Uncle Mining, an Ethereum Consensus Protocol Flaw Posted by amitmittal1993 on Wednesday August 09, 2017 @10:35AM from the bitslog.wordpress.com dept. https://bitslog.wordpress.com/2016/04/28/uncle-mining-an-ethereum-consensus-protocol-flaw/ ( 1 comment | 3 points | on HN )
ETC - ethereum classic, the 1st pre-hard fork coin
ETH - ethereum as it is now
ET2 - the post 2nd hard fork version of ETH?