

The information held on the blockchain is verified by ‘consensus’. This means that more than half of the nodes must agree that information is correct before it is allowed onto the blockchain.

Hacking this kind of system is near impossible, as you would need to control more than half of the network to force a consensus. Even if you did control more than half of the network, it would cost you so much money to complete the attack, that it wouldn’t be worth it.

As I mentioned earlier, Ethereum didn’t invent the blockchain technology, Bitcoin did, but it is using and improving it in some incredible ways. So, what is Ethereum blockchain?

Note: Read our "Blockchain Explained" guide for more on blockchain technology.

Ethereum Explained: Blockchain 2.0 and its Uses

The Ethereum blockchain (or ‘Blockchain 2.0,’ as it is sometimes called) uses similar technology to Bitcoin, but it is more advanced. It can do much more than the Bitcoin blockchain. It does this in two main ways.

What is Ethereum: the Ethereum platform.

Smart Contracts

The Ethereum blockchain is designed so that transactions can only take place when certain conditions are met. The rules deciding these conditions are called ‘smart contracts’. It's an essential part of the what is Ethereum question.

For example, imagine a vending machine. If Peter wants a candy bar from a vending machine, he needs enough money to pay for it. If he doesn’t have enough money, he won’t get his candy bar. A smart contract for this transaction might look like this:

IF Peter puts $1 in the vending machine THEN the vending machine will give Peter a candy bar.

Once one of these contracts is written, it can’t be changed. That’s why they are called ‘trustless’ transactions. You don’t need to trust individuals on the network — if the conditions of the contract aren’t met, then it won’t happen.

Imagine that! A trustless global network that never goes offline!

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dApps

What is Ethereum: Centralized and decentralized applications.

Decentralized applications (or ‘dApps’) are simply applications that do not run on a traditional central server. Instead, they run on a blockchainusing it to decentralize their server.

dApps are at the core of Ethereum’s design and its beliefs. Ethereum’s founders want users to learn Ethereum and build on it. So another part of what is the Ethereum question is definitely dApps.

Ethereum has its own coding language called Solidity. Solidity is used to build dApps. Because Solidity is like JavaScript (one of the most common programming languages), it encourages developers to create new and exciting dApps.

These dApps could soon be competing with (or replacing) centralized apps, in industries like social media, e-commerce, email, and online banking. There are endless possibilities for building dApps on Ethereum’s blockchain.

A Quick Recap

Let’s quickly revisit the first part of that question we asked earlier: what is Ethereum?

What have we learned so far?

Put simply, we’ve learned that Ethereum is a blockchain that allows the user to build smart contracts and dAppsit has the potential to change the internet forever.

Without any further delay, and having a pretty clear idea of what is Ethereum, let’s have a look at the second part of that question: how does Ethereum work?

A Little More Detail: How Does Ethereum Work?

Ether is the currency of Ethereum. Sometimes, the two are confused but it’s simpler if you try to remember that Ethereum is the system and Ether is its currency.

What is Ethereum: Ethereum storage.If you want to get anything done on the system, you’ll need some Ether. Ether fuels the Ethereum system, and it’s often referred to as ‘gas’ for this reason. Each transaction on Ethereum needs a certain amount of ‘gas’ to get the job done. The bigger the job, the more gas you need.

The question of what is Ethereum and how does it work is often accompanied by the Ethereum VS Bitcoin question. As people often compare Ether to Bitcoin, so we’ll take a moment to explain the main differences.

Bitcoin

  • Bitcoin is digital money. Its blockchain allows manual peer-to-peer transfers of digital money. If Peter wants to pay Paul 10BTC (Bitcoin) to paint his house, without using a bank, he can use Bitcoin. It looks like this; Peter sends 10BTC (Bitcoin) to Paul.
  • There is a cap on how many Bitcoin can exist (21 million), so it could become a reliable store of value, like gold or diamonds.
  • The average time for a confirmed Bitcoin transaction is, although they can be as quick as 10 minutes.

Ether

  • Going back to what is Ethereum and its currency: Ether is digital fuel for the automated smart contracts of the Ethereum network. If Peter wants to pay Paul 10ETH to paint his house, he can use an Ethereum smart contract. The transaction would look like this; IF Paul paints Peter’s house THEN 10 ETH will be sent to Paul. So, as you can see, Ether can be used very similarly to Bitcoin. The only difference is that with smart contract technology, Peter won’t pay Paul until Paul has painted Peter’s house. Paul won’t get paid if he doesn’t paint Peter’s house, so he can’t cheat! This same system can be used to guide transactions of all kinds, from emails to how a company pays its staff.
  • There is no cap on how much Ether can exist. Although, the amount of Ether probably won’t go above 100,000,000 for a very, very long time.
  •  The Ethereum transaction time is very quickEther-fueled smart transactions just take seconds.

What is Ethereum Mining?

In both Bitcoin and Ethereum, new currency (Bitcoin or Ether) is created by a process called ‘mining’. Nodes on a blockchain must verify transactions; the nodes are rewarded with a new currency. For example, an Ethereum node (known as a miner) is rewarded with a new Ether.

This is called mining because it is similar to gold or diamond mining. Instead of digging in the ground, though, the miners are verifying transactions.

Mining Ether in this way is called ‘Proof-of-Work’ mining. It is called PoW (Proof-of-Work) because the node has to show that it has done the ‘work’ (verified the transactions) to receive its Ether reward. The bad thing about PoW mining is that it uses a lot of computing power and therefore a lot of electricity, making it expensive and bad for the planet. So, now you have a pretty clear idea about what is Ethereum mining.

What is Ethereum: Ethereum mining rigs.

Soon, Ethereum developers hope to start using a different method, called PoS (Proof-of-Stake). This method uses much less electricity, so it’s a lot better for energy costs and the planet!

In PoS, users with a lot of Ether are selected at random to verify transactions. This form of mining will be rewarded with fees rather than a new currency and will use a lot less power and electricity.

Note: the users that are selected in PoS to verify transactions are called ‘Stakers’ or ‘Stakeholders’.

What is Ethereum Storage?

Ether doesn’t leave the Ethereum blockchain, so it isn’t physically stored anywhere. If you want to use Ethereum, you’ll need a ‘wallet (sometimes called an Ethereum ‘address’).

Your Ethereum wallet won’t contain any Ether, but it will contain the codes needed to access it. These codes are called private keys. If you lose your private keys, you lose your Ether. So choosing a good wallet is very important! There are four main types of wallets available.

Hardware wallets

These are physical storage devices, like USB sticks. The Ledger Nano X is one of the more-expensive hardware wallets, and it offers safe offline key storage. However, just like a real set of keys, a hardware wallet can get lost. So, be careful where you put it!

What is Ethereum: the Ledger Nano S Wallet.

Desktop Wallets

Store your public and private keys directly onto your computer. This option uses a password that you mustn’t lose. It also takes up a lot of space on your device. We recommend using the Exodus desktop wallet.

What is Ethereum: the Exodus Wallet.

Mobile Wallets

Similar to desktop wallets, but use much less space — they are ideal for storing your public and private keys on your smartphone. Jaxx offers its users key storage for up to 13 different cryptocurrencies.

What is Ethereum: the Jaxx Wallet.

Web Wallets

Store your private keys online — an example of this is the KuCoin wallet. These aren't the safest type of wallet, and we do not recommend using them to store large amounts of Ether that you cannot afford to lose.

What is Ethereum: the KuCoin exchange and wallet.

Paper Wallets

What is Ethereum: a paper wallet.These are the most old-fashioned storage option — they are just pieces of paper with your access codes written on them. They can’t be hacked, but you need to remember where you put them!

If a wallet is connected to the internet, it is called ‘hot storage’. If it isn’t connected to the internet, it’s called ‘cold storage’. When storing private keys, it’s recommended that you use a combination of both hot and cold wallets for maximum security. Now you have a pretty clear idea of what is Ethereum storage and which wallet to choose.

Where to Buy Ethereum?

You can buy Ether from three main sources:

Brokerages are coin exchanges like Kucoin which buy and sell Ether for a fee. They are simple to use but may often be somewhat expensive. You can use them to buy Ether with your fiat currency (USD, EUR, etc.) using a credit/debit card or with a bank transfer.

Trading platforms like Cex.io connect the buyer and the seller in exchange by using a middleman (Cex). This is what traders use to trade one cryptocurrency for another. For example, buying Ether with Bitcoin, or selling NEO for Litecoin.

Peer-to-peer platforms like LocalEthereum allow buyers and sellers to contact each other directly to negotiate prices. This option is riskier than the other two as you are trading directly with someone you don’t know. There is no middleman, so you don’t pay any fees, and you can pay using cash too.

Another great option would be purchasing Ether coins via Simplex - a fintech company aimed at providing you with complete transaction safety and fluidity. Here, you'd be able to buy Ether with fiat money, too - meaning, with a credit or debit card.

For more information on how and where to buy Ether, you can follow our "How to buy Ethereum" guide.

What is Ethereum Doing Now?

A lot of dApps are being created on Ethereum’s blockchain and a kind of fundraising called an ICO is being used to pay for them. So, knowing what is Ethereum doing now is pretty useful.

Initial coin offerings (ICOs) allow developers to sell the idea of their product to pay for its creation — it’s like Kickstarter, but for dApps.

Check out some of the dApps being developed (or that have already been developed) on Ethereum with ICOs:

Golem is a dApp which allows users to rent the idle power of their computers to each other. It’s like being able to rent your car to other drivers when you’re not using it!

What is Ethereum: Golem.

EtherTweet is a communications platform that is very similar to a famous social media app except it’s on the blockchain so there is no central authority. That’s right, it’s a dApp version of Twitter, and it is completely uncensored!

Etheroll is an online casino that uses Ethereum’s blockchain to create fair online dice games. Although, all this new technology might already be enough of a gamble for most people!

With all this good stuff going on, it’s easy to forget that Ethereum is still very new, and still has a few issues.

Some critics think that the platform is too complicated for most users. This complexity could mean that experienced users might be able to scam newbies if they wanted to. Ethereum has been compared to DOS, because DOS needs Windows to make it user-friendly. So, maybe there will be something released later on that will make Ethereum more user-friendly!

Having a pretty clear idea about what is Ethereum doing now, we can talk about one more issue - the Ethereum ‘fork’. Put simply, this was a disagreement in the Ethereum community which split the platform in two. This is a possible flaw in how its community operates. When you run something with voting, not everyone will agree — it’s normal!

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What is Ethereum Going to be Doing In the Future?

Imagine all the different transactions that occur in everyday life. Buying or selling a car, renting an apartment, placing a bet on the World Cup Final. They all involve trusting strangers with your money and your information. Ethereum solves this issue, which means it has lots of potential for the future. So, now you not only know what is Ethereum but also how it works.

More and more real technology is connected to the internet every day — we call it the ‘Internet of Things’. Door locks, refrigerators, ovens, light bulbs, boilers, and TVs are all connected to the internet and they all need to be run safely and with clear instructions.

Now, imagine a world where smart contracts and dApps automatically guide those transactions and technologies, whilst an unbreakable record of it all is kept online, forever. Pretty cool, don’t you think?

If, after reading this guide, you've decided that you'd actually like to purchase some Ether, you can do so in one of the more trustworthy crypto exchange platforms - Kucoin or Simplex are two of the better examples.

  • On Kucoin, you'll have to register and verify your identity before you can make any purchases or sales. Do so (the processes are very simple and rather quick to do), and then simply purchase ETH via your desired method of payment.
  • With Simplex, things are usually going to be even faster and smoother - simply enter the amount of ETH that you want to purchase, your card information, and any other data that you might be asked to point out - that's it!
  • Where to store your ETH is a crucial decision that you have to make, too. If you're an active trader, then a hot wallet (such as Exodus) could be a good choice. If you plan on holding onto your Ether, though, do take the cold wallet route and invest in a Ledger Nano X or Trezor Model T.

We asked a question at the beginning of this guide, what is Ethereum? Well, the real answer is, Ethereum is anything you want it to be. Whether you want to trade Ether or create a brand new dApp, the possibilities are endless! So, get started, learn Ethereum, and think big. The future starts now!

The content published on this website is not aimed to give any kind of financial, investment, trading, or any other form of advice. BitDegree.org does not endorse or suggest you to buy, sell or hold any kind of cryptocurrency. Before making financial investment decisions, do consult your financial advisor.

About Article's Experts & Analysts

By Aaron S.

Editor-In-Chief

Having completed a Master’s degree on Economics, Politics & Culture for the East Asia region, Aaron has written scientific papers with a comparative analysis of the differences between US’ Western and Japan’s Collective forms...
Aaron S., Editor-In-Chief
Having completed a Master’s degree on Economics, Politics & Culture for the East Asia region, Aaron has written scientific papers with a comparative analysis of the differences between US’ Western and Japan’s Collective forms of capitalism, 1945-2020.
With close to a decade of experience in the FinTech industry, Aaron understands all of the biggest issues and struggles that crypto enthusiasts face. He’s a passionate analyst who is concerned with data-driven and fact-based content, as well as that which speaks to both Web3 natives and industry newcomers.
Aaron is the go-to person for everything and anything related to digital currencies. With a huge passion for blockchain & Web3 education, Aaron strives to transform the space as we know it, and make it more approachable to complete beginners.
Aaron has been quoted by multiple established outlets, and is a published author himself. Even during his free time, he enjoys researching the market trends, and looking for the next supernova.

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FAQ

Is Ethereum a cryptocurrency?

Ether is the cryptocurrency, and Ethereum is the technology on which the cryptocurrency has been based. That said, most people still call the cryptocurrency Ethereum, since it's a more widespread way of referring to the currency. Even some of the most popular crypto exchanges call the currency 'Ethereum'!

Is Ethereum worth investing in?

If you were to invest in Ethereum because you just want to make money while doing so, then it depends on a wide variety of different factors. If, however, you believe in the technology side of Ethereum, and want to be a part of its development (rather, invest in it), then surely, it's worth looking into - many people believe Ethereum to be the future!

How to pick the best crypto exchange for yourself?

Picking out the best crypto exchange for yourself, you should always focus on maintaining a balance between the essential features that all top crypto exchanges should have, and those that are important to you, personally. For example, all of the best exchanges should possess top-tier security features, but if you’re looking to trade only the main cryptocurrencies, you probably don’t really care too much about the variety of coins available on the exchange. It’s all a case-by-case scenario!

Which cryptocurrency exchange is best for beginners?

Reading through various best crypto exchange reviews online, you’re bound to notice that one of the things that most of these exchanges have in common is that they are very simple to use. While some are more straightforward and beginner-friendly than others, you shouldn’t encounter any difficulties with either of the top-rated exchanges. That said, many users believe that KuCoin is one of the simpler exchanges on the current market.

What is the difference between a crypto exchange and a brokerage?

In layman’s terms, a cryptocurrency exchange is a place where you meet and exchange cryptocurrencies with another person. The exchange platform (i.e. Binance) acts as a middleman - it connects you (your offer or request) with that other person (the seller or the buyer). With a brokerage, however, there is no “other person” - you come and exchange your crypto coins or fiat money with the platform in question, without the interference of any third party. When considering cryptocurrency exchange rankings, though, both of these types of businesses (exchanges and brokerages) are usually just thrown under the umbrella term - exchange. This is done for the sake of simplicity.

Are all the top cryptocurrency exchanges based in the United States?

No, definitely not! While some of the top cryptocurrency exchanges are, indeed, based in the United States (i.e. KuCoin or Kraken), there are other very well-known industry leaders that are located all over the world. For example, Binance is based in Tokyo, Japan, while Bittrex is located in Liechtenstein. While there are many reasons for why an exchange would prefer to be based in one location over another, most of them boil down to business intricacies, and usually have no effect on the user of the platform.

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