What Is the Point of a Blockchain?

Imagine you and your friends are keeping score of a game. You all agree on the rules, and no one can change the score without everyone else seeing it. That's like how blockchain works, it keeps track of things in a fair way so nobody can sneakily change them behind others' backs.

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Examples

You and your friends track points in a game using a shared notebook, no one can cheat without everyone seeing it.
Your mom uses a shared list to keep track of chores for the whole family so nobody forgets their tasks.
A class uses a digital board where each student adds their work, and they can't change anything else once they've added theirs.

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Categories: Technology · Blockchain,Cryptocurrency,Distributed Systems