ELI5 Version

Imagine you have a lemonade stand. You want to keep track of how many cups of lemonade you sell, so you use a notebook to write down each sale.

Blockchain is like a magic notebook that lots of people have a copy of. When you sell a cup of lemonade, you tell all your friends, and they write it down in their notebooks. Then, they tell their friends, and they write it down too. This way, everyone has the same notebook, and it's hard to cheat.

Mining is like solving a puzzle to get a special sticker. When you solve the puzzle, you get to add a new page to the notebook, and you get a reward (like a sticker). This helps keep the notebook safe and makes sure everyone agrees on what's in it.

Nodes are like your friends who help you keep the notebook. They make sure everyone has the same notebook, and they help you solve the puzzle to get the sticker.

Bitcoin is like a special kind of money that you can use to buy things online. It's like the money in your piggy bank, but instead of being made of coins and bills, it's made of computer code.

Satoshi is like a superhero who created the magic notebook and the special money. He wanted to make a way for people to trade with each other without needing a bank or a government to help them.

That's Bitcoin in a nutshell!