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Understanding Bitcoin: Why 21 Million Exists, How Mining Secures It & What Really Gives BTC Value

Understanding Bitcoin from first principles. In this episode of Digital Duniya, we break down what Bitcoin is, why there will only ever be 21 million BTC, how mining and halvings work, and why self‑custody matters more than price predictions.

You’ll learn how the Bitcoin network processes transactions, what miners actually do, how rewards are distributed, and why the system became more complex from 2009 laptops to today’s industrial mining warehouses. We also unpack the difference between buying Bitcoin on exchanges like Binance, CoinSpot or CoinSwitch versus holding it in your own wallet, and what that means for real ownership and freedom.

If you’re confused about “what gives Bitcoin value”, “who verifies my transaction”, or “can I mine Bitcoin myself in 2025”, this conversation is designed as a clear, story‑driven explainer for beginners and curious investors. By the end, you’ll understand Bitcoin as a transparent, automated ledger rather than just a speculative trade.

🔔 Subscribe to Digital Duniya for the full “Understanding Series”:

Part 1 – Understanding Bitcoin (this episode)

Part 2 – Understanding Ethereum

Part 3 – Understanding DeFi

👇 Timestamps & chapters below. Share this with a friend who still thinks Bitcoin is only about “price going up”.

Chapters

00:00 – Intro: Why this “Understanding Bitcoin” series exists
02:10 – What is Bitcoin really? Network, ledger and transactions explained
06:45 – 21 million BTC: scarcity, supply schedule and inflation vs fiat
12:30 – How Bitcoin mining works in simple language
18:05 – Who validates your transaction and why miners get rewards
24:20 – From 2009 laptops to 2025 mining warehouses: difficulty & hardware
30:10 – Buying Bitcoin on exchanges vs using the Bitcoin network
36:00 – Custodial vs self‑custody wallets: who actually controls your BTC
42:15 – Satoshis, small buyers and common beginner confusions
48:40 – Why Bitcoin matters beyond price: trust, security and freedom



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⚠️ Disclaimer:
This video is for **educational and informational purposes only**.
It is **not financial advice (NFA)**, investment advice, or a solicitation to buy or sell any asset.
Always do your own research and consult a licensed financial professional before making investment decisions.



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