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From beginner to advanced — master exchanges, wallets and blockchain essentials

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There is no single number for how many bitcoins have been sold. You need to separate mined supply, circulating supply, and trading volume.

How many bitcoins have been minted depends on supply rules, not a fixed daily issue. Here’s how issued supply, max supply, and circulation differ.

How many bitcoins have been lost? No one can prove an exact total. The real issue is the gap between inactive coins and coins that are gone for good.

Bitcoin itself hasn’t been “hacked” in the usual sense; losses usually come from exchanges, wallets, phishing, or bad approvals.

Bitcoin itself is hard to hack; exchanges, wallets, and users are the usual targets.

Bitcoin has no official burn mechanism, but some BTC are effectively gone due to lost keys, unspendable addresses, and script mistakes.

Bitcoin becomes money when people use it to store value, settle transfers, and price exchange under shared, verifiable rules.

To buy Bitcoin safely, start with account security, understand withdrawal rules, and learn wallet basics before placing your first order.