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 140
Discus Fish 135
BTC Guild 37
Unknown with 1AcAj9p Address 24
Polmine 22
Eligius 22
Unknown with 1BX5YoL Address 21
Slush 21
AntPool 16
CloudHashing 14
KnCMiner 11
P2Pool 6
OzCoin 4
EclipseMC 4
BitMinter 4
Megabigpower 1

Unknown Blocks.

Relayed By count
31.146.211.3 24
198.61.223.26 15
176.241.243.15 10
178.79.182.115 9
37.1.207.72 6
62.219.34.151 5
85.25.195.79 3
78.46.51.147 3
46.105.102.78 3
31.220.0.56 3
191.233.34.224 3
74.113.69.4 2
62.210.125.106 2
5.9.99.102 2
220.132.171.251 2
192.155.87.62 2
144.76.176.12 2
144.76.165.79 2
115.29.17.82 2
82.196.8.44 1
75.164.192.172 1
69.30.245.218 1
54.88.122.136 1
54.72.94.231 1
5.35.251.225 1
46.4.99.45 1
37.187.75.24 1
23.94.50.245 1
213.73.98.210 1
192.210.145.7 1
173.255.226.52 1
162.213.252.138 1
148.251.238.178 1
110.23.31.163 1
108.31.41.111 1
108.18.225.122 1
106.185.38.174 1