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 30
F2Pool 24
BW.COM 14
KnCMiner 8
GHash.IO 7
BTCChina Pool 7
Slush 5
BTC Guild 4
Eligius 3
Bitcoin Affiliate Network 3
Unknown with 1BwZeHJ Address 1
Megabigpower 1
MegaBigPower 1
BitMinter 1

Unknown Blocks.

Relayed By count
76.65.50.111 4
91.108.68.155 3
5.9.90.133 3
91.121.14.45 2
45.55.165.166 2
31.146.211.3 2
212.71.238.204 2
178.79.179.49 2
148.251.6.214 2
121.41.32.229 2
93.174.90.30 1
89.248.169.6 1
84.200.17.20 1
54.213.230.83 1
54.154.44.169 1
5.9.97.106 1
46.4.3.125 1
37.59.44.40 1
31.170.110.127 1
213.155.7.24 1
194.6.233.38 1
193.187.79.76 1
164.15.10.189 1
144.76.118.88 1
138.91.94.19 1
121.41.102.20 1
109.80.207.237 1