Bitcoin Mining Distribution Block: 221048 14 Feb 2013 Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash): Total Chain 100.00% 6,464 Unknown 29.82% 1,928 BTC Guild 25.15% 1,625 50BTC 14.04% 907 SlushPool 13.45% 869 OzCoin 5.26% 340 BitMinter 4.68% 302 Mt Red 4.09% 264 EclipseMC 2.34% 151 MaxBTC 1.17% 75