In November 2008, someone named Satoshi Nakamoto (or a group of people — no one knows) published a 9-page paper titled "Bitcoin: A Peer-to-Peer Electronic Cash System." On January 3, 2009, the Bitcoin genesis block was mined, containing this message: "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks."
This message was intentionally included — it satirizes how after the 2008 financial crisis, banks' bad debts were bailed out by taxpayers. Bitcoin's original intent was to build a peer-to-peer payment system that requires no banks and no intermediaries.
What Happens When You Send Bitcoin?
Suppose you send 0.01 BTC to a friend. Here's what happens:
- You initiate the transaction using wallet software, signing it with your digital signature (proving "I authorized this").
- This transaction is broadcast to the entire Bitcoin network, waiting to be packaged.
- Miners (or validators) package this transaction along with several thousand others into a new block.
- The new block is appended to the blockchain, and your friend receives 0.01 BTC.
The entire process requires no bank, no Alipay — only requires the Bitcoin network to be running normally.
Why Can't Bitcoin Be "Over-Issued"?
With traditional fiat currency, central banks can print as much as they want. Bitcoin's issuance rules are written in code — no one in the world can change them:
- Total supply cap: 21 million coins
- Halving cycle: approximately every 4 years, mining rewards are halved
- Current block reward: 3.125 BTC (after April 2024 halving)
- Estimated final halving: around 2140
This "code is law" characteristic is the core reason Bitcoin is called "digital gold" — gold has limited supply, and so does Bitcoin, but Bitcoin is easier to divide and transfer than gold.
Is Bitcoin Really "Anonymous"?
No. Bitcoin is pseudo-anonymous. All transactions are recorded on the blockchain, and anyone can look up every incoming and outgoing transaction for any address. If you accidentally link your real identity to an address (e.g., by completing KYC on an exchange and then withdrawing coins to your address), then all your transaction records can be traced.
To truly remain anonymous, you'd need to use privacy-focused coins like Monero (XMR), or use coin mixing services — but the latter is a legal gray area in many countries.
How Can Ordinary People Buy Bitcoin?
The simplest method: go to a reputable exchange (Binance, OKX, Bybit all work), complete identity verification, then use a bank card to buy USDT (a stablecoin pegged 1:1 to the US dollar), and then use USDT to buy BTC.
After buying, if you plan to hold long-term (months or even years), please withdraw to your own wallet. Exchanges are not your bank — if they go bankrupt, your coins are gone. Hundreds of thousands of people learned this lesson during the FTX collapse.