🧠 Blockchain 101: Why This Isn't Magic—It's Math

People say "blockchain" and think Bitcoin and wealth. Actually, blockchain is closer to... a transparent ledger.

Imagine this:

• You record a transaction (Ivan sends Maria 1 BTC)

• Thousands of computers verify that Ivan actually has 1 BTC

• When everyone agrees, the transaction enters a "block"

• That block links to the previous block → "chain" = blockchain

• If someone tries to change an old transaction, all blocks after it break → corruption detected!

💡 THE KEY: No single authority (bank, government) can manipulate history because thousands of computers must agree.

🎯 Real-world comparison:

- Traditional bank: You → Bank → Other bank → 2-3 days

- Blockchain: You → Network verifies → ~10 minutes (for Bitcoin)

⚠️ Note:

Blockchain is transparent, but transactions are pseudo-anonymous (you see addresses, but not who's behind them).

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