What is Blockchain? (Explained Like You’re 5)

Blockchain for Dummies.
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By: Armar Josh

06/18/2025

Armar Josh

Imagine This:

You and your friends in the village decide to start a small savings group (ekibiina). Every week, you each bring 10,000 UGX and one person keeps the notebook where all contributions and withdrawals are recorded.

But what if that one person:

  1. Loses the book?
  2. Changes numbers secretly?
  3. Disappears?

You’d all lose trust, right?


Now imagine this:

Instead of one notebook, everyone has a copy of the book, and every time someone makes a deposit or withdrawal, all books are updated at the same time.

  1. No one can change the record secretly.
  2. Everyone sees the same thing.
  3. Even if someone loses their copy, the rest still have it.

That’s blockchain.


So, What is a Blockchain?

A blockchain is a digital public record that is:

  1. Shared (many people can see it)
  2. Decentralized (no single owner)
  3. Immutable (you can’t change past entries)

It records transactions, like:

  1. Sending or receiving cryptocurrency (like Bitcoin)
  2. Owning digital assets (like land titles, music, or art)
  3. Even votes, contracts, and much more


Why Is This Important for Africa?

In places like Uganda, Kenya, and Nigeria, we’ve seen:

  1. Banking errors
  2. Land fraud
  3. Fake degrees
  4. Corruption

Blockchain offers a system where:

  1. Records can’t be secretly edited
  2. Power is shared, not held by a few
  3. People don’t need to trust middlemen—they trust the system

It’s not magic.

It’s math + code + transparency.


Is It the Same as Bitcoin?

No—but they’re connected.

  1. Blockchain is the technology
  2. Bitcoin is one use of it

Think of blockchain as the internet, and Bitcoin as email—just one thing it can do.


Real-Life Example in Uganda:

Let’s say the Ministry of Lands used blockchain:

  1. Every land title would be verified publicly.
  2. No officer could secretly change ownership.
  3. Every update would be recorded forever.

You wouldn’t need bribes, brokers, or fights over fake titles. That’s the power of blockchain.


Conclusion: Why You Should Care

Even if you never buy Bitcoin, blockchain is shaping the future of money, ID, voting, education, and business.

It’s not a scam.

It’s a tool.

Like any tool, it can be used wrongly—but when used right, it gives power back to the people.


Did you like the article or learnt something new?

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