Bitcoin hub
Bitcoin, explained from the ground up
What Bitcoin is, how new coins are created, why the supply is capped at 21 million, and how to buy and hold it without making expensive mistakes.
In this hub
- What Bitcoin actually is
- Mining and proof of work
- The halving cycle
- Buying Bitcoin safely
- Storing your sats
- Reading on-chain data
Overview
Bitcoin in a nutshell
Crypto is easier to learn when you take it in the right order. Many beginners buy first and learn later, which is how avoidable mistakes happen — sending coins on the wrong network, leaving everything on an exchange, or falling for a too-good-to-be-true yield.
This hub is our structured starting point. It begins with what blockchains, coins and tokens actually are, then covers choosing a reputable exchange, making a small first purchase, and moving it to a wallet you control. Once those foundations are in place, you can explore staking, trading and DeFi with a clear picture of the risks involved.
What you'll learn
Key topics in Bitcoin
What Bitcoin actually is
A peer-to-peer payment network and a scarce digital asset — and why both matter.
Mining and proof of work
How miners secure the network and why blocks arrive roughly every ten minutes.
The halving cycle
Every 210,000 blocks the new-coin reward halves. What that does to supply over time.
Buying Bitcoin safely
Exchanges, fees, and why you can buy a small fraction of one coin.
Storing your sats
Custodial vs self-custody, hardware wallets and backup strategies.
Reading on-chain data
Addresses, transactions and fees — what a block explorer can tell you.
Latest guides
New in Bitcoin
FAQ
Bitcoin questions, answered
How many bitcoins will ever exist?
The protocol caps total supply at 21 million BTC. New coins are issued as block rewards that halve roughly every four years, so the last fractions are expected to be mined around the year 2140.
Do I need to buy a whole bitcoin?
No. One bitcoin divides into 100 million units called satoshis (sats), and most exchanges let you buy small amounts.
What is the Bitcoin halving?
Every 210,000 blocks, the reward miners receive for a new block is cut in half. It reduces the rate of new supply and is built into Bitcoin’s code.
Is Bitcoin anonymous?
Not really. Bitcoin is pseudonymous: every transaction is public on the blockchain, and addresses can often be linked to real identities through exchanges and analysis tools.
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