Bitcoin Mining Distribution Block: 221916 19 Feb 2013 Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash): Total Chain 100.00% 6,760 BTC Guild 24.22% 1,633 Unknown 22.98% 1,557 50BTC 14.91% 1,010 SlushPool 14.29% 963 OzCoin 7.45% 505 BitMinter 4.97% 336 EclipseMC 4.35% 294 Mt Red 4.35% 294 Eligius 1.24% 84 CoinLab 0.62% 42 TripleMining 0.62% 37