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 178
Discus Fish 126
BTC Guild 43
Unknown with 1AcAj9p Address 34
Eligius 29
KnCMiner 22
Slush 21
Polmine 20
AntPool 16
Unknown with 1BX5YoL Address 12
CloudHashing 12
BitMinter 7
P2Pool 4
Unknown with 1BwZeHJ Address 3

Unknown Blocks.

Relayed By count
5.9.24.81 17
162.243.58.26 16
185.10.58.159 3
5.158.171.198 2
24.97.94.220 2
95.85.48.141 1
92.222.9.53 1
82.161.214.128 1
74.207.248.235 1
69.55.75.66 1
67.14.164.115 1
66.172.12.216 1
54.213.230.83 1
5.9.111.71 1
5.9.104.212 1
192.210.145.7 1
185.12.12.240 1
185.10.58.203 1
178.27.24.186 1
172.245.59.181 1
162.252.242.123 1
159.8.2.66 1
108.61.192.121 1