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Related terms

Mining pool

A mining pool is a service that combines the hashrate of many miners, submits blocks on their behalf and splits the resulting block rewards according to the work each miner contributed, turning rare large payouts into small frequent ones.

Stale share

A stale share is a share submitted after the pool has already moved on to a new block, usually because of network latency, and it earns nothing because it no longer contributes to a block the pool can still find.

PPLNS

PPLNS (pay per last N shares) is a payout scheme that distributes each block the pool actually finds among the shares submitted in a window before that block, so miners bear the pool's luck and a miner who leaves shortly before a block forfeits some of the reward.

PPS

PPS (pay per share) is a pool payout scheme that pays a fixed amount for every accepted share, calculated from the expected value of that share at the current difficulty, so the pool absorbs all the variance and usually charges a higher fee for doing so.

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