Quick meaning
A shared digital record that stores data in linked blocks, making it very difficult to alter or tamper with.
Think of it like this
Like a public ledger written in permanent ink that thousands of people hold copies of — changing one copy does not change the others.
Where you may see this
You may see this in news stories, AI tools, phone features, and new product marketing.
Why it matters
Understanding the term helps you judge what the technology actually does instead of guessing from jargon.
Say it simply
Blockchain means: A shared digital record that stores data in linked blocks, making it very difficult to alter or tamper with.