Not financial or investment advice. This article explains fundamentals. It makes no prediction about the price of Bitcoin and is not a recommendation to buy or sell.
Many people first encounter Bitcoin as a price in the news. Yet the price is the least interesting thing about it. To understand Bitcoin, it is better to start with a simple question: what exactly is it – and what is it not?
Digital ownership without an intermediary
Bitcoin is a digital asset that can be owned and transferred without a bank, a company or a state standing in between. Sending Bitcoin to someone requires no permission and no account with a provider. The transfer is checked and recorded by a worldwide network of computers.
A comparison helps. When you make a bank transfer, your bank keeps an account for you and changes a number in its database. With Bitcoin, there is no such central database. Instead, thousands of independent computers keep the same public list of all transfers – and each one checks every entry for itself.
What defines Bitcoin
- Limited supply. There will never be more than just under 21 million Bitcoin. This limit is written into the rules of the network and is checked by every participant.
- Fixed, public rules. How new Bitcoin are created and when a transfer is valid can be read by anyone and verified with their own software.
- No issuer. There is no company, no board and no central bank behind Bitcoin. No one can change the rules on their own.
- Divisible. One Bitcoin can be divided into 100 million units, known as “satoshis”. So there is no need to own a whole Bitcoin.
- Transferable worldwide. A transfer works across borders, at any time of day, regardless of who is sending and who is receiving.
What Bitcoin is not
- Not a share. Owning Bitcoin does not give you a stake in a company, and you receive no dividend.
- Not an account. Bitcoin is not held “with” anyone. There is no helpline that can reverse a mistake.
- Not a guarantee. The price fluctuates considerably, and no one underwrites it.
- Not anonymous. All transfers are publicly visible. Names do not appear, but traces can often be attributed.
The key point: whoever has the keys has the Bitcoin
Bitcoin belongs to whoever holds the matching digital key. This key is used to sign a transfer. Without it, nothing can be moved – not even by the rightful owner.
There are therefore two ways to hold Bitcoin:
- With a provider, such as an exchange. The provider then holds the keys, and you have a claim against it – similar to a bank balance, only without deposit protection.
- In self-custody. You then hold the keys yourself, usually on a small device known as a hardware wallet. You are independent – but you also bear full responsibility.
This is what decides whether Bitcoin becomes a secure asset for a family or a risk: are the keys protected? Can someone restore them if a device is lost? Do relatives know what to do if the worst happens?
Bitcoin replaces trust in intermediaries. Responsibility for the keys does not disappear as a result – it now rests with you.
In this series
“Understanding Bitcoin” explains the fundamentals in five parts: what Bitcoin is, how it began, how it works, the facts about its energy use, and its strengths and open questions. Without jargon and without a sales pitch.
Your next step
If you hold Bitcoin, you are responsible for the keys. Find out how well prepared your Bitcoin and your family are – talk to us →
Not financial or investment advice. This article is purely explanatory. It contains no forecast and no recommendation to buy, hold or sell Bitcoin. 21 Fruits does not hold Bitcoin and receives no commissions. Please base any decisions on your own judgement.