Sort:  

Can you tell me what's the private key? Beside the post key ( show private key) when you click you find another key ) same with Active and memo keys. Thanks for your help :)

To keep it simple. To identify you as you on the steem blockchain there are 2 keys. Public keys and Private keys. The public key under your account is visible for everyone....but there is only one private key that can 'communicate' with this public key. That's you. that's why when you post something I know it comes from you.

Coin Marketplace

STEEM 0.29
TRX 0.21
JST 0.039
BTC 97628.39
ETH 3725.53
USDT 1.00
SBD 3.98