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
AntPool 104
F2Pool 89
BTCChina Pool 48
GHash.IO 43
KnCMiner 36
BTC Guild 21
Eligius 20
Slush 18
EclipseMC 5
Unknown with 1BwZeHJ Address 4
Bitcoin Affiliate Network 4
Megabigpower 2
BitMinter 2
Polmine 1

Unknown Blocks.

Relayed By count
37.59.44.40 26
211.149.217.191 9
121.41.32.229 8
85.214.90.1 7
208.66.68.130 7
112.124.71.0 6
89.110.156.165 5
84.238.140.176 5
73.2.87.95 5
211.149.223.99 5
178.32.220.61 5
106.185.33.253 5
88.208.1.194 4
50.170.69.164 4
5.9.90.133 4
37.187.139.3 4
213.133.99.7 4
182.92.115.101 4
5.9.65.46 3
37.187.5.123 3
148.251.129.171 3
109.228.152.2 3
104.239.163.124 3
95.211.121.204 2
66.194.38.253 2
62.210.247.161 2
54.154.44.169 2
52.1.202.100 2
46.28.204.123 2
217.23.6.133 2
216.155.138.34 2
208.66.30.27 2
144.76.13.207 2
138.91.94.19 2
121.41.102.20 2
115.28.224.127 2
98.168.167.203 1
91.230.204.45 1
91.121.236.82 1
88.198.255.193 1
85.25.91.174 1
85.114.128.134 1
75.152.209.239 1
75.114.27.33 1
74.113.69.4 1
71.202.21.128 1
67.205.32.42 1
66.175.217.124 1
66.172.10.4 1
62.210.125.106 1
61.63.91.72 1
58.96.179.158 1
54.84.126.154 1
54.67.16.176 1
5.135.7.121 1
37.59.0.38 1
220.89.132.185 1
220.141.148.208 1
218.250.241.138 1
218.2.12.140 1
208.107.241.159 1
198.50.184.123 1
192.81.130.125 1
192.155.84.181 1
191.233.34.224 1
185.82.200.194 1
182.92.222.233 1
178.62.116.148 1
176.9.126.177 1
155.94.64.98 1
144.76.92.180 1
144.76.185.151 1
144.76.172.110 1
131.72.139.164 1
115.28.77.236 1
107.170.200.124 1
107.150.2.6 1
106.187.49.47 1
104.194.28.194 1
104.193.40.248 1
104.130.124.44 1