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What is a Cryptocurrency? Explaining Crypto for Beginners

So, what is a cryptocurrency? Let's talk!

Back in 1990, people started asking “what is the Internet?”. Thirty short years later, it’s a question that no longer needs to be asked.

Thirty years from now, people won’t need to ask, “what is a cryptocurrency?”. It will be a normal part of their everyday lives, just like the internet is today. By the end of this guide, you won’t need to ask, either.

After reading this guide you will be able to answer, “what is a cryptocurrency?”, and many other questions, too. You’ll know why they were invented, what they are used for and why we will still be talking about them in 2046!

There’s no time to wait, so let’s get started!

Dr. Amanda Kavner

PhD and Visiting Assistant Professor at State University of New York

How do you see the integration of blockchain technology and cryptocurrencies impacting traditional educational models?

As we approach a new era in education, the merging of blockchain technology and cryptocurrencies is poised to revolutionize the way we think about education. This integration has the potential to bring about exciting changes that prioritize innovation, transparency, and inclusivity, ultimately reshaping the educational landscape for the future.

How to Learn Crypto The Easy Way? (Trending Beginners' Strategy)

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How to Learn Crypto The Easy Way? (Trending Beginners' Strategy)

How to Learn Crypto The Easy Way? (Trending Beginners' Strategy) How to Learn Crypto The Easy Way? (Trending Beginners' Strategy)

What is a Cryptocurrency: The Definition

There are many kinds of cryptocurrencies, but they all have the same six things in common. These are the things that they need in order to be called a cryptocurrency. Get ready for some big words!

Cryptocurrencies are:

Digital: Cryptocurrency is digital money (or digital currency, it means the same thing). This means that it only exists in computers. Cryptocurrencies don’t have coins with a picture of a Queen’s head on them, or paper notes with ‘In God We Trust’ written on them, either.

Peer-to-Peer: Cryptocurrencies are passed from person to person online.

Global: There isn’t one cryptocurrency for Spain and another for China, for example. A cryptocurrency is the same in every country. They can be used freely between countries and across borders.

Encrypted: There are no rules about who can use cryptocurrency, and what they can use it for. Real names aren’t used for accounts. Each user is given codes instead. This is where we get the crypto part of the cryptocurrency definition. Crypto is Latin for "hidden". So, cryptocurrency translates as hidden money.

Decentralized: In the cryptocurrency world, there are no banks. Everyone is in charge of their own money, it isn’t kept in a bank. A bank is a center where lots of people keep their money. Cryptocurrencies are not managed by a central server, that’s why we say they are decentralized.

Not trust-demanding: The way cryptocurrencies are built means that you don’t have to trust anyone in the system in order for it to work.

It’s a very strange idea, isn’t it? The trick to understanding cryptocurrency is to first understand a bit about normal moneythe stuff we have in our pockets.

How Normal Money Works

The money in our pockets isn’t worth anything by itself, it’s just paper and bits of metal, right? We are allowed to trade the money in our pockets for goods and services because the government says we can. This is called fiat money. US dollars, British pounds and Chinese yuan are all fiat currencies.

We know that when we go to the grocery store, we can trade the fiat money in our pockets for food. We know this because we trust what the government tells us.

When we have more fiat money than we can keep in our pockets, we open a bank account. To open a bank account, we must give the bank our personal information. When our money is in the bank, we can’t see it, but we know it’s there. So basically, we trust the bank.

What is a cryptocurrency: a man placing coins into a jar.

Banks are an example of what we would call a trusted third-party system. Banks and governments are third-party companies that we trust. To make it clearer, let’s see an example.

Peter is hungry, and Paul wants his fence painted. Paul goes to the bank and takes out $10. Paul then pays Peter $10 to paint his fence. Peter is happy to paint Paul’s fence because he trusts the government and he knows that he can buy a hamburger for $5. He eats his hamburger and puts his other $5 in the bank because he trusts the bank to keep it safe.

The transaction above is only between Peter and Paul, but it needs them both to trust a third party for it to work.

How Does cryptocurrency do Things Differently?

Cryptocurrencies don’t need banks and governments. Users can send each other money online, without needing to trust each other or any third parties with their money or information.

Cryptocurrencies do this by recording every transaction (like the one above between Peter and Paul) on a shared database called a blockchain. This blockchain is shared across thousands of powerful computer systems called nodes.

Each new transaction is verified by a node. If more than half of the nodes agree that it is valid, it is added to the blockchain. Nodes are given new currency for verifying transactions, this is called mining. Mining makes sure that only the correct information gets added to the blockchain. Once transactions are added to it, they can’t be changed or deleted.

What is a cryptocurrency: Dogecoin cryptocurrency logo.

You don’t have to give your name, address, or date of birth when you use cryptocurrency. Your account has a public key and a private key. Think of it as being like your email account. Your public key is like your username and your private key is like your password. You need both to access your account.

Users are hidden, but transactions aren’t. Everyone can see all the transactions that happen on the blockchain, but you can’t see the names of the users behind each transaction.

Cryptocurrency for Newbies

Now, if a newbie (and we all know one!) asks you, “what is a cryptocurrency?”, tell them that it’s digital money that you can send to anyone on the planet without using a bank. They don’t need to provide any personal information to make a transaction, and transactions take place on a network they can trust.

The newbie might also want to know how cryptocurrencies got started. Not a problem! Keep reading and you’ll be able to answer that question, too!

The Story of Cryptocurrency

In the 1990s, lots of different people tried to build cryptocurrencies. The ones that came closest were DigiCash, HashCash and B-money. None of them got the technology quite right or the support they needed to succeed.

The story of cryptocurrency really gets started with Bitcoin. Bitcoin was the world’s first real cryptocurrency, and is still the most famous. Bitcoin’s creator is called Satoshi Nakamoto, but no-one knows who that is! No-one has ever met Satoshi in person. They could be a man, a woman or a whole group of people!

On January 12, 2009, Satoshi’s Bitcoin blockchain went online. The first trade of Bitcoin was for 10 BTC (Bitcoins). Satoshi sent it to a coder called Hal Finney.

Satoshi only ever spoke on internet message boards and in emails. By April 2011, Satoshi was gone. All that’s left of Satoshi Nakamoto is Bitcoin — and the name.

What is a cryptocurrency: Bitcoin cryptocurrency front page.

It took a couple of years for people to become interested in Bitcoin. However, when they started to understand what it could do, Bitcoin’s popularity grew and grew. People saw that Bitcoin had all six of those things we listed earlier, and they started buying it and using it.

So, what is a cryptocurrency like Bitcoin used for? Well… let’s talk about one of the websites where people first started using Bitcoin — which helped to make it famous!

Silk Road

Silk Road was an online black market. It was like an illegal Amazon or eBay. It used Bitcoin as its main trading currency. Customers could buy all sorts of things, using Bitcoin, without anyone knowing who they were. Many of these things were illegal, things like drugs, stolen goods, and weapons. Silk Road even had adverts for assassins!

Silk Road was shut down in 2013, after two years of trading. America’s FBI seized millions of dollars’ worth of Bitcoins, making it a very unlikely member of the cryptocurrency community!

The Silk Road story made it into newspapers across the world. This was both good and bad for Bitcoin. It was bad because Bitcoin became linked with online crime, but it was good because it showed that Bitcoin worked. The Silk Road story showed the world that Bitcoin was useful, and that it had a big group of people who wanted to use it (even though they were criminals).

What Happened Next?

When it went live in 2009, Bitcoin was worth zero dollars and zero cents. In April 2011, you could get 1 Bitcoin for $1. On December 17, 2017, Bitcoin had its best day so far. You could trade 1BTC for $20,052! Today, on August 7, 2023, you can trade 1BTC for $11,822. Not bad, right?

Cryptocurrency trading has become very popular. Hundreds of other cryptocurrencies have followed Bitcoin into the market, they are called altcoins.

Like Bitcoin, altcoins use blockchain technology, but they try to do things a little differently. Let’s have a look at the best of the rest;

  • Litecoin is very similar to Bitcoin, but its system makes mining easier for users who don’t have powerful computers.
  • Dogecoin is a fun-based altcoin with a Shiba Inu dog as its mascot. Fans of dogecoin often use it to support good causes, like wells in Kenya and the Jamaican Bobsled Team!
  • BitcoinCash was created when a group of Bitcoin users disagreed with some of Bitcoin’s rules and broke away to form their own digital currency in 2017. A big disagreement like this is known as a hard fork.

Note: You can imagine a hard fork in a similar way to how a mobile phone update works. Some people choose to upgrade their phones, whereas some people don’t. It is still the same phone, however, it has different features.

Not everyone who uses blockchain technology is trying to create cryptocurrencies. Some people are trying to build blockchains that are bigger, better, and can do more. The most well-known example of this is Ethereum.

What is a Cryptocurrency When it’s Not Really a 'Currency'?

Ethereum’s creator Vitalik Buterin wanted to build a blockchain that was more advanced than Bitcoin’s. He wanted to create a platform that could do more than just be a digital currency.

Ethereum allows users to build dApps and set up smart contracts. Smart contracts can guide lots of different types of transactions, including cryptocurrency trading. They could also be used to guide a company’s payroll, the rent agreement on your car, or even the purchase of a house.

Note: dApps are like regular apps (like Facebook, Google or Twitter) but they run on a blockchain, not a central server. You can find out more about dApps in our "What is a dApp" guide.

Put it this way - if Bitcoin wants to replace your online banking app, then Ethereum wants to replace all of your other apps! Now, do you see what I mean?

The way Ethereum is using blockchain technology is seen by many people as the future of cryptocurrency. Ethereum is the next big thing!

What is a cryptocurrency: the Ethereum platform.

To learn more about Bitcoin and Ethereum, see our Ethereum VS Bitcoin guide.

We now know how to answer quite a few questions;

  • What is a cryptocurrency?
  • When was cryptocurrency created?
  • What are the main cryptocurrencies out there?

Now, let’s ask another very important question.

Are Cryptocurrencies a Good or a Bad Thing?

Good things about cryptocurrency (Yay!)

  • It’s transparent: This means that everyone using a cryptocurrency blockchain can see every trade that’s ever been made. You don’t need to trust other users.
  • Personal control: This means that every user is in charge of their own money, no-one but the user can get to it. It’s decentralized, remember? So, it’s different from giving the bank control of your money.
  • It’s for everyone: Cryptocurrencies are open to every person on the planet. Banks have rules about who can have an account, crypto doesn’t. There are two billion people around the world that don’t have full access to bank accounts!
  • It’s fast: A Bitcoin trade takes about an hour, although it can take as little as ten minutes. At most banks, an international bank to bank transfer can take 1-5 days.
  • It’s safe: A cryptocurrency blockchain network is spread over thousands of computers, making them nearly impossible to hack.

Some bad things about cryptocurrency (Booo!)

  • It can be unstable: Cryptocurrencies need to be more popular before everyone starts using them. Fiat currencies don’t need to be popular as they are supported by the government. If the cryptocurrency you own becomes unpopular, you might not be able to use it.
  • If you lose it, it’s gone forever: If your cryptocurrency goes missing - or you lose your private key - you can’t get it back. You can’t telephone Bitcoin to complain. Remember, it’s not a bank.
  • Criminals like it: If you’re a criminal then this probably isn’t a bad thing, but for the rest of us — it is! Cryptocurrency accounts are hidden, so people can use them for a crime. If people see that criminals and terrorists are using it, they might not want to use it themselves.

Before we finish our guide to cryptocurrency, let’s answer one more question.

Conclusions - How Can Cryptocurrencies Change the World?

In life, we must be very careful about who we trust. Most people only really trust their family and their friends. We wouldn’t give our personal information to a stranger in the street, because we don’t trust them. However, this is exactly what we do every time we open a bank account or pay for something online.

We might be able to trust banks, governments, and other third parties most of the time, but we can’t trust them all the time.

In 2008, the world economy crashed. Banks had used the money they had been trusted with very badly. The governments of the world were unable to stop millions of people from losing lots of money.

Something else was also happening in 2008 — Bitcoin was being created. Coincidence? I think not.

Cryptocurrencies remove the power that banks and governments have over our lives. They give the power back to us. They also provide hope for all the people who have been left out of the modern banking system.

What is a cryptocurrency: the 2008 financial crisis.

Think of what cryptocurrencies could bring to countries like Afghanistan. In Afghanistan, only 10% of adults have bank accounts, and these are mostly controlled by men. What is a cryptocurrency to an Afghani woman? Freedom.

Syria, Yemen, and Libya are all in a state of civil war. Imagine being able to send aid to the people of these countries directly. What is a cryptocurrency to a Syrian? It’s a link to the rest of the world, to people who want to help.

And finally...

When we ask questions like “what is a cryptocurrency?”, we are really asking “what is a cryptocurrency going to do for me?”. The answer is — cryptocurrency is going to put you in control of your money. Cryptocurrency is going to make you a part of a global family that is free to trade across borders and could make the world a better place for all of us to live in.

What do you think? Are you interested in the world of crypto, and ready to hop on to an exchange and start trading? 

About Article's Experts & Analysts

By Dr. Amanda Kavner

PhD and Visiting Assistant Professor at State University of New York

Amanda Kavner completed her Ph.D. in April 2020 in the Curriculum, Instruction, and the Science of Learning Program at the University at Buffalo, concentrating on Machine Learning applications in Computational Cognitive Neuroscience. As a high sch...

By Aaron S.

Editor-In-Chief

Having completed a Master’s degree in Economics, Politics, and Cultures of the East Asia region, Aaron has written scientific papers analyzing the differences between Western and Collective forms of capitalism in the post-World War II era. W...
Aaron S., Editor-In-Chief
Having completed a Master’s degree in Economics, Politics, and Cultures of the East Asia region, Aaron has written scientific papers analyzing the differences between Western and Collective forms of capitalism in the post-World War II era.
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.
Dr. Amanda Kavner, PhD and Visiting Assistant Professor at State University of New York
Amanda Kavner completed her Ph.D. in April 2020 in the Curriculum, Instruction, and the Science of Learning Program at the University at Buffalo, concentrating on Machine Learning applications in Computational Cognitive Neuroscience. As a high school educator, college professor, and researcher, Kavner focuses on new research applications in the classroom. Her research concentrates on developing and applying cognitive computational models in educational assessment and curricular development using machine learning algorithms to analyze neurocognitive measurements recorded in educational environments. In Web3, Kavner aims to use her expertise and research to help Web3 companies focus their educational efforts to create resources easily understood and remembered by mainstream individuals.

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FAQ

What are cryptocurrencies good for?

If you're trying to find out what is a cryptocurrency (such as Bitcoin or Ethereum), without a doubt, you'll soon notice that cryptos are used for a lot of different reasons. Without a doubt, the main one would be to make transactions without a middleman - i.e. a bank. This puts control of your money into your own hands - the possibilities of this technology are endless!

Can anyone buy or sell cryptocurrencies?

Yes, and that's kind of the point of cryptocurrencies, too - they are available to anyone and everyone around the world, no matter where you live. Cryptos transcend geographical and country borders - there are no restrictions that would apply when you're using an exchange (such as Binance or Coinbase) for those living in either the US, or, say, Japan.

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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