Crypto Glossary
Mining
Using computers to add new transactions to a blockchain and earn newly created coins as a reward.
Definition
Mining is the process that secures networks like Bitcoin. Computers around the world race to solve a hard maths puzzle. The winner gets to add the next block of transactions to the chain and is paid in newly minted coins plus the fees from those transactions.
Mining requires real electricity and specialised hardware, which is why people sometimes talk about Bitcoin's energy use. Networks that use proof of stake do not need mining in this sense.
Related terms
- Proof of WorkA way to secure a blockchain by making computers do a lot of calculation. Used by Bitcoin.
- Hash RateHow much total computing power is securing a proof-of-work network like Bitcoin.
- HalvingAn event where the reward for mining new Bitcoin blocks is cut in half. Happens roughly every four years.
- NodeA computer that helps run a blockchain by storing the ledger and checking new transactions.
Source: What The Block! Dictionary v1.0 (last updated 2026-04-25).