Blockchain technology is like a digital notebook that keeps a record of all transactions safely and openly across a bunch of computers. Instead of just one person or company being in charge, this notebook is shared across many computers, making it really hard for anyone to mess with the information.
Imagine every time someone makes a transaction, like sending digital money or signing a digital contract, it gets written down in a new page (block) in the notebook. When the page is full, it gets glued to the previous pages, creating a chain of all the transactions ever made (hence “blockchain”).
Once something is written in this digital notebook, it can’t be erased or changed, making everything super transparent and trustworthy. This is why people are excited about using blockchain for more than just digital money—it could help make all kinds of transactions more secure and fair for everyone.