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{{#seo:
|title= Mining Difficulty.How difficult it is to find a hash?zaoniao Wiki
|keywords=bitcoin,mining, Ethereum
|description= Mining Difficulty - is a measure of how difficult it is to find a hash below a given target
}}
<amp/>
This is a list of the main characteristics of the most popular [[cryptocurrencies]]

== Basic definitions ==

'''[[Difficulty]]''' is a measure of how difficult it is to find a [[hash]] below a given [[target]].
The [[Bitcoin]] [[network]] has a global [[block]] difficulty. Valid [[blocks]] must have a hash below this target. [[Mining]] pools also have a pool-specific share difficulty setting a lower limit for shares.

* The formula for difficulty:

difficulty = difficulty_1_target / current_target

(target is a 256 bit number)

difficulty_1_target can be different for various ways to measure difficulty. Traditionally, it represents a hash where the leading 32 [[bits]] are zero and the rest are one (this is known as "pool difficulty" or "pdiff"). The Bitcoin protocol represents targets as a custom floating point type with limited precision; as a result, [[Bitcoin]] [[clients]] often approximate difficulty based on this (this is known as "bdiff").

* '''The maximum of difficulty''' is no minimum target. The maximum difficulty is roughly: maximum_target / 1 (since 0 would result in infinity), which is a ridiculously huge number (about 2^224).

The actual maximum difficulty is when current_target=0, but we would not be able to calculate the difficulty if that happened. (fortunately it never will, so we're ok.)

* '''The minimum difficulty''' is when the target is at the maximum allowed value, is 1.

This is a list of the main characteristics of the most popular [[cryptocurrencies]]
{| class="wikitable collapsible collapsed sortable"
! Coin !! Symbol !! Last price !! [[Exchanges]] !! Difficulty !! Nethashrate !! Daily income !! Volume 24h !! Your [[hashrate]] !! Website
|-
| [[Mining difficulty of 42|42]] || [[42]] || 3.85234199฿ 64.99999899(24/H) 2.25000001(24/L) || [[Cryptsy]] || 6.25072094 54.17777275(24/H) 0.19231841(24/L) || 668.7Mh/s 18,929.2Mh/s(24/H) 6.8Mh/s(24/L) || 0.00052071฿ 0.00013517COINS 0.23US-Dollar || 0.66 ฿ || 1,000 Mh/s || [http://fourtytwo42.com/]
|-
| [[Mining difficulty of Aiden|Aiden]] || [[ADN]] || n/a n/a (24/H) n/a (24/L) || [[Poloniex]] [[Allcoin]] || 0.49926483 205.3885706(24/H) 0.49926483(24/L) || 71.9Mh/s 18,987.8Mh/s(24/H) 71.9Mh/s(24/L) || n/a 2,015[[Coins]] n/a || n/a || 1,000 Mh/s || -
|-
| [[Mining difficulty of Alphacoin|Alphacoin]] || [[ALF]] || 0.00000037฿ 0.00000379(24/H) 0.00000027(24/L) || [[Cryptsy]] || 1.90331668 4.39215949(24/H) 0.00024414(24/L) || 193.5Mh/s 3,751.7Mh/s(24/H) 0.0Mh/s(24/L) || 0.00019553฿ 528.5Coins 0.09US-Dollar || 0.01 ฿ || 1,000 Mh/s || -
|-
| [[Mining difficulty of AmericanCoin|AmericanCoin]] || [[AMC]] || 0.00000090฿ 0.00000579(24/H) 0.00000085(24/L) || [[Cryptsy]] || 3.79345657 3.79345657(24/H) 0.75632725(24/L) || 4.5Mh/s 4,300.3Mh/s(24/H) 1.8Mh/s(24/L) || 0.00047727฿ 530.3Coins 0.21US-Dollar || 0.01 ฿ || 1,000 Mh/s || [http://amccoin.com]
|-
| [[Mining difficulty of AnonCoin|AnonCoin]] || [[ANC]] || 0.00096159฿ 0.00300000(24/H) 0.00088817(24/L) || [[Cryptsy]] || 160.81129525 167.6522434(24/H) 26.45352843(24/L) || 3,802.0Mh/s 4,607.3Mh/s(24/H) 504.6Mh/s(24/L) || 0.00060145฿ 0.62547123COINS 0.27US-Dollar || 4.91 ฿ || 1,000 Mh/s || [https://anoncoin.net/]
|-
| [[Mining difficulty of AuroraCoin|AuroraCoin]] || [[AUR]] || 0.00009574฿ 0.00239798(24/H) 0.00010057(24/L) || [[Poloniex]] [[Bittrex]] [[BTER|BTER]] || 63.50651268 216.6362357(24/H) 32.99939811(24/L) || 695.7Mh/s 5,831.5Mh/s(24/H) 296.2Mh/s(24/L) || 0.00037909฿ 3.96Coins 0.17US-Dollar || 5.32 ฿ || 1,000 Mh/s || [http://www.auroracoin.org/]
|-
| [[Mining difficulty of CasinoCoin|CasinoCoin]] || [[CSC]] || 0.00000273฿ 0.00001232(24/H) 0.00000177(24/L) || [[Cryptsy]] || 0.00024414 47.28381631(24/H) 0.00024414(24/L) || 0.0Mh/s 474.8Mh/s(24/H) -0.2Mh/s(24/L) || n/a n/a n/a || 0.58 ฿ || 1,000 Mh/s || [http://casinoco.in/]
|-
| [[Mining difficulty of Coinye|Coinye]] || [[COYE]] || n/a n/a (24/H) n/a (24/L) || - || 5.21043506 7.67822499(24/H) 0.47289009(24/L) || 169.6Mh/s 731.1Mh/s(24/H) 4.3Mh/s(24/L) || n/a 1,286,940Coins n/a || n/a || 1,000 Mh/s || [http://coinyeco.in/]
|-
| [[Mining difficulty of Cryptogenic Bullion|Cryptogenic Bullion]] || [[CGB]] || 0.00030000฿ 0.00095400(24/H) 0.00020003(24/L) || [[Bittrex]] [[Cryptsy]] || 0.10845264 3.42585429(24/H) 0.02167005(24/L) || 8.0Mh/s 401.2Mh/s(24/H) 0.5Mh/s(24/L) || 0.00055646฿ 1.85Coins 0.25US-Dollar || 0.12 ฿ || 1,000 Mh/s || -
|-
| [[Mining difficulty of Diamond|Diamond]] || [[DMD]] || 0.00021016฿ 0.00151500(24/H) 0.00020010(24/L) || [[Cryptsy]] || 70.36193895 127.2244424(24/H) 0.00024414(24/L) || 4,785.5Mh/s 9,737.3Mh/s(24/H) 0.0Mh/s(24/L) || 0.00060085฿ 2.86Coins 0.27US-Dollar || 0.21 ฿ || 1,000 Mh/s || [http://diamondcoin.net/]
|-
| [[Mining difficulty of DigiByte|DigiByte]] || [[DGB]] || 0.00000034฿ 0.00000089(24/H) 0.00000026(24/L) || [[Cryptsy]] || 483.09606082 599.9055997(24/H) 4.07838035(24/L) || 1,871.8Mh/s 8,980.0Mh/s(24/H) 73.7Mh/s(24/L) || 0.00011326฿ 333.1Coins 0.05US-Dollar || 0.33 ฿ || 1,000 Mh/s || [http://www.digibyte.co/]
|-
| [[Mining difficulty of Doge|Doge]] || [[DOGE]] || 0.00000036฿ 0.00000144(24/H) 0.00000004(24/L) || [[Poloniex]] [[Bittrex]] [[BTER|BTER]] || 844.96292407 2,417.519203(24/H) 381.7891359(24/L) || 44,784.2Mh/s 107,570.9Mh/s(24/H) 28,600.3Mh/s(24/L) || 0.00214269฿ 5,952Coins 0.95US-Dollar || 65.65 ฿ || 1,000 Mh/s || -
|-
| [[Mining difficulty of DopeCoin|DopeCoin]] || [[DOPE]] || 0.00000013฿ 0.00000154(24/H) 0.00000005(24/L) || [[Allcoin]] || 6.08886932 56.18859748(24/H) 0.00218114(24/L) || 55.9Mh/s 638.0Mh/s(24/H) 20.4Mh/s(24/L) || 0.00020401฿ 1,569Coins 0.09US-Dollar || 0.01 ฿ || 1,000 Mh/s || [http://www.dopecoin.com/]
|-
| [[Mining difficulty of DuckDuckCoin|DuckDuckCoin]] || [[DUCK]] || n/a n/a (24/H) n/a (24/L) || - || 0.00182463 4.25683678(24/H) 0.00024414(24/L) || 0.0Mh/s 77.7Mh/s(24/H) -73,232.2Mh/s(24/L) || n/a 1.33Coins n/a || n/a || 1,000 Mh/s || [http://duckduckcoin.com/]
|-
| [[Mining difficulty of ECCoin|ECCoin]] || [[ECC]] || 0.00000013฿ 0.00000087(24/H) 0.00000002(24/L) || [[Poloniex]] [[Bittrex]] [[Allcoin]] || 37.53923539 98.57434957(24/H) 13.76310213(24/L) || 3,619.1Mh/s 30,042.8Mh/s(24/H) 225.4Mh/s(24/L) || 7.0E-8฿ 0.53588112COINS 0US-Dollar || 0.01 ฿ || 1,000 Mh/s || [http://www.eccoin.cc/]
|-
| [[Mining difficulty of Earthcoin|Earthcoin]] || [[EAC]] || 0.00000005฿ 0.00000013(24/H) 0.00000001(24/L) || [[Poloniex]] [[Bittrex]] [[Cryptsy]] || 16.59911706 70.89625213(24/H) 1.63457461(24/L) || 734.1Mh/s 3,355.6Mh/s(24/H) 62.4Mh/s(24/L) || 0.00063625฿ 12,725Coins 0.28US-Dollar || 2.58 ฿ || 1,000 Mh/s || [http://getearthcoin.com]

|-
| [[Mining difficulty of Feathercoin|Feathercoin]] || [[FTC]] || 0.00005818฿ 0.00026000(24/H) 0.00004901(24/L) || [[Bittrex]] [[BTER]] [[Cryptsy]] || 247.53541076 311.8567950(24/H) 0.00992053(24/L) || 4,516.0Mh/s 56,823.5Mh/s(24/H) 56.8Mh/s(24/L) || 0.00094563฿ 16.25Coins 0.42US-Dollar || 4 ฿ || 1,000 Mh/s || [http://www.feathercoin.com/]
|-
| [[Mining difficulty of Grandcoin|Grandcoin]] || [[GDC]] || 0.00000010฿ 0.00000062(24/H) 0.00000008(24/L) || [[Cryptsy]] || 5.40472210 6.78685103(24/H) 0.35338747(24/L) || 11.8Mh/s 285.8Mh/s(24/H) 2.0Mh/s(24/L) || 0.00037551฿ 3,755Coins 0.17US-Dollar || 0.01 ฿ || 1,000 Mh/s || [http://grandcoin.org/]
|-
| [[Mining difficulty of KarmaCoin|KarmaCoin]] || [[KARM]] || n/a n/a (24/H) n/a (24/L) || [[Bittrex]] || 27.60167417 48.79846190(24/H) 3.93372420(24/L) || 1,742.2Mh/s 3,929.0Mh/s(24/H) 215.3Mh/s(24/L) || n/a 25,509Coins n/a || n/a || 1,000 Mh/s || [http://karmacoin.info/]
|-
| [[Mining difficulty of Klondikecoin|Klondikecoin]] || [[KDC]] || 0.00000305฿ 0.00006013(24/H) 0.00000305(24/L) || [[Poloniex]] [[BTER]] [[Cryptsy]] || 0.83098752 45.35882684(24/H) 0.00024414(24/L) || 6.5Mh/s 825.1Mh/s(24/H) 2.0Mh/s(24/L) || 0.00029534฿ 96.83Coins 0.13US-Dollar || 0.01 ฿ || 1,000 Mh/s || [http://klondikecoin.com/]
|-
| [[Mining difficulty of LegendaryCoin|LegendaryCoin]] || [[LGD]] || 0.00000291฿ 0.00067900(24/H) 0.00000252(24/L) || [[Bittrex]] || 57.26745813 84.54168892(24/H) 0.01634498(24/L) || 2,104.3Mh/s 3,699.6Mh/s(24/H) 0.1Mh/s(24/L) || 3.73E-6฿ 1.28Coins 0US-Dollar || n/a || 1,000 Mh/s || [http://legendarycoin.com/]
|-
| [[Mining difficulty of Litebar|Litebar]] || [[LTB]] || 0.00003351฿ 0.00300000(24/H) 0.00003350(24/L) || [[Cryptsy]] || 5.05296028 21.74654591(24/H) 1.76046312(24/L) || 127.4Mh/s 729.8Mh/s(24/H) 22.1Mh/s(24/L) || 0.00026682฿ 7.96Coins 0.12US-Dollar || 0.02 ฿ || 1,000 Mh/s || [http://litebar.biz/]
|-
| [[Mining difficulty of Litecoin|Litecoin]] || [[LTC]] || 0.01299682฿ 0.04849960(24/H) 0.01097000(24/L) || [[Poloniex]] [[Bittrex]] [[BTER]] || 22,724.5884083 22,724.58841(24/H) 5,162.439372(24/L) || 648,595.8Mh/s 811,441.2Mh/s(24/H) 108,317.2Mh/s(24/L) || 0.00057526฿ 0.04426168COINS 0.26US-Dollar || 42.01 ฿ || 1,000 Mh/s || [http://litecoin.org/]
|-
| [[Mining difficulty of LottoCoin|LottoCoin]] || [[LOT]] || 0.00000001฿ 0.00000003(24/H) 0.00000001(24/L) || [[Cryptsy]] || 0.50016409 25.54138363(24/H) 0.06119836(24/L) || 74.3Mh/s 5,690.0Mh/s(24/H) 20.7Mh/s(24/L) || 0.00173247฿ 173,247Coins 0.77US-Dollar || 0.02 ฿ || 1,000 Mh/s || [http://www.lottocoin.org]
|-
| [[Mining difficulty of Megacoin|Megacoin]] || [[MEC]] || 0.00008855฿ 0.00037920(24/H) 0.00007779(24/L) || [[Poloniex]] [[BTER]] [[Cryptsy]] || 77.46096239 157.4843003(24/H) 0.00024414(24/L) || 2,067.2Mh/s 7,186.1Mh/s(24/H) 0.4Mh/s(24/L) || 0.00057491฿ 6.49Coins 0.26US-Dollar || 2.07 ฿ || 1,000 Mh/s || [http://www.megacoin.in/]
|-
| [[Mining difficulty of Mintcoin|Mintcoin]] || [[MINT]] || 0.00000005฿ 0.00000019(24/H) 0.00000003(24/L) || [[Poloniex]] [[Bittrex]] [[BTER]] || 0.06147789 121.4946990(24/H) 0.00024414(24/L) || 10.6Mh/s 17,221.6Mh/s(24/H) 0.0Mh/s(24/L) || 1.636E-5฿ 327.2Coins 0.01US-Dollar || 1.73 ฿ || 1,000 Mh/s || [http://mintcoin.biz/]
|-
| [[Mining difficulty of MoonCoin|MoonCoin]] || [[MOON]] || n/a n/a (24/H) n/a (24/L) || [[Cryptsy]] || 0.00024414 0.98510357(24/H) 0.00024414(24/L) || 0.0Mh/s 51.1Mh/s(24/H) 0.0Mh/s(24/L) || n/a 82,397,671,876Coins n/a || n/a || 1,000 Mh/s || [http://mooncoin.info/]
|-
| [[Mining difficulty of Muniti|Muniti]] || [[MUN]] || 0.00000015฿ 0.00001496(24/H) 0.00000003(24/L) || [[Poloniex]] [[Bittrex]] || 1.79106313 113.5196801(24/H) 0.17752850(24/L) || 79.3Mh/s 11,204.3Mh/s(24/H) 10.3Mh/s(24/L) || 0.00018571฿ 1,238Coins 0.08US-Dollar || n/a || 1,000 Mh/s || [http://www.muniticoin.com/]
|-
| [[Mining difficulty of NyanCoin|NyanCoin]] || [[NYAN]] || n/a n/a (24/H) n/a (24/L) || [[Cryptsy]] || 0.84757052 7.32730650(24/H) 0.39006375(24/L) || 66.9Mh/s 4,731.8Mh/s(24/H) 12.4Mh/s(24/L) || n/a 7,998Coins n/a || n/a || 1,000 Mh/s || -
|-
| [[Mining difficulty of PXL Coin|PXL Coin]] || [[PXL]] || n/a n/a (24/H) n/a (24/L) || - || 0.00024414 16.00000000(24/H) 0.00024414(24/L) || 0.1Mh/s 298.4Mh/s(24/H) -0.2Mh/s(24/L) || n/a 2,059,942Coins n/a || n/a || 1,000 Mh/s || [http://www.pxlcoin.com/]
|-
| [[Mining difficulty of ParallaxCoin|ParallaxCoin]] || [[PLX]] || 0.00004502฿ 0.00004503(24/H) 0.00003785(24/L) || [[Poloniex]] [[Bittrex]] || 55.27336942 76.81898936(24/H) 12.44698870(24/L) || 2,520.6Mh/s 3,106.5Mh/s(24/H) 622.3Mh/s(24/L) || 0.00122887฿ 27.30Coins 0.55US-Dollar || n/a || 1,000 Mh/s || -
|-
| [[Mining difficulty of PawnCoin|PawnCoin]] || [[PAWN]] || 0.00000565฿ 0.00001999(24/H) 0.00000002(24/L) || [[Poloniex]] [[Bittrex]] || 0.46799015 66.79311086(24/H) 0.00128139(24/L) || 8.2Mh/s 2,023.1Mh/s(24/H) 0.0Mh/s(24/L) || 0.0007286฿ 129.0Coins 0.32US-Dollar || n/a || 1,000 Mh/s || [http://www.epawncoin.com/]
|-
| [[Mining difficulty of QQCoin|QQCoin]] || [[QQC]] || n/a n/a (24/H) n/a (24/L) || [[Allcoin]] || 0.00091614 0.05668377(24/H) 0.00034665(24/L) || 0.3Mh/s 13.4Mh/s(24/H) 0.0Mh/s(24/L) || n/a 8,783Coins n/a || n/a || 1,000 Mh/s || [http://qqco.in/]
|-
| [[Mining difficulty of Rapidcoin|Rapidcoin]] || [[RPD]] || n/a n/a (24/H) n/a (24/L) || - || 0.00024414 0.02909390(24/H) 0.00024414(24/L) || 0.0Mh/s 1.5Mh/s(24/H) 0.0Mh/s(24/L) || n/a 6,591,814Coins n/a || n/a || 1,000 Mh/s || [http://getrapidcoin.com/]
|-
| [[Mining difficulty of ReddCoin|ReddCoin]] || [[RDD]] || 0.00000035฿ 0.00000040(24/H) 0.00000002(24/L) || [[Poloniex]] [[Bittrex]] [[Cryptsy]] || 80.99568395 95.82946347(24/H) 0.44561322(24/L) || 5,771.3Mh/s 11,569.7Mh/s(24/H) 32.9Mh/s(24/L) || 0.00869281฿ 24,8[[37coins|37Coins]] 3.87US-Dollar || 713.57 ฿ || 1,000 Mh/s || [http://www.reddcoin.com/]
|-
| [[Mining difficulty of RonPaulCoin|RonPaulCoin]] || [[RPC]] || 0.00010115฿ 0.00881000(24/H) 0.00010113(24/L) || [[Cryptsy]] || 3.58151832 147.9749861(24/H) 2.44724666(24/L) || 128.2Mh/s 6,156.9Mh/s(24/H) 18.9Mh/s(24/L) || 0.00056814฿ 5.62Coins 0.25US-Dollar || 0.14 ฿ || 1,000 Mh/s || [http://www.ronpaulcoin.com/]
|-
| [[Mining difficulty of UltraCoin|UltraCoin]] || [[UTC]] || 0.00001613฿ 0.00018200(24/H) 0.00001201(24/L) || [[Poloniex]] [[Bittrex]] [[Cryptsy]] || 0.00044400 29.03080453(24/H) 0.00024414(24/L) || 0.1Mh/s 4,024.3Mh/s(24/H) -8.7Mh/s(24/L) || 0.32627072฿ 20,228Coins 145.19US-Dollar || 1.28 ฿ || 1,000 Mh/s || [http://ultracoin.net/]
|-
| [[Mining difficulty of Vertcoin|Vertcoin]] || [[VTC]] || 0.00022826฿ 0.00295000(24/H) 0.00022826(24/L) || [[Poloniex]] [[Bittrex]] [[BTER]] || 161.68382098 339.4840041(24/H) 13.44495146(24/L) || 4,637.2Mh/s 11,690.5Mh/s(24/H) 397.6Mh/s(24/L) || 0.00071฿ 3.11Coins 0.32US-Dollar || 8.57 ฿ || 1,000 Mh/s || [http://vertcoin.org/]
|-
| [[Mining difficulty of VirtualMiningCoin|VirtualMiningCoin]] || [[VMC]] || 0.00000040฿ 0.00000494(24/H) 0.00000005(24/L) || [[Bittrex]] || 0.17582763 2.50798537(24/H) 0.00148959(24/L) || 12.5Mh/s 206.0Mh/s(24/H) 0.4Mh/s(24/L) || 0.00313394฿ 7,835Coins 1.39US-Dollar || n/a || 1,000 Mh/s || [http://virtualminingcoin.org/]
|-
| [[Mining difficulty of Whitecoin|Whitecoin]] || [[WC]] || 0.00000102฿ 0.00002383(24/H) 0.00000059(24/L) || [[Poloniex]] [[Bittrex]] [[Cryptsy]] || 3.62502655 2,716.067828(24/H) 0.00024414(24/L) || 161.5Mh/s 124,177.3Mh/s(24/H) 0.0Mh/s(24/L) || 0฿ n/a 0US-Dollar || n/a || 1,000 Mh/s || [http://whitecoin.co/]
|-
| [[Mining difficulty of microCoin|microCoin]] || [[MRC]] || n/a n/a (24/H) n/a (24/L) || [[Poloniex]] || 0.00053062 0.29205587(24/H) 0.00053047(24/L) || 0.1Mh/s 54.2Mh/s(24/H) 0.0Mh/s(24/L) || n/a 53,248,010Coins n/a || n/a || 1,000 Mh/s || -
|-
| [[Mining difficulty of Chaincoin|Chaincoin]] || [[CHC]] || n/a n/a (24/H) n/a (24/L) || - || 0.17094541 1.83617719(24/H) 0.00242404(24/L) || 8.2Mh/s 86.2Mh/s(24/H) -17,472.5Mh/s(24/L) || n/a 188.3Coins n/a || n/a || 100 Kh/s || [http://chaincoin.cryptotycoons.com/]
|-
| [[Mining difficulty of CopperLark|CopperLark]] || [[CLR]] || 0.00001906฿ 0.00020992(24/H) 0.00001478(24/L) || [[Cryptsy]] || 3,620.61323379 13,401.84216(24/H) 2,782.978899(24/L) || 52,106.6Mh/s 50,318,190.5Mh/s(24/H) -10,809,075.5Mh/s(24/L) || 5.3E-7฿ 0.02778061COINS 0US-Dollar || 0.18 ฿ || 100 Kh/s || [https://copperlark.com/]
|-
| [[Mining difficulty of MaruCoin|MaruCoin]] || [[MARU]] || 0.00000001฿ 0.00107900(24/H) 0.00000001(24/L) || [[Bittrex]] || 9.29529660 222.4146571(24/H) 1.44944044(24/L) || 105.9Mh/s 3,622.3Mh/s(24/H) 47.6Mh/s(24/L) || 1.144E-5฿ 1,144Coins 0.01US-Dollar || n/a || 100 Kh/s || [http://www.marucoin.com/]
|-
| [[Mining difficulty of MaxCoin|MaxCoin]] || [[MAX]] || 0.00004050฿ 0.00025347(24/H) 0.00003769(24/L) || [[Poloniex]] [[BTER]] [[Cryptsy]] || 15,475.7292496 167,786.0366(24/H) 0.00390625(24/L) || 2,177,810.6Mh/s 19,885,770.2Mh/s(24/H) 3.3Mh/s(24/L) || 2.5E-7฿ 0.00623942COINS 0US-Dollar || 2.3 ฿ || 100 Kh/s || [http://www.maxcoin.co.uk/]
|-
| [[Mining difficulty of Metiscoin|Metiscoin]] || [[MTC]] || n/a n/a (24/H) n/a (24/L) || [[Poloniex]] || 2,607.84981356 18,723.87757(24/H) 2,607.849814(24/L) || 342.5Mh/s 14,650,081.7Mh/s(24/H) 31.5Mh/s(24/L) || n/a 0.03856926COINS n/a || n/a || 100 Kh/s || [http://www.metiscoin.org/]
|-
| [[Mining difficulty of Quark|Quark]] || [[QRK]] || 0.00002027฿ 0.00006768(24/H) 0.00001893(24/L) || [[Bittrex]] [[BTER]] [[Cryptsy]] || 685.17567540 1,706.766365(24/H) 140.7829217(24/L) || 101,648.4Mh/s 252,246.6Mh/s(24/H) 5,145.8Mh/s(24/L) || 6.0E-8฿ 0.00293597COINS 0US-Dollar || 9.79 ฿ || 100 Kh/s || [https://cryptogenicbullion.org/]
|-
| [[Mining difficulty of Bitcoin|Bitcoin]] || [[BTC]] || 1.00000000฿ 1.00000000(24/H) 1.00000000(24/L) || [[BTC-E|BTC-e]] || 18,736,441,558.3100 100,000,000.00(24/H) 100,000,000.00(24/L) || 150,885,757,005.7Mh/s 6,631,234,429,521.8Mh/s(24/H) 16,918,105.3Mh/s(24/L) || 0.00014763฿ 0.00014763COINS 0.07US-Dollar || n/a || 5.5 Gh/s || [http://bitcoin.org/]
|-
| [[Mining difficulty of Bonus|Bonus]] || [[BNS]] || 0.00000010฿ 0.00000031(24/H) 0.00000001(24/L) || [[Poloniex]] [[Bittrex]] || 50,655.7893992 581,179.3480(24/H) 7,879.021255(24/L) || -13,531,779.8Mh/s 133,592,870.7Mh/s(24/H) -103,543,072.7Mh/s(24/L) || 0.00103355฿ 10,336Coins 0.46US-Dollar || n/a || 5.5 Gh/s || [http://bonuscoin.net/]
|-
| [[Mining difficulty of MazaCoin|MazaCoin]] || [[MZC]] || 0.00000020฿ 0.00000192(24/H) 0.00000018(24/L) || [[Poloniex]] [[Bittrex]] [[Cryptsy]] || 4,080.16279224 11,797,028.47(24/H) 1,388.661332(24/L) || 902.1Mh/s 6,080,339,573.9Mh/s(24/H) 0.0Mh/s(24/L) || 0.02711684฿ 135,584Coins 12.07US-Dollar || 0.18 ฿ || 5.5 Gh/s || [http://www.mazacoin.org/]
|-
| [[Mining difficulty of Takcoin|Takcoin]] || [[TAK]] || 0.00000002฿ 0.00000044(24/H) 0.00000002(24/L) || [[Cryptsy]] || 9,455.28343383 169,503.2738(24/H) 6,588.384175(24/L) || 477,851.8Mh/s 92,743,493.4Mh/s(24/H) 439,681.0Mh/s(24/L) || 0.00023403฿ 11,702Coins 0.1US-Dollar || 0.04 ฿ || 5.5 Gh/s || [http://takticker.com/]
|-
| [[Mining difficulty of Terracoin|Terracoin]] || [[TRC]] || 0.00005869฿ 0.00028628(24/H) 0.00004001(24/L) || [[Cryptsy]] [[BTC-E|BTC-e]] || 1,083,848.41484 2,063,930.234(24/H) 555.4653231(24/L) || 24,764,820.3Mh/s 36,819,324,446.2Mh/s(24/H) -1,349,382,346.7Mh/s(24/L) || 0.00011982฿ 2.04Coins 0.05US-Dollar || 1.12 ฿ || 5.5 Gh/s || [http://terracoin.org/]
|-
| [[Mining difficulty of Tigercoin|Tigercoin]] || [[TGC]] || 0.00000037฿ 0.00000270(24/H) 0.00000034(24/L) || [[Cryptsy]] || 151,558.635279 657,212.9084(24/H) 1.00000000(24/L) || 1,835,332.7Mh/s 1,268,653,745.4Mh/s(24/H) -165,192,150.3Mh/s(24/L) || 1.729E-5฿ 46.72Coins 0.01US-Dollar || 0.02 ฿ || 5.5 Gh/s || [http://tigercoin.wordpress.com/]
|-
| [[Mining difficulty of Unobtanium|Unobtanium]] || [[UNO]] || 0.00370000฿ 0.00693474(24/H) 0.00000100(24/L) || [[Cryptsy]] || 0.00141455 6,096,044.902(24/H) 0.00024414(24/L) || 0.0Mh/s 659,668,499.0Mh/s(24/H) -1,772,553,614.8Mh/s(24/L) || 18฿ 4,888,530Coins 8010US-Dollar || 1.82 ฿ || 5.5 Gh/s || [http://unobtanium.io/]
|-
| [[Mining difficulty of Zetacoin|Zetacoin]] || [[ZET]] || 0.00003181฿ 0.00010325(24/H) 0.00002055(24/L) || [[BTER]] [[Cryptsy]] || 44,262.2794307 161,195.4780(24/H) 4,965.525814(24/L) || 8,983,063.1Mh/s 350,866,964.3Mh/s(24/H) 2,684.9Mh/s(24/L) || 7.951E-5฿ 2.50Coins 0.04US-Dollar || 3.31 ฿ || 5.5 Gh/s || [http://www.zeta-coin.org/]
|}

== How it work ==
Example [[for Bitcoin]], the difficulty is adjusted every 2016 blocks based on the time it took to find the previous 2016 blocks. At the desired rate of one block each 10 minutes, 2016 blocks would take exactly two weeks to find. If the previous 2016 blocks took more than two weeks to find, the difficulty is reduced. If they took less than two weeks, the difficulty is increased. The [[change]] in difficulty is in proportion to the amount of time over or under two weeks the previous 2016 blocks took to find.

To find a block, the hash must be less than the target. The hash is effectively a random number between 0 and 2**256-1. The offset for difficulty 1 is

0xffff * 2**208

and for difficulty D is

(0xffff * 2**208)/D

The expected number of hashes we need to calculate to find a block with difficulty D is therefore

D * 2**256 / (0xffff * 2**208)

or just

D * 2**48 / 0xffff

The difficulty is set such that the previous 2016 blocks would have been found at the rate of one every 10 minutes, so we were calculating (D * 2**48 / 0xffff) hashes in 600 seconds. That means the hash rate of the network was

D * 2**48 / 0xffff / 600

over the previous 2016 blocks. Can be further simplified to

D * 2**32 / 600

without much loss of accuracy.

At difficulty 1, that is around 7 Mhashes per second.

At the time of writing, the difficulty is 2[[2012]].4941572, which means that over the previous set of 2016 blocks found the average network hash rate was

22012.4941572 * 2**32 / 600 = around 157 Ghashes per second.
== See also ==

* [[Mining Hardware]]

* [[Mining]]

* [[Mining Pools]]

* [[Mining Pools List]]

== References ==

http://www.cryptocoinsinfo.com
[[Category:Mining]]

Mining Difficulty in Different Coins - Revision history

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