You cannot mine CELO. Unlike Bitcoin, which can be mined — a term for using high-powered computers to secure the blockchain — the Celo blockchain uses a model called proof of stake. In it, users put up their own CELO as collateral to help secure the blockchain through a process called “staking.” As a reward for staking one’s CELO — and therefore helping secure the Celo blockchain—investors are rewarded with CELO.