Explain Bitcoin and Blockchain to me like I’m a Kid

Above is my illustration entitled “Crypto, Bitcoin and Blockchain School – Crypto Chain University”, showcasing myself teaching children about what Bitcoin and Blockchain technology is, in a futuristic classroom setting.

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If you still can’t figure out what the heck a bitcoin is, or what is Blockchain technology about, I have attempted to put together a simplified explainer below.

Blockchain is all about fairness and security. It is a big database that lets you record information safely and interact with anyone, without the need to trust them or rely on a big company.

We all interact everyday with one another, mostly on the internet. We chat, we buy things, we use services like banks. But how do we know who to trust online, especially if we’ve never met them but want to deal with them directly? Some companies will check who can be trusted or have reviews of products and sellers. But these businesses can also charge expensive fees. We should be able to deal with each other safely without the need for a “middleman” and pay for it.

All of our information and everything that we do on the internet is stored online by companies whose job it is to guarantee trust. Our names, emails, addresses, the websites we visit, where we go and so much more is recorded somewhere.

But can we really be sure that all of this information about us is definitely safe from hackers or not being used unfairly? Nobody wants a stranger knowing everything about them.

The main problem is that all of this information is stored in one place, on a form of a big computer, which makes it easier to attack and steal information because hackers can target a single spot. Blockchain works differently.

Explain Blockchain Like I’m a Child

Blockchain is decentralized, which means it does not have a central point. All of the information is stored on a lot of different computers, which makes it more difficult to break into a single device or steal information.

Cryptocurrencies, like Bitcoin, founded by Satoshi Nakamoto, are built on blockchain technology. The data that is on to the Bitcoin blockchain is based on who sent bitcoins to who and, based on this, how much bitcoin everyone has.

Blockchain technology is a way of recording information onto lots of different devices all at once through the internet. There are many different blockchains, storing different types of information. You can have a blockchain recording information, recording transactions, recording identities, storing music or agreements between people. Literally any type of information can be recorded onto a blockchain in a better way than we have ever seen until now.

Blockchain gets rid of the problem of being unable to trust anyone because everything that is there is meant to be there. We can be sure of this thanks to computer programs that check everything that is added to a blockchain.

The special thing about blockchain technology is that it can record information and have it confirmed by lots of different devices without there being a risk that any of the devices cheat the system.

The data that is recorded on a blockchain is copied onto many different devices that are connected to each other to form a network. Whenever any new information is added, all of the devices are updated through these computer programs.

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If you look closely, the classroom board has the logo of Crypto Chain University on it.

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Why is it called Blockchain?

Any information that is added to a blockchain is packed into blocks. These blocks link together to form a chain. This is where blockchain gets its name from.

On a blockchain all of the information that is added creates a special code that everyone can see. This is where the idea of a chain comes from, the blocks are linked together by this code. This means that anyone can check to make sure that the information added to a blockchain is correct and is what it should be.

Every time more information is added to the chain, the code changes to show that this has happened. So, if anyone tried to change the data that is already recorded on a blockchain, it would spoil that code and everyone would know about it. Thanks to this all of the information on a blockchain is always true and correct.

This gives us the opportunity to live in a world where we don’t need always need large companies taking our money, just so we can trust one another.

Quick Recap:

      • Blockchain is a public ledger of any type of information.
      • Cryptocurrencies are built on blockchain technology.
      • The information recorded on blockchain is stored in lots of different places at once so it’s always safe, this is called a P2P network.
      • The identity of everyone who uses blockchain is encrypted – hidden behind random numbers and letters, through cryptography.
      • Blockchain is kept honest through special computer programs that reward people who keep it honest, these are known as consensus protocols.
      • The information is always true because of special codes that show if anything is changed when it shouldn’t be, so you can always believe what you are looking at thanks to hashes.
      • Blockchain is special because it means you can deal with anyone without the need for a big company telling you who you can or cannot trust. This allows for a new, trustless world.
      • Blockchain is distributed and decentralised, making it cheaper, faster and more secure than any centralised system.

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    If you look closely, the children were made to resemble the lead actor and actress from trending book and movie series – Harry PotterDaniel Radcliffe and Emma Watson.

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