Hashrate Distribution An estimation of hashrate distribution amongst the largest mining pools

The graph below shows the market share of the most popular bitcoin mining pools. It should only be used as a rough estimate and for various reasons will not be 100% accurate. A large portion of Unknown blocks does not mean an attack on the network, it simply means we have been unable to determine the origin.

24 hours - 48 hours - 4 Days

Known Blocks.

Relayed By count
GHash.IO 161
Discus Fish 86
BTC Guild 76
Eligius 44
Slush 15
EclipseMC 11
BitMinter 9
Polmine 2
P2Pool 1

Unknown Blocks.

Relayed By count
88.198.54.212 24
162.243.2.142 12
23.23.52.135 11
74.194.169.59 10
162.208.84.179 9
5.9.94.205 8
31.208.64.196 8
162.216.4.199 7
192.241.197.17 6
144.76.176.12 6
137.226.34.42 6
178.162.5.205 5
74.108.71.80 4
206.123.112.180 4
188.226.223.149 4
88.150.205.242 3
24.247.87.145 3
151.227.243.104 3
128.140.224.162 3
78.137.99.153 2
76.120.84.204 2
68.62.8.59 2
198.98.112.107 2
198.154.110.58 2
144.76.91.109 2
144.76.155.217 2
95.85.26.74 1
95.154.193.16 1
94.43.165.187 1
94.23.206.140 1
85.25.195.79 1
85.114.130.179 1
84.209.9.27 1
82.208.30.62 1
82.192.72.22 1
81.217.3.120 1
76.28.244.143 1
72.76.221.107 1
72.53.71.38 1
72.52.72.187 1
71.197.138.216 1
70.90.77.186 1
69.133.3.70 1
68.7.16.115 1
68.12.220.61 1
67.212.92.167 1
67.167.179.197 1
66.25.161.243 1
62.210.146.89 1
62.210.114.127 1
50.63.190.30 1
50.31.99.225 1
50.16.70.150 1
50.137.142.4 1
5.228.1.230 1
5.199.133.193 1
37.1.207.72 1
27.115.106.78 1
24.14.34.90 1
213.219.161.214 1
212.83.138.114 1
210.72.225.93 1
207.12.89.29 1
199.19.95.93 1
188.40.43.147 1
188.226.129.181 1
188.138.122.30 1
176.241.243.15 1
173.73.90.24 1
162.243.91.228 1
106.186.27.55 1