What is a blockchain?
A blockchain is a digital record-keeping system where information is stored in blocks and linked together like a chain.
Another word you could use is “ledger.”
Imagine a notebook where every page represents a block, and once you write on a page (or block), you can’t change it. To keep adding new information, you start writing on the next page, and all pages are connected. Now, picture that everyone in the group has the same notebook, and when you write something, they all update their pages too. This makes it hard for anyone to cheat or change the information because everyone has the same record.
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