Bitcoin Wiki - User contributions [en]

Comparison of mining pools

2011-12-12T23:23:10Z

Tokoin: Moved PPS fee to correct column

Reward types & explanation:
* '''PPS''' - Pay Per Share. Each submitted share is worth certain amount of BC. Since finding a block requires <current difficulty> shares ''on average'', a PPS method with 0% fee would be 50 BTC divided by <current difficulty>. It is risky for pool operators, hence the fee is highest.
* '''SMPPS''' - Shared Maximum Pay Per Share. Like Pay Per Share, but never pays more than the pool earns. [http://.st/wiki/index.php/Shared_Maximum_PPS]
* '''ESMPPS''' - Equalized Shared Maximum Pay Per Share. Like SMPPS, but equalizes payments fairly among all those who are owed. [http://forum.bitcoin.org/index.php?topic=12181.msg378851#msg378851]
* '''CPPSRB''' - Capped Pay Per Share with Recent Backpay.
* '''Prop.''' - Proportional. When block is found, the reward is distributed among all workers proportionally to how much 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.
* '''Score''' - Score based system: a proportional reward, but weighed by time submitted. Each submitted share is worth more in the function of time ''t'' since start of current round. For each share score is updated by: score += exp(t/C). This makes later shares worth much more than earlier shares, thus the miner's score quickly diminishes when they stop mining on the pool. Rewards are calculated proportionally to scores (and not to shares). (at slush's pool C=300 seconds, and every hour scores are normalized)
[http://eligius.st/~luke-jr/samples/800MH-3/ Visual examples of the various payout methods]

{| class="wikitable sortable"
|-
! Name !! Location !! GH/s<ref name="hashrate2">Note that pool hashrate is largely irrelevant but can be seen as a popularity measurement. Note however that it is a theoretical security issue if one pool gains above 50% of the total computational power of the network, thus consider joining a pool based on other metrics.</ref> !! Merged Mining<ref name="merged">Merged mining allows miners to mine on multiple [[block chains]] at the same time with the same hashing.</ref> !! Reward Type !! Transaction fees !! Fee PPS !! Fee Prop / Score !! Protocol !! Launched !! Forum !! Website
|-
| [[21bitcoin|21bitcoin]] || CN, HK || 2 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-06-20 || [https://bitcointalk.org/index.php?topic=33586.0 Link] || [http://21bitcoin.com/pool/ Link]
|-
| [[ABCPool.co|ABCPool.co]] || USA || 290 || ? || PPS<ref name="stales">ABCPool also rewards stale shares</ref> || kept by pool || 0%<ref name="donations">Donations are possible</ref> || || RPC+LP || 2011-08-02 || [http://bitcointalk.org/index.php?topic=33586.0 Link] || [http://www.ABCPool.co/ Link]
|-
| [[ArsBitcoin|ArsBitcoin]] || USA || 946 || No || SMPPS || kept by pool || 0%<ref name="donations">Donations are possible</ref> || || RPC+LP || 2011-06-15 || [http://forum.bitcoin.org/index.php?topic=18567.0 Link] || [https://arsbitcoin.com/ Link]
|-
| [[Bitcash.cz|Bitcash.cz]] || Czech Republic || 10 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-07-21 || [http://bitcash.cz/forum/ Link] ||
[http://bitcash.cz/pool/ Link]
|-
| [[Bitcoin-Station|Bitcoin-Station]] || Germany || 5 || ? || Prop. || kept by pool || || 2% || RPC+LP || 2011-09-11 || || [https://bitcoin-station.com/ Link]
|-
| [[BtcPool.ru|BtcPool.ru]] || Russia || 1 || ? || ? || kept by pool || || 0% || RPC+LP || 2011-08-31 || [http://bitcointalk.org/index.php?topic=43660 Link] || [http://btcpool.ru/ Link]
|-

| [[Betcoin.co_Pool|Betcoin.co Pool]] || USA || 5.9 || ? || PPLNS || kept by pool || || 0% || RPC+LP || 2011-07-07 || [http://forum.bitcoin.org/index.php?topic=26439.0 Link] || [http://pool.betcoin.co/ Link]
|-
| [[Bitarama|Bitarama.com]] || USA || 0.021 || ? || Prop || kept by pool || || || RPC+LP || 2011-08-02 || || [http://www.bitarama.com/ Link]
|-
| [[Bitclockers|BitClockers]] || USA, EU || 241 || ? || Prop. || kept by pool || || 2% || RPC+LP || 2011-05-27 || [http://forum.bitcoin.org/index.php?topic=10127.0 Link] || [http://bitclockers.com/ Link]
|-
| [[Bitcoin_Pool|Bitcoin Mining Pool]] || USA || 196 || ? || Prop. || kept by pool || || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || Unknown || [http://bitcoinpool.com/forum/ Link] || [http://www.bitcoinpool.com/ Link]
|-
| [[Bitcoin_Pooled_Mining|Bitcoin Pooled Mining (Slush)]] || EU/London || 1290 || [[NMC]] || Score || kept by pool || || 2% || RPC+LP || 2010-11-27 || [http://forum.bitcoin.org/index.php?topic=1976.0 Link] || [http://mining.bitcoin.cz/ Link]
|-
| [[Bitcoinitalia]] || Italy || 0.45 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-07-12 || [http://forum.bitcoin.org/index.php?topic=26634.0 Link] || [http://www.btcfarm.us/ Link]
|-
| [[Bitcoins.lc]] || EU || 221 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-05-27 || [http://forum.bitcoin.org/index.php?topic=10121.0 Link] || [http://www.bitcoins.lc/ Link]
|-
| [[BitLotto Pool]] || Los Angeles || 0.4 || ? || Prop || kept by pool || || || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=13794.0 Link] || [http://www.bitlottopool.com/ Link]
|-
| [[BitMinter]] || USA || 65 || [[NMC]] || PPLNS || shared || || 0% || RPC+LP || 2011-06-18 || [https://bitcointalk.org/index.php?topic=27062.0 Link] || [https://bitminter.com Link]
|-
| [[Bitp.it]] || USA || 20 || ? || ESMPPS || kept by pool || || 0% || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=12181.0 Link] || [https://pool.bitp.it Link]
|-
| [[BitPenny]] || USA || 10 || No || CPPSRB || 97% shared || 3% || || Proprietary<ref name="local">Proprietary-protocol pools (BitPenny and p2pool) provide JSON-RPC to miners locally.</ref> || 2011-02-08 || [https://bitcointalk.org/index.php?topic=36371.0 Link] || [http://bitpenny.com/ Link]
|-
| [[BTC Guild]] || USA, EU || 1109 || No || PPS || kept by pool || 5% || || RPC+LP || 2011-05-09 || [http://forum.bitcoin.org/index.php?topic=7760.0 Link] || [http://www.btcguild.com/ Link]
|-
| [[BTCMine]] || UK || 152 || ? || Score || kept by pool || || 2% || RPC+LP || 2011-03-11 || [http://forum.bitcoin.org/index.php?topic=4251.0 Link] || [http://www.btcmine.com/ Link]
|-
| [[btcmp.com]] || Germany || 40 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-06-28 || || [http://www.btcmp.com/ Link]
|-
| [[Btcserv|BTCServ]] || Germany || 30 || Converted to BC || PPS || kept by pool || 0% || || RPC+LP || 2011-07-09 || [http://forum.bitcoin.org/index.php?topic=27101.0 Link] || [http://btcserv.net/ Link]
|-
| [[Btcworld.de]] || Germany || 2.5 || ? || Prop || kept by pool || || ? || RPC+LP || 2011-06-18 || || [http://btcworld.de/ Link]
|-
| [http://chwpool.kr105.com/ CHWpool] || Chile || 0 || ? || Prop || kept by pool || || 1% || RPC+LP || 2011-06-30 || || [http://chwpool.kr105.com/ Link]
|-
| [[Coinotron|Coinotron]] || Poland || 33 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-07-06 || [http://forum.bitcoin.org/index.php?topic=26727.0 Link] || [http://www.coinotron.com Link]
|-
| [[DeepBit]] || Germany || 3215 || No || PPS / Prop. || kept by pool || 10% || 3% || RPC+LP || 2011-02-26 || [http://forum.bitcoin.org/index.php?topic=3889.0 Link] || [http://deepbit.net/ Link]
|-
| [[Eclipse Mining Consortium]] || USA / Europe / AU / Asia || 90 || [[NMC]] || Double Geo || kept by pool || || 0% || RPC+LP || 2011-06-14 || [http://forum.bitcoin.org/index.php?topic=16385.0 Link] || [https://eclipsemc.com Link]
|-
| [[Eligius]] || Germany || 405  || [[NMC]] || SMPPS || kept by pool || 0.000001%<ref name="donations">Donations are possible</ref> || || RPC+LP, Binary || 2011-04-27 || [https://bitcointalk.org/index.php?topic=6667.0 Link] || [http://eligius.st Link]
|-
| [[MasterPool]] || Germany || 20 || [[NMC]] || PPLNS || shared || || 1 or 2%<ref name="payoutfee">Fee is a payout fee. Instant payout: 2%. Scheduled payout (each night): 1%</ref> || RPC+LP || 2011-07-18 || [https://bitcointalk.org/index.php?topic=42667.0 Link] || [https://www.masterpool.eu Link]
|-
| [[Mineco.in]] || UK || 94 || ? || PPLNS || shared || || 0% || RPC+LP || 2011-06-15 || [http://forum.bitcoin.org/index.php?topic=17310.0 Link] || [https://mineco.in/ Link]
|-
| [[Mining Team Reddit (MtRed)]] || USA, EU || 99 || [[NMC]] || PPS || kept by pool || 7% || || RPC+LP || 2011-05-25 || [http://forum.bitcoin.org/index.php?topic=15929.0 1] [http://reddit.com/r/mtred/ 2] || [http://www.mtred.com/ Link]
|-
| [[NoFeeMining]] || USA || 48 || ? || RSMPPS || shared || || 0% || RPC+LP || 2011-06-17 || [http://forum.bitcoin.org/index.php?topic=18301.0 Link] || [http://nofeemining.appspot.com/ Link]
|-
| [[Ozco.in]] || AUS || 69 || No || Prop || kept by pool || || 0% || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=14085.0/ Link] || [http://www.ozco.in Link]
|-
| [[P2Pool]] || Earth (P2P) || 25 || No || PPLNS || shared || || 0% || Proprietary<ref name="local"/> || 2011-06-17 || [http://forum.bitcoin.org/index.php?topic=18313.0 Link] || [https://en.bitcoin.it/wiki/P2Pool Link]
|-
| [[PolMine]] || Poland || 96 || ? || PPS || shared || 0% || || RPC || 2011-06-13 || [http://forum.polmine.pl/ Link] || [https://polmine.pl/ Link]
|-
| [[rfcpool]] || UK, EU || 60 || No || PPLNS || shared || 0%<ref name="donations">Donations are possible</ref> || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || 2011-07-05 || [http://forum.bitcoin.org/index.php?topic=26164.0/ Link] || [https://www.rfcpool.com Link]
|-
| [[Simplecoin|Simplecoin.us]] || US || 70 || [[NMC]] || SMPPS / PPLNS / Prop || kept by pool || 0%<ref name="donations">Donations are possible</ref> || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || 2011-06-02 || [http://forum.bitcoin.org/index.php?topic=11186.0 Link] || [http://simplecoin.us/ Link]
|-
| [[Triplemining]] || Europe || 20.6 || ? || PPLNS || kept by pool || || 1% <ref name="jackpot">Triplemining's 1% fee is redistributed using a weekly jackpot</ref> || RPC+LP || 2011-06-28 || [http://forum.bitcoin.org/index.php?topic=23664.0 Link] || [http://tinyurl.com/triplemining Link]
|-
| [[UnitedMiners]] || US || 2 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-06-28 || [http://forum.bitcoin.org/index.php?topic=23664.0 Link] || [http://www.unitedminers.com Link]
|-
| [[yourbtc.net]] || Germany || 300 || [[NMC]] || DGM || shared || || 0% || RPC+LP || 2011-09-10 || [http://bitcointalk.org/index.php?topic=42631.0 Link] || [http://yourbtc.net/ Link]
|-
| [[pool.mkalinin.ru]] || Russia || 16 || No || PPLNS || kept by pool || || 0% || RPC+LP || 2011-07-20 || [https://bitcointalk.org/index.php?topic=30703.0 Link] || [http://pool.mkalinin.ru/ Link]
|}

<references/>

== See also ==
*[[Pooled mining]]
*[http://bcx.me/ Bitcoin Mining Pool Tracker]

[[Category:Mining]]

Comparison of mining pools

2011-12-12T23:21:04Z

Tokoin: Calculated fee for mtred.com PPS payouts

Reward types & explanation:
* '''PPS''' - Pay Per Share. Each submitted share is worth certain amount of BC. Since finding a block requires <current difficulty> shares ''on average'', a PPS method with 0% fee would be 50 BTC divided by <current difficulty>. It is risky for pool operators, hence the fee is highest.
* '''SMPPS''' - Shared Maximum Pay Per Share. Like Pay Per Share, but never pays more than the pool earns. [http://.st/wiki/index.php/Shared_Maximum_PPS]
* '''ESMPPS''' - Equalized Shared Maximum Pay Per Share. Like SMPPS, but equalizes payments fairly among all those who are owed. [http://forum.bitcoin.org/index.php?topic=12181.msg378851#msg378851]
* '''CPPSRB''' - Capped Pay Per Share with Recent Backpay.
* '''Prop.''' - Proportional. When block is found, the reward is distributed among all workers proportionally to how much 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.
* '''Score''' - Score based system: a proportional reward, but weighed by time submitted. Each submitted share is worth more in the function of time ''t'' since start of current round. For each share score is updated by: score += exp(t/C). This makes later shares worth much more than earlier shares, thus the miner's score quickly diminishes when they stop mining on the pool. Rewards are calculated proportionally to scores (and not to shares). (at slush's pool C=300 seconds, and every hour scores are normalized)
[http://eligius.st/~luke-jr/samples/800MH-3/ Visual examples of the various payout methods]

{| class="wikitable sortable"
|-
! Name !! Location !! GH/s<ref name="hashrate2">Note that pool hashrate is largely irrelevant but can be seen as a popularity measurement. Note however that it is a theoretical security issue if one pool gains above 50% of the total computational power of the network, thus consider joining a pool based on other metrics.</ref> !! Merged Mining<ref name="merged">Merged mining allows miners to mine on multiple [[block chains]] at the same time with the same hashing.</ref> !! Reward Type !! Transaction fees !! Fee PPS !! Fee Prop / Score !! Protocol !! Launched !! Forum !! Website
|-
| [[21bitcoin|21bitcoin]] || CN, HK || 2 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-06-20 || [https://bitcointalk.org/index.php?topic=33586.0 Link] || [http://21bitcoin.com/pool/ Link]
|-
| [[ABCPool.co|ABCPool.co]] || USA || 290 || ? || PPS<ref name="stales">ABCPool also rewards stale shares</ref> || kept by pool || 0%<ref name="donations">Donations are possible</ref> || || RPC+LP || 2011-08-02 || [http://bitcointalk.org/index.php?topic=33586.0 Link] || [http://www.ABCPool.co/ Link]
|-
| [[ArsBitcoin|ArsBitcoin]] || USA || 946 || No || SMPPS || kept by pool || 0%<ref name="donations">Donations are possible</ref> || || RPC+LP || 2011-06-15 || [http://forum.bitcoin.org/index.php?topic=18567.0 Link] || [https://arsbitcoin.com/ Link]
|-
| [[Bitcash.cz|Bitcash.cz]] || Czech Republic || 10 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-07-21 || [http://bitcash.cz/forum/ Link] ||
[http://bitcash.cz/pool/ Link]
|-
| [[Bitcoin-Station|Bitcoin-Station]] || Germany || 5 || ? || Prop. || kept by pool || || 2% || RPC+LP || 2011-09-11 || || [https://bitcoin-station.com/ Link]
|-
| [[BtcPool.ru|BtcPool.ru]] || Russia || 1 || ? || ? || kept by pool || || 0% || RPC+LP || 2011-08-31 || [http://bitcointalk.org/index.php?topic=43660 Link] || [http://btcpool.ru/ Link]
|-

| [[Betcoin.co_Pool|Betcoin.co Pool]] || USA || 5.9 || ? || PPLNS || kept by pool || || 0% || RPC+LP || 2011-07-07 || [http://forum.bitcoin.org/index.php?topic=26439.0 Link] || [http://pool.betcoin.co/ Link]
|-
| [[Bitarama|Bitarama.com]] || USA || 0.021 || ? || Prop || kept by pool || || || RPC+LP || 2011-08-02 || || [http://www.bitarama.com/ Link]
|-
| [[Bitclockers|BitClockers]] || USA, EU || 241 || ? || Prop. || kept by pool || || 2% || RPC+LP || 2011-05-27 || [http://forum.bitcoin.org/index.php?topic=10127.0 Link] || [http://bitclockers.com/ Link]
|-
| [[Bitcoin_Pool|Bitcoin Mining Pool]] || USA || 196 || ? || Prop. || kept by pool || || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || Unknown || [http://bitcoinpool.com/forum/ Link] || [http://www.bitcoinpool.com/ Link]
|-
| [[Bitcoin_Pooled_Mining|Bitcoin Pooled Mining (Slush)]] || EU/London || 1290 || [[NMC]] || Score || kept by pool || || 2% || RPC+LP || 2010-11-27 || [http://forum.bitcoin.org/index.php?topic=1976.0 Link] || [http://mining.bitcoin.cz/ Link]
|-
| [[Bitcoinitalia]] || Italy || 0.45 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-07-12 || [http://forum.bitcoin.org/index.php?topic=26634.0 Link] || [http://www.btcfarm.us/ Link]
|-
| [[Bitcoins.lc]] || EU || 221 || ? || Prop. || kept by pool || || 0% || RPC+LP || 2011-05-27 || [http://forum.bitcoin.org/index.php?topic=10121.0 Link] || [http://www.bitcoins.lc/ Link]
|-
| [[BitLotto Pool]] || Los Angeles || 0.4 || ? || Prop || kept by pool || || || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=13794.0 Link] || [http://www.bitlottopool.com/ Link]
|-
| [[BitMinter]] || USA || 65 || [[NMC]] || PPLNS || shared || || 0% || RPC+LP || 2011-06-18 || [https://bitcointalk.org/index.php?topic=27062.0 Link] || [https://bitminter.com Link]
|-
| [[Bitp.it]] || USA || 20 || ? || ESMPPS || kept by pool || || 0% || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=12181.0 Link] || [https://pool.bitp.it Link]
|-
| [[BitPenny]] || USA || 10 || No || CPPSRB || 97% shared || 3% || || Proprietary<ref name="local">Proprietary-protocol pools (BitPenny and p2pool) provide JSON-RPC to miners locally.</ref> || 2011-02-08 || [https://bitcointalk.org/index.php?topic=36371.0 Link] || [http://bitpenny.com/ Link]
|-
| [[BTC Guild]] || USA, EU || 1109 || No || PPS || kept by pool || 5% || || RPC+LP || 2011-05-09 || [http://forum.bitcoin.org/index.php?topic=7760.0 Link] || [http://www.btcguild.com/ Link]
|-
| [[BTCMine]] || UK || 152 || ? || Score || kept by pool || || 2% || RPC+LP || 2011-03-11 || [http://forum.bitcoin.org/index.php?topic=4251.0 Link] || [http://www.btcmine.com/ Link]
|-
| [[btcmp.com]] || Germany || 40 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-06-28 || || [http://www.btcmp.com/ Link]
|-
| [[Btcserv|BTCServ]] || Germany || 30 || Converted to BC || PPS || kept by pool || 0% || || RPC+LP || 2011-07-09 || [http://forum.bitcoin.org/index.php?topic=27101.0 Link] || [http://btcserv.net/ Link]
|-
| [[Btcworld.de]] || Germany || 2.5 || ? || Prop || kept by pool || || ? || RPC+LP || 2011-06-18 || || [http://btcworld.de/ Link]
|-
| [http://chwpool.kr105.com/ CHWpool] || Chile || 0 || ? || Prop || kept by pool || || 1% || RPC+LP || 2011-06-30 || || [http://chwpool.kr105.com/ Link]
|-
| [[Coinotron|Coinotron]] || Poland || 33 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-07-06 || [http://forum.bitcoin.org/index.php?topic=26727.0 Link] || [http://www.coinotron.com Link]
|-
| [[DeepBit]] || Germany || 3215 || No || PPS / Prop. || kept by pool || 10% || 3% || RPC+LP || 2011-02-26 || [http://forum.bitcoin.org/index.php?topic=3889.0 Link] || [http://deepbit.net/ Link]
|-
| [[Eclipse Mining Consortium]] || USA / Europe / AU / Asia || 90 || [[NMC]] || Double Geo || kept by pool || || 0% || RPC+LP || 2011-06-14 || [http://forum.bitcoin.org/index.php?topic=16385.0 Link] || [https://eclipsemc.com Link]
|-
| [[Eligius]] || Germany || 405  || [[NMC]] || SMPPS || kept by pool || 0.000001%<ref name="donations">Donations are possible</ref> || || RPC+LP, Binary || 2011-04-27 || [https://bitcointalk.org/index.php?topic=6667.0 Link] || [http://eligius.st Link]
|-
| [[MasterPool]] || Germany || 20 || [[NMC]] || PPLNS || shared || || 1 or 2%<ref name="payoutfee">Fee is a payout fee. Instant payout: 2%. Scheduled payout (each night): 1%</ref> || RPC+LP || 2011-07-18 || [https://bitcointalk.org/index.php?topic=42667.0 Link] || [https://www.masterpool.eu Link]
|-
| [[Mineco.in]] || UK || 94 || ? || PPLNS || shared || || 0% || RPC+LP || 2011-06-15 || [http://forum.bitcoin.org/index.php?topic=17310.0 Link] || [https://mineco.in/ Link]
|-
| [[Mining Team Reddit (MtRed)]] || USA, EU || 99 || [[NMC]] || PPS || kept by pool || || 7% || RPC+LP || 2011-05-25 || [http://forum.bitcoin.org/index.php?topic=15929.0 1] [http://reddit.com/r/mtred/ 2] || [http://www.mtred.com/ Link]
|-
| [[NoFeeMining]] || USA || 48 || ? || RSMPPS || shared || || 0% || RPC+LP || 2011-06-17 || [http://forum.bitcoin.org/index.php?topic=18301.0 Link] || [http://nofeemining.appspot.com/ Link]
|-
| [[Ozco.in]] || AUS || 69 || No || Prop || kept by pool || || 0% || RPC+LP || 2011-06-08 || [http://forum.bitcoin.org/index.php?topic=14085.0/ Link] || [http://www.ozco.in Link]
|-
| [[P2Pool]] || Earth (P2P) || 25 || No || PPLNS || shared || || 0% || Proprietary<ref name="local"/> || 2011-06-17 || [http://forum.bitcoin.org/index.php?topic=18313.0 Link] || [https://en.bitcoin.it/wiki/P2Pool Link]
|-
| [[PolMine]] || Poland || 96 || ? || PPS || shared || 0% || || RPC || 2011-06-13 || [http://forum.polmine.pl/ Link] || [https://polmine.pl/ Link]
|-
| [[rfcpool]] || UK, EU || 60 || No || PPLNS || shared || 0%<ref name="donations">Donations are possible</ref> || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || 2011-07-05 || [http://forum.bitcoin.org/index.php?topic=26164.0/ Link] || [https://www.rfcpool.com Link]
|-
| [[Simplecoin|Simplecoin.us]] || US || 70 || [[NMC]] || SMPPS / PPLNS / Prop || kept by pool || 0%<ref name="donations">Donations are possible</ref> || 0%<ref name="donations">Donations are possible</ref> || RPC+LP || 2011-06-02 || [http://forum.bitcoin.org/index.php?topic=11186.0 Link] || [http://simplecoin.us/ Link]
|-
| [[Triplemining]] || Europe || 20.6 || ? || PPLNS || kept by pool || || 1% <ref name="jackpot">Triplemining's 1% fee is redistributed using a weekly jackpot</ref> || RPC+LP || 2011-06-28 || [http://forum.bitcoin.org/index.php?topic=23664.0 Link] || [http://tinyurl.com/triplemining Link]
|-
| [[UnitedMiners]] || US || 2 || ? || Prop || kept by pool || || 0% || RPC+LP || 2011-06-28 || [http://forum.bitcoin.org/index.php?topic=23664.0 Link] || [http://www.unitedminers.com Link]
|-
| [[yourbtc.net]] || Germany || 300 || [[NMC]] || DGM || shared || || 0% || RPC+LP || 2011-09-10 || [http://bitcointalk.org/index.php?topic=42631.0 Link] || [http://yourbtc.net/ Link]
|-
| [[pool.mkalinin.ru]] || Russia || 16 || No || PPLNS || kept by pool || || 0% || RPC+LP || 2011-07-20 || [https://bitcointalk.org/index.php?topic=30703.0 Link] || [http://pool.mkalinin.ru/ Link]
|}

<references/>

== See also ==
*[[Pooled mining]]
*[http://bcx.me/ Bitcoin Mining Pool Tracker]

[[Category:Mining]]

Talk:Scalability

2011-07-21T09:24:56Z

Tokoin:

There is one major point that the page overlooks: the limitation on block
creation.

Block creation is limited to an average of one block every ten minutes.
Furthermore, block size (which includes the transactions in the block) is limited to 1,000,000 bytes.

Each transaction requires 10 bytes, plus approximately 106 bytes for every
input and approximately 69 bytes for every output. The exact size depends
on the size of the public key, which I have not been able to confirm, but
the keys in my wallet.dat seem to be about 65 bytes each.

If we assume that transactions average two inputs and two outputs, then
the average transaction size will be about 350 bytes ''(note that the main page assumes an average of 1KB per transaction)''. If we further assume
that the block size will, in practice, be limited to 500,000 bytes because
the transaction fees increase as the block size increases, then that means
there will be, on average, approximately 1430 transactions per block. That
works out to an average of 2.5 transactions per second - '''well''' below
the stated goal of at least 4,000 transactions per second.

Even if we assume only one input and one output per transaction, and that
each block will contain the full 1,000,000 bytes, that still works out to only 5,405
transactions per block, or 9 transactions per second.

Unfortunately, this is '''not''' a limitation that can be overcome by
simply increasing memory, or switching to a different ISP with more
bandwidth. It is a built-in limitation, designed to '''deliberately'''
slow down block creation. One solution is to somehow allow blocks to be freely created, while still keeping the rate of coin creation constant.

The bottom line is that, ''as it sits'', this system is not scalable.
:MAX_BLOCK_SIZE has always been planned to increase as needed. That limitation should be ignored. [[User:Theymos|theymos]] 17:15, 4 March 2011 (GMT)
:What Theymos said. Increasing MAX_BLOCK_SIZE will be done when "lightweight, header-only" client mode is done. Until then, block size has to be kept under control.--[[User:Gavinandresen|Gavin Andresen]] 00:19, 5 March 2011 (GMT)
:I've updated the page with more discussion of this topic. --[[User:Mike|Mike]] March 5 2011

The thing with VISA or and credit card company is that there wouldn't be that many actual transactions. When I buy stuff with my credit card the vender doesn't get paid instantly. I pay my bill once a month and the vender gets all his transactions lumped into one payment from VISA (once a week, I think). Someone correct me if I'm wrong, but the number of real transfers of money would be much smaller. --[[User:Randomproof|Randomproof]] 17:29, 1 April 2011 (GMT)

Would also be nice to get some kind of an estimate on how much the crypto-operations could be accelerated with a GPU.
[[User:Jojkaart|Jojkaart]] 20:48, 13 June 2011 (GMT)

Shouldn't this (under Opimizations -> Network Structure): "''Switching to DNS would give dramatically faster startup times that do not scale with the size of the network.''" read: "''Switching to DNS would give dramatically faster startup times that do scale with the size of the network.''"? ie Remove the "not".
--[[User:Tokoin|Tokoin]] 09:24, 21 July 2011 (GMT)