Sort:  

Witness are those maintaining steem Blockchain servers. If you vote them and they improve their ranking, they get paid more.

so they are the ones actually mining the steem?

I'm with you, its a little confusing...

Coin Marketplace

STEEM 0.25
TRX 0.19
JST 0.036
BTC 93397.76
ETH 3352.57
USDT 1.00
SBD 3.86