Bitcoin Mining Distribution Block: 252539 17 Aug 2013 Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash): Total Chain 100.00% 98,383 BTC Guild 23.81% 23,424 50BTC 19.05% 18,739 Unknown 11.31% 11,126 GHash.IO 10.12% 9,955 SlushPool 8.33% 8,198 ASICMiner 7.74% 7,613 BitMinter 5.36% 5,270 Eligius 4.76% 4,684 EclipseMC 4.17% 4,099 F2Pool 2.38% 2,342 OzCoin 1.79% 1,756 Bitparking 0.60% 585 HHTT 0.60% 585