Has the mining stopped? I receive this message when I try to mine: "Alpha mining max cap has been reached"
I got the same, means you have reached maximum number of coins that you can mine during Alpha.
Social Proof Echelon Alpha: 50000 HADRON coins
Social Proof Echelon 1: 5000 HADRON coins
Social Proof Echelon 2: 2000 HADRON coins
Social Proof Echelon 3: 1000 HADRON coins
Social Proof Echelon 4: 200 HADRON coins