Learn how Bitcoin mining works, including how transactions are validated, block rewards, energy use, and why miners play a key role in securing the network.

Bitcoin mining is the process of validating Bitcoin transactions and minting new coins. Since Bitcoin is decentralized, there's no central authority managing transactions or issuing coins, as with ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Betsy began her career in international ...

Key takeawaysBitcoin mining began in 2009 as a hobby-friendly activity where users could earn BTC using CPUs and later GPUs. By 2026, the landscape has shifted entirely to industrial-scale operations ...

Production costs near $80,000 are squeezing miners, forcing shutdowns, asset sales and a pivot to AI Several bitcoin miners are struggling to stay profitable. The U.S. government recently retired the ...