A mining pool is a group of miners who combine hash power, share work, and split block rewards. Solo mining can mean weeks without a payout. Pools pay smaller, steadier amounts based on contributed shares. The pool server assigns work and records who found the winning hash.
Pools lower the cash-flow barrier. Solo mining needs hardware, electricity, and patience. For the network, pooled hash still counts toward total hash rate, which raises the cost of a 51% attack. The tradeoff is concentration. If one pool is too large, it could reorder or censor. Most communities watch pool share for that reason.
A mining pool is a cooperative arrangement where individual cryptocurrency miners combine computing power to increase the chance of solving a block and earning the reward. Instead of each miner working alone and waiting weeks or months for a payout, participants share work and split rewards proportionally. Pools share block rewards by hashrate. That smooths income.
It also concentrates who decides which transactions go in a block.
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