Technology · Beginner lesson · about 2 minutes
Mining
How proof-of-work networks compete to order transactions.
The short answer
Miners use computing work and energy to propose blocks. Nodes independently verify that the block follows the network’s rules; miners do not get to rewrite the rules by themselves.
In plain English
Miners use computing work and energy to propose blocks. Nodes independently verify that the block follows the network’s rules; miners do not get to rewrite the rules by themselves.
The details differ by network and service, so use the linked sources and the project’s own documentation when a decision depends on current behavior.
What can go wrong
Read this before you act.
Mining economics change with hardware, energy, fees, market price, and competition. Mining is not a guaranteed return.
Check your understanding
A few questions. Not a test.
Pick an answer to see why it's right or wrong. There's no score to unlock.
Sources and corrections
This lesson is a starting point. The two sites below are good general places to learn more. Please tell us if something needs fixing.