Bitcoin Mining Distribution
Block: 157269
13 Dec 2011 

Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash):

         Total Chain 100.00%           1,618

             Unknown  82.68%           1,335
             Eligius   7.09%             114
         Yourbtc.net   6.30%             103
           BTC Guild   2.36%              40
              NMCbit   1.57%              25