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
Discus Fish 146
GHash.IO 131
BTC Guild 33
Unknown with 1BX5YoL Address 23
KnCMiner 23
Slush 22
Eligius 20
Polmine 16
Unknown with 1AcAj9p Address 15
AntPool 14
P2Pool 8
OzCoin 6
BitMinter 6
CloudHashing 5
EclipseMC 2
Megabigpower 1

Unknown Blocks.

Relayed By count
54.200.24.101 16
184.154.76.212 10
88.198.6.235 6
176.9.156.73 6
80.108.143.19 4
37.34.58.203 4
176.9.31.178 4
95.85.58.214 3
89.238.64.139 3
82.221.108.26 3
5.196.40.37 3
95.84.240.160 2
94.23.65.243 2
74.207.235.164 2
68.4.230.215 2
62.210.125.106 2
5.9.104.212 2
31.209.241.95 2
211.149.208.118 2
103.10.84.55 2
99.21.218.19 1
91.121.210.63 1
85.214.243.128 1
85.214.144.149 1
80.69.77.130 1
74.100.61.50 1
69.43.163.188 1
67.205.124.103 1
66.172.33.244 1
62.31.197.165 1
62.146.50.200 1
50.200.78.107 1
50.197.11.193 1
50.116.50.183 1
50.116.20.36 1
5.79.87.152 1
5.39.84.181 1
5.199.151.10 1
46.244.18.35 1
46.163.70.34 1
37.59.27.84 1
24.254.246.240 1
24.111.218.27 1
23.92.80.107 1
23.239.8.10 1
222.112.145.179 1
213.107.150.71 1
204.44.123.109 1
203.69.212.61 1
195.159.111.98 1
192.241.197.17 1
188.138.33.239 1
176.58.115.213 1
162.243.150.77 1
162.209.110.218 1
148.251.236.175 1
144.76.185.151 1
144.76.176.12 1
132.239.17.35 1
115.29.178.116 1
114.141.133.6 1
109.201.135.216 1
106.187.103.224 1
1.234.48.30 1