What is Bitcoin?
Before a proper definition of Bitcoin can be given, you need to understand that Bitcoin can essentially mean two things. On the one hand, you have the Bitcoin network that works through blockchain and on the other hand, you have Bitcoin as a means of payment.
Below we will first discuss the operation and function of Bitcoin as a means of payment. The technical aspect will be discussed later.
Bitcoin as a means of payment
Everyone knows the stories of people who bought a pizza a few years ago with a few Bitcoins. These people used Bitcoin as a means of payment. After all, they bought something with it. Many people will be surprised how easy it is to use Bitcoin as a means of payment. A relevant comparison is sending an e-mail. You cannot send an e-mail without having entered an e-mail address. With Bitcoin, you have a so-called bitcoin address. This consists of several characters.
Bitcoins are sent via the Bitcoin network. This is a network to which many computers all over the world are connected. A payment with Bitcoin generally has no intermediate stops. This makes transactions peer-to-peer and the network decentralized. It is relevant to mention that all transactions are stored in a public logbook. In principle, everyone can view this logbook. This promotes transparency. You will understand that only you are the boss of your own Bitcoins. The key to spending Bitcoins, you store locally.

What are the benefits of Bitcoin?
In concept it all sounds very nice, but does Bitcoin also have practical advantages? Fortunately, it does. The network is very solid. This makes Bitcoin potentially a reliable and safe means of payment. This security has everything to do with the decentralized nature and the (complex) operation of cryptography. In that sense, it does not matter whether you want to transfer small amounts or large amounts in Bitcoins, security is guaranteed at all times.
It should also be said that the Bitcoin network is set up in such a way that transactions are transparent, but they do not necessarily have to be traceable. A transaction does not point to you if desired. Paying with Bitcoin is also possible worldwide at relatively low transaction costs. Transactions are in principle irreversible, this in the context of the security of the network.
Are there any disadvantages?
Unfortunately, there are always disadvantages, also with Bitcoin. For example, you yourself bear quite a bit of responsibility when you make transactions with Bitcoin. Another disadvantage is the fact that mining costs a lot of energy and can therefore be relatively expensive. However, it should not be forgotten that Bitcoin is still in its infancy. There is always room for improvement. The more people trust in the future of cryptocurrencies, the better they will function.
The technical side of the Bitcoin story
Now that the practical part of Bitcoin is clearly illuminated, there is room for some depth. If you really want to understand what Bitcoin is and why it has so much potential, you will first have to understand how Bitcoin works as such. Of course, you can trade Bitcoin perfectly well without having this knowledge. Nevertheless, it can still be very pleasant for yourself.
A small note in advance: when it comes to cryptocurrencies , you will quickly encounter many English terms. Do not let this scare you. These English terms are easy to understand and are therefore often used when talking about cryptocurrencies.

How Blockchain and Mining Work
The blockchain is the beating heart of Bitcoin. Without blockchain, the whole idea of Bitcoin would be worthless. But what is a blockchain? A blockchain is a chain of blocks. These blocks consist of multiple transactions. Before a block full of transactions can be added to the chain with other blocks, an extremely complex cryptographic algorithm must be solved by a computer. Solving this requires a lot of computing power from a computer.
Verifying and chaining these blocks is called ‘mining’. So-called miners use their computer(s) to verify transactions. For this you need a very powerful computer that has one or more strong graphics cards and the necessary cooling. These computers often run at full power day and night. This costs a lot of power. In addition, the hardware is used heavily and therefore needs to be replaced quite quickly.
But if mining is so expensive on balance, why do people do it? Most miners do it for the block rewards that come with mining. This basically means nothing more than the fact that a miner is rewarded with Bitcoins.
When Bitcoin first came into existence, people received 50 Bitcoins per block, nowadays this is about 12.5 Bitcoins per block. Every four years, the amount of Bitcoins belong per block is halved. In addition to the block rewards, the miner also receives (voluntary) fees. The intention is that these fees will eventually replace the block rewards entirely. After all, Bitcoins will eventually run out.
Mining is therefore relevant when talking about ‘creating’ new Bitcoins. However, it is important not to forget that mining also plays an essential role in guaranteeing security. During mining, transactions are verified. The fact that so much computing power is needed to mine a Bitcoin means that not many people will dare to do it. This keeps people with bad intentions at bay.
Operation of transactions and associated fees
Earlier we briefly mentioned that the Bitcoin network functions completely decentrally. This means that the transactions are not only stored or verified in one fixed location. Transactions that are made are spread across many computers worldwide within a few seconds. Each of these computers will then keep a copy of the blockchain. These computers also all keep track of which transactions still need to be recorded.
Do you enter this network for free when you want to have a transaction included in the blockchain? The answer is no; you pay a very small amount of ‘transaction costs’. The unit for these costs is of course Bitcoin. These costs go to the miner. This is for example 0.0002 Bitcoin. The higher the fee, the faster it will be included in a block. When the network is busy, it is therefore sometimes advisable to use a higher fee.
What is a Bitcoin address?
A bitcoin address is comparable to your email address or an account number, only a bit longer. A bitcoin address consists of a combination of 34 letters and numbers. Bitcoin addresses do not appear in the blockchain. Regular bitcoin addresses generally start with a 1. The more advanced transactions are carried out using a bitcoin address that starts with a 3.
You can (unfortunately) not make up your own bitcoin address. The bitcoin address and the associated private key are generated completely randomly. Because a bitcoin address is so long, the chance that the same code is generated twice is zero.
What are inputs and outputs?
Bitcoin has its own scripting language. This scripting language can serve many more applications than just transferring Bitcoins. Before diving into the details, you should understand that each transaction consists of multiple inputs and outputs to which a Bitcoin value is linked. For example, it is possible to split Bitcoins up to eight decimal places. So you don’t necessarily have to buy a whole Bitcoin. Bitcoins that have not yet been spent are divided over the so-called unspent outputs. When you pay with Bitcoins, you fill in 1 or more unspent outputs and then create 1 or more new unspent outputs. This way, the scripts always remain correct.
To clarify, you can see an unspent output as digital money locked in a well-secured vault. When you solve the script, you are allowed to open the vault to spend the digital money. In normal cases, you open the vault with a private key using a digital signature. Of course, you need to have the bitcoin address of the other party when you want to make a transaction.
In addition, there are also the so-called multisignature transactions. As the terminology suggests, these are transactions that require multiple private keys. These are digital safes that work a lot more complexly. The bitcoin addresses that are linked to these, start – as mentioned before – with a 3.
In theory, the possibilities regarding opening, closing and securing the digital safe are endless. For example, you could put Bitcoins in a safe with an extra password or a safe that cannot be opened at all. For the advanced user, there are more than enough possibilities.
The security of Bitcoins
The security of transactions relies on the cryptography of public and private keys. The private key is linked to the public key. However, it is important to know that with the public key you cannot really find out what the private key is. You could compare it to constructions that use encryption and decryption. However, with Bitcoin transactions there is nothing to decrypt. The encryptions only need to be checked.
How can you get Bitcoin?
Bitcoin has seen a significant increase in popularity in recent years. Everyone seems to be talking about this interesting cryptocurrency. But how do you actually get it? Basically, there are several ways to get Bitcoin. You can find these below.
First, you can simply buy Bitcoin at a crypto exchange . Such an exchange offers you the opportunity to buy crypto coins and store them directly in your digital wallet. You can also sell your crypto coins at such an exchange. By purchasing at an exchange, you actually own Bitcoins.
Interested in buying bitcoin? Then definitely check out the widget below from Bitvavo . Here you can see the price trend of Bitcoin. It is also possible to see the current price and the expected costs for buying bitcoin.
In addition, you can also receive Bitcoin as a reward for mining these. You will then have to use your hardware to verify transactions. It is relevant to mention that before you start mining, you should do sufficient research. In practice, mining in the Netherlands does not appear to be very profitable, because you are confronted with high costs for electricity and hardware. Nevertheless, mining is a legitimate way to receive Bitcoin. However, this is a method that is less suitable for the non-advanced user who only wants to purchase some cryptos.
It is also possible to easily trade Bitcoin with CFDs . Many CFD brokers offer this possibility. It is important to know that with CFDs you do not actually get the underlying asset (in this case Bitcoin). A CFD is only a contract to settle the price difference between the moment of purchase and the moment of sale. CFDs do offer many additional possibilities. Think of being able to use leverage and being able to make short trades (speculating on price drops). Read more about CFD on Bitcoin .
Why is Bitcoin an interesting investment?
Many investors and traders are very interested in Bitcoin as an investment product. This has a lot to do with the technology behind Bitcoin. After all, the blockchain ensures (peer-to-peer) that the coins are not regulated by a separate body. The interest in a decentralized unregulated currency has been great since the credit crisis of 2008/2009.
In addition, many investors and traders seem to believe in Bitcoin’s vision of the future. This is not entirely surprising, as it is increasingly in the news that large companies are buying Bitcoin and even offering it as a means of payment. A good example of this is Tesla (TSLA).
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