Given the nature of a community, building several blocks by miners is an extremely difficult task. In general, miners are formally compensated as auditors for this type of work. They are in charge of reviewing historical cryptocurrency transactions. Satoshi Nakamoto, the creator of cryptocurrency, created this standard to ensure the integrity of cryptocurrency users. Miners help to prevent the "double-spending problem" by verifying transactions. When a cryptocurrency owner spends the same cryptocurrency twice, this is known as double spending.

Miners are individuals or entities that use computational power to validate and secure transactions on a blockchain network. In cryptocurrency mining, miners solve complex mathematical problems to add new blocks to the blockchain, ensuring network integrity and security. In return, they receive block rewards and transaction fees as compensation.

Bitcoin mining, for example, relies on the Proof-of-Work (PoW) mechanism, requiring miners to solve cryptographic puzzles using specialized hardware like ASICs (Application-Specific Integrated Circuits). Other cryptocurrencies, such as Ethereum (before its shift to Proof-of-Stake), also used mining to validate transactions.

Mining requires significant electricity and computing power, making it expensive. Large-scale operations, called mining farms, dominate the industry, though some individuals still mine using personal setups.