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 151
BTC Guild 89
Discus Fish 87
Eligius 43
Slush 11
BitMinter 8
EclipseMC 5
Polmine 3
P2Pool 2
50BTC 2
TripleMining 1
OzCoin 1

Unknown Blocks.

Relayed By count
85.25.195.79 49
50.89.24.108 31
64.90.183.200 20
68.7.16.115 6
23.23.52.135 6
74.194.169.59 5
178.18.90.41 5
206.123.112.180 4
88.150.205.242 3
192.99.44.42 3
176.28.104.93 3
87.114.173.160 2
86.29.14.11 2
82.192.72.22 2
71.244.54.5 2
69.195.142.122 2
66.190.253.165 2
206.71.179.116 2
198.98.112.107 2
162.243.91.228 2
128.140.224.162 2
99.169.166.26 1
95.211.187.130 1
94.43.165.187 1
89.238.64.139 1
89.212.154.180 1
85.114.130.179 1
78.108.54.193 1
75.150.123.25 1
71.202.128.145 1
70.90.77.186 1
69.164.193.73 1
67.243.5.159 1
67.163.160.108 1
66.25.161.243 1
66.207.163.131 1
62.176.107.202 1
54.72.0.85 1
54.226.153.205 1
54.203.253.103 1
54.203.247.173 1
54.198.204.15 1
50.16.70.150 1
46.4.95.176 1
46.229.238.187 1
37.48.73.22 1
37.1.207.72 1
31.208.64.196 1
24.247.87.145 1
24.21.39.104 1
24.18.93.186 1
24.14.34.90 1
213.219.161.214 1
213.133.103.74 1
204.195.53.23 1
198.199.80.210 1
188.226.199.119 1
176.241.243.15 1
173.68.72.75 1
162.216.4.199 1
137.226.34.42 1
108.59.12.163 1
107.150.2.6 1