How crypto mining works
Mining secures a proof-of-work blockchain and issues new coins. Miners run specialised hardware that races to solve a cryptographic puzzle; the winner adds the next block of transactions and collects the block reward plus fees. The puzzle has no shortcut, so the only way to win more often is to spend more computing power, which is exactly what makes attacking the network too expensive to be worth it.
Worked example
On Bitcoin, miners compete roughly every ten minutes for the current block reward. The network adjusts difficulty so blocks keep arriving at that pace no matter how much hardware joins. As more miners compete, each one needs more power for the same share of rewards, which is why mining economics are a constant race between coin price, electricity cost, and hardware efficiency.
Mining versus trading exposure
Mining is a capital-intensive operation: hardware, power, cooling, and uptime. Most people who want exposure to a coin do not mine it; they buy it. On Volity you take spot or CFD exposure to major coins without running any hardware, and CFDs let you go short, which a miner structurally cannot. Mining is a business; trading is a position.
Why it matters
Mining ties a coin’s security to real-world energy cost, which is the argument for proof-of-work durability and the argument against its energy use. The halving cuts the reward over time, raising the pressure on miner margins. Related: proof of stake, the lower-energy alternative.
Read the full breakdown in our crypto trading guide.
