What is a Cryptocurrency?
In this guide we will explain just what is a cryptocurrency, and why you should care. You might have heard about cryptocurrencies, blockchain or Bitcoin through colleagues at work, in the papers or by a tech-friendly relative. But you’re not yet completely clear to what they all mean, and why it should be of any interest to you. So let’s get started exploring together.
In this guide to cryptocurrency markets you will learn:
- What is a Cryptocurrency? Everything you need to know right here
- Bitcoin: The beginning of a new digital currency universe
- Blockchain is the technology behind cryptocurrencies
- This is how cryptocurrencies work
- There are thousands of different cryptocurrencies
- Why you should be interested in Cryptocurrencies
“Bitcoin is a remarkable cryptographic achievement and the ability to create something that is not duplicable in the digital world has enormous value.”– Eric Schmidt (ex CEO of Google)
Bitcoin is the first cryptocurrency ever created and also heralded the start of a new, exciting digital age. Created by an unknown mysterious figure known only as Satoshi Nakamoto it was created as an answer to the global financial crisis in 2008 and the result of emerging digital technologies.
Bitcoin is built on a technology known as the blockchain. The blockchain is a super exciting new technology that is currently taking the world by storm. Almost every industry is going to be transformed or affected by this new technology in one way or another. To really understand its potential, imagine a decentralised world where all the applications we need in our lives are running on smart digital technology, which remove unnecessary middlemen and work through smart automated technologies.
The technology known as blockchain is what most of the world’s cryptocurrencies are built on. To summarise briefly what the blockchain is, we have taken this paragraph from another Go Cryptowise article:
“Blockchain is a decentralised and distributed record of transactions, that is shared across a network. This means it’s not owned or controlled by one entity. Every transactions is put onto a block of data. And each block of transactions has a record of the previous blocks, forming a chain of blocks. This makes all the information shared on the blockchain transparent, immutable and trusted”.Go Cryptowise
In the blockchain model, new blocks of transactions are added to this decentralised ledger, and every new block contains information of all previous blocks. Thus creating an immutable and continuous record of past transactions. Each block holds the data from previous transactions which is cryptographically coded, known as hashes, designed to create a secure and tamper-proof database record.
What each block contains:
- A nonce (a number only used once – basically a 32-bit arbitrary random number)
- A full list of previous transactions
- A timestamp
- The group of new transactions being added onto the block
Why blockchain is amazing
- It is a decentralised technology, where no government or ruling body can control it, or own it – fundamentally it is bringing back the power to the people
- It can be used in almost every industry in the world and brings tremendous value. Through added Smart Contract technology and decentralised applications, there are no limits to the potential use cases
- It will continue the rise of a transparent and open world, where we get better insight to where our taxes goes to, how policies are formed and increased control of our personal data
Find out more about how blockchain is going to change the technology landscape for most global businesses in coming years here
To find out more about what the blockchain is and how it works visit this guide here below.
A cryptocurrency or a virtual currency is something that only exists digitally. It only lives on the network that it is running on. Cryptocurrencies were created to solve the problem of double spending, which is a potential flaw with digital currencies, where the same digital coin/token can be spent more than once. If people could just copy the digital currencies and spend them endlessly, it would cause inflation and bring down the entire system.
As we have mentioned, Bitcoin was the first ever cryptocurrency and it works on a so-called Proof of Work mechanic. That means that people around the world can perform a computational task known as mining to solve complex digital algorithms. In return for their work, they get rewarded with Bitcoins (or parts of Bitcoins). This mining process validates new transactions that are later on added to the blockchain forever.
At the beginning of Bitcoin’s time, anyone with a personal computer could get started mining it. But since then it quickly grew very popular, and people started using better tech to mine faster and increase their rewards. Today, no one is really using their personal computers at home to mine Bitcoin, but specialised mining rigs are used. And anything else won’t be able to compete.
But this mechanic, known as Proof of Work (PoW,) is a so-called ‘consensus model’ in the blockchain and cryptocurrency world. For a long time it was the only model existing, but today there are new additions known as Proof of Stake, and Proof of Authority.
Proof of Stake
Proof of Stake or PoS, is a method used to secure a blockchain network and validate the transactions on it. Without it, the blockchain wouldn’t be able to function. With PoS the owners of the cryptocurrencies running on that blockchain stake their coins and those coins are used to validate transactions and create new blocks.
Proof of Authority
Proof of Authority is a similar type of Proof of Stake blockchain method to Proof of Stake. With PoA only certain nodes are allowed to validate new blocks. So instead of the focus and priority given to nodes and holders with more cryptocurrency staked (PoS), they give priority to pre-selected validators.
To read the full guide on what Proof of Stake and Proof of Authority is click here.
The most well known cryptocurrency in the world is of course Bitcoin! And yes to your question: are there more cryptocurrencies than Bitcoin? In fact there are more than a thousand different cryptocurrencies in the world as we speak. But they are far from the same, and they all provide different use cases and purposes.
Check out the top 10 cryptocurrencies in the world here below (for a full list and live prices for all the cryptocurrencies visit our Live prices page)
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There are also different classes of cryptocurrencies
Cryptocurrencies can be broadly classified into three different categories. They are known as:
- Bitcoin (The first ever created cryptocurrency and the world’s most famous one – also known as Digital Gold)
- Altcoins (Are another type of cryptocurrency. All other coins that were created after Bitcoin are collectively known as altcoins)
- Tokens (Another type of cryptocurrency that exists are called tokens. Tokens are cryptocurrencies that are hosted on another crypto network. Ethereum was the pioneer of the crypto token feature)
To find out more about Bitcoin, Altcoins and tokens visit our guide on the different types of cryptocurrencies here below.
Beyond that there are also different types of cryptocurrency assets:
- Stablecoins – cryptocurrencies that are designed to keep a stable price. Most cryptocurrencies are very volatile and this presents itself with its own issues of course, hence stablecoins were created. A stablecoin can be pegged to the USD, EUR or other Fiat currency for example, by being backed by an equal amount of Fiat assets
- Security token – derives value from external assets and is a tradable asset itself. It is classified as a security token and thus becomes subject to traditional federal securities regulations. This new space of tokens is still not yet regulated and defined
- Utility tokens – assets that are created to be used on the blockchain. These tokens are not created as traditional investment assets, but represent individual usage on the blockchain and thus create value and speculative opportunities
Interesting future use cases for cryptocurrencies
Some cryptocurrencies are like digital money, which we can use to pay for products and services. Examples of those cryptocurrencies are Bitcoin, Litecoin and Nano. Then there are smart contract cryptocurrencies like Ethereum, VeChain and Neo. And beyond that we have a whole range of different cryptocurrencies running off different types of blockchain supporting new products and industries like E-Sports, supply chain industry, banking, insurance, casinos and so much more. The potential of cryptocurrencies is almost limitless.
Cryptocurrencies and Bitcoin keep on dividing the world
It seems at times that people can be grouped into two camps, where one group is excited by this new technology they believe can positively shape the future, and the other think it is harmful and will be a negative influence.
One the one hand, we’ve got famous investors, brilliant tech and seasoned financial experts people like Warren Buffet, Bill Gates, Mark Cairney talking down Bitcoin and cryptocurrencies as harshly as they can:
“‘(It is) rat poison squared’ and trading Bitcoin ‘something like dementia'”Warren Buffet
“Bitcoin is a sort of tulip. It’s an instrument of speculation but certainly not a currency and we don’t see it as a threat to central bank policy.”Vitor Constancio, the former Vice President of the European Central Bank
And then on the other side you’ve got people from similar backgrounds promoting this new technology and standing behind it as firmly as they can:
“It’s bigger than the Iron Age, the Renaissance. It’s bigger than the Industrial Revolution.”Tim Draper – Successful Venture Capitalist investor
“Bitcoin is the beginning of something great: a currency without a government, something necessary and imperative.”Nassim Taleb a Lebanese–American scholar and former trader and risk analyst
- Obviously they are a form of investment. So making money via cryptocurrencies is often the primary reason for why so many people get interested in them
- They are part of a new transformative set of technologies, which could fundamentally change big parts of the world forever. Being part of that should be exciting enough!
- They represent a shift where privacy, decentralisation and transparency are central to us as citizens, societies and how we interact with each other
Are cryptocurrencies a smart investment?
So maybe one of the most important questions you could ask yourself after reading this guide and researching about cryptocurrencies is, are they a smart investment or not? Well, as with any investment it is crucial for you to do your own research and truly understand what you’re investing in before throwing all your money in. But this new emerging technology brings with it an exciting investment opportunity, and here’s why:
- Potential for really high returns – Cryptocurrencies have by far been the most rewarding investment option in recent times. Popular cryptocurrencies such as Bitcoin and Ethereum have increased over thousands of percentage in value in just a few years.
- It is a market that never sleeps, similar to how the world works these days, cryptocurrency trading is a global phenomenon where you can trade instantly with people from all over the world with thousands of different cryptocurrencies
- It is still such a young and interesting space, where no one can really tell where it will all end up. But what we can tell is that some of the most brightest people from the financial and tech world are all heading into the world of blockchain and cryptocurrencies. It’s like being at the heart of the digital age with Internet and Smartphones being born again
If you are thinking about investing in cryptocurrencies, then you should familiarise yourself with how to invest in cryptocurrencies. It’s a bit trickier than perhaps other types of investments, but don’t worry we have created the perfect guide for you to get started here below. It will give you our best and most popular tips, a rundown of the common mistakes to avoid and suggestions from the crypto community. Making your first cryptocurrency investments a bit smarter.
The steps to invest in cryptocurrencies are essentially this though:
- Find a cryptocurrency that you want to invest in. Something that you believe in, maybe it is Bitcoin or something new and with great potential
- Decide on which cryptocurrency exchange to use for buying that cryptocurrency (we recommend Binance, Coinbase – get $10 free when signing up, Kucoin for beginners)
- Buy a secure wallet to store your new cryptocurrency that you bought
- Wait to see if your investment is rising in value and maybe take some profit – follow live prices for all cryptocurrencies here
We are glad that you read all the way to the end of this guide, now you should be much more knowledgeable about what cryptocurrencies are, what the blockchain is, what are some interesting use cases for cryptocurrencies, and if investing in cryptocurrencies seems like the right choice for you.
If you ever are unsure about something then either leave a comment here below or get in touch with us here.
Other popular guides:
- The best way to invest in cryptocurrencies
- The best tools for your crypto taxes
- Best ways of converting Bitcoin to cash
- How to invest in Bitcoin the beginner guide
Per Englund – Founder of Go CryptoWise a cryptocurrency and tech fan that wants to see better and smarter products and services that makes our lives better and easier