Bitcoin Mining Distribution Block: 201721 04 Oct 2012 Hashrate (in Difficulty units per second; 1 Difficulty unit == 4 GiHash): Total Chain 100.00% 4,665 Unknown 59.40% 2,772 BTC Guild 15.79% 731 SlushPool 12.03% 564 BitMinter 8.27% 387 OzCoin 3.76% 174 CoinLab 0.75% 35