Mining: How Bitcoin Is Secured

We understand what mining is and why it makes the network strong and secure.

Mining is the process by which new transactions are added to Bitcoin's record. Specialized computers compete to solve complex calculations that require real energy.

This energy isn't waste — it's what makes tampering with the record so costly that it becomes practically impossible. Changing the past would mean redoing an enormous amount of work.

Whoever verifies successfully receives a reward in Bitcoin. That's how new coins enter circulation — at a fixed, known-in-advance pace.

The energy spent on mining is the wall that protects everyone's money. Security here isn't a promise; it's a real cost.

In the next station, we turn to privacy and what it really means in Bitcoin.