Glossary · Mining Pools
PPLNS
Also: pay per last N shares, pay-per-last-N-shares
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.
Related terms
- 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.
- FPPS
- FPPS (full pay per share) is a payout scheme that pays the PPS rate for the block subsidy plus a proportional share of the average transaction fees earned per block, so miners receive fee revenue without bearing block-finding variance.
- Share
- A share is a hash a miner submits to a pool that meets the pool's own easier target rather than the network's, serving as verifiable proof of the work the miner has done so the pool can measure each miner's contribution.
- Variance
- Variance in mining is the gap between the blocks a miner or pool statistically expects to find and the blocks it actually finds over a period, which pools report as luck and which shrinks as a proportion of income as hashrate and time increase.
Guides that explain PPLNS
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