Bitcoin Mining Distribution Block: 249335 31 Jul 2013 Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash): Total Chain 100.00% 70,034 BTC Guild 27.41% 19,197 50BTC 18.78% 13,153 Unknown 12.18% 8,532 ASICMiner 9.14% 6,399 SlushPool 7.11% 4,977 EclipseMC 5.58% 3,910 Eligius 5.58% 3,910 BitMinter 4.57% 3,199 F2Pool 3.55% 2,488 OzCoin 2.54% 1,777 Polmine 2.03% 1,422 Bitparking 1.02% 711 HHTT 0.51% 355