# Hash Rate > How much total computing power is securing a proof-of-work network like Bitcoin. Canonical URL: https://fudfomo.co/glossary/hash-rate Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co. ## Definition Hash rate measures how many guesses per second the entire network of mining computers is making in its search for the next block. Higher hash rate means more competition and more security. A falling hash rate can be a sign that mining is no longer profitable for some operators, often after a price drop. A sharp rise can mean new hardware coming online. ## Related terms - [Mining](https://fudfomo.co/glossary/mining): Using computers to add new transactions to a blockchain and earn newly created coins as a reward. - [Proof of Work](https://fudfomo.co/glossary/proof-of-work): A way to secure a blockchain by making computers do a lot of calculation. Used by Bitcoin. - [Bitcoin](https://fudfomo.co/glossary/bitcoin): The first cryptocurrency. A digital money you can send anywhere in the world without a bank, secured by a network of computers. ## See the full catalogue What The Block! covers more than 2,000 plain-English crypto terms, delivered as embeddable hover-state tooltips for crypto exchanges. https://wtb.fudfomo.co