- Prop. — Proportional. When a block is found, the reward is distributed among all workers proportionally to how many shares each of them has found.
- PPLNS — Pay Per Last N Shares. Similar to proportional, but instead of looking at the number of shares in the round, instead looks at the last N shares, regardless of round boundaries.
- PPS — Pay Per Share. Each submitted share is worth a certain amount of litecoins. It is risky for pool operators, hence the fee is highest.
- RBPPS — Round-Based Pay Per Share. Like PPS, but payouts are delayed till a block is found and confirmed by the network. If a found block gets orphaned, earnings relative to it are not paid.
- SMPPS — Shared Maximum Pay Per Share. Like PPS, but never pays more than the pool earns.
- RSMPPS — Recent Shared Maximum Pay Per Share. Like SMPPS, but aims to prioritize the most recent miners.
|Название||kHash/s (%)||Тип наград||Комиссия / К. PPS||Запущен||Форум||Сайт||Страна||Сложность||Лайки (+1/Like)|
|OzCoin||15 000 (5.19%)||Prop.||0%/—||2011-10-17||↗||↗1||AU||2-12||0|
|I||Pool-X.eu||35 000||PPLNS||2%/—||2011-10-17||↗||↗||FR||2-15||8 (8/0)|
|sic||P2Pool||10 000||PPLNS||0%/—||2011-11-07||↗||GitHub||P2P||Adaptive||1 (1/0)|
|Ecki Co LTD||2 000||PPLNS||1%/—||2011-11-21||↗||↗2||TH, DE||2-14||1 (0/1)|
|burnside's Pool||24 000||PPLNS||0%/—||2012-07-15||↗||↗||US||2-12||0|
|litecoinpool.org||30 000||PPS||—/5%||2011-11-05||↗||↗||UK||Adaptive||1 (1/0)|
|Xurious's Pool||12 000||PPS||—/3%||2012-07-25||↗||↗||US||2-12||0|
|Coinotron||15 000||RBPPS||—/2%||2011-10-20||↗||↗||PL||2-15||1 (1/0)|
There is no "normal" or "standard" or "base" difficulty for Litecoin pools. Difficulty is measured in the same way as Bitcoin difficulty, but since the hashing algorithm used by Litecoin is much more complex (and therefore slower), pools need to use a share difficulty lower than 1.
In the first months after the launch of Litecoin, most pools used a share difficulty of 2-16 or 2-15. They could have used even lower values, but there was no point in doing that. After GPU mining became widespread, most pools moved to higher difficulties, such as 2-12. The reason behind this was to decrease bandwidth usage, as a higher share difficulty results in fewer shares being submitted. While this change doesn't affect mining rewards, there is a minor downside, and that's that the precision of speed estimates gets drastically reduced.
For this reason, slower miners may prefer pools with a lower share difficulty, so that they can get more precise statistics on their workers. To overcome this problem, some pools implement adaptive solutions that serve work units with variable difficulty depending on the speed of each miner.
- GitHub / Litecoin / Comparison of mining pools