steemitboard (66)in #blockchain • 5 years agoRE: 작업증명과 지분증명 (Proof of Work and Proof of Stake)Congratulations @coolmate! You received a personal award! Birthday! - You are on the Steem blockchain for 1…steemitboard (66)in #blockchain • 6 years agoRE: 작업증명과 지분증명 (Proof of Work and Proof of Stake)Congratulations @coolmate! You have completed the following achievement on Steemit and have been rewarded with new…richardjk (25)in #blockchain • 6 years agoRE: 작업증명과 지분증명 (Proof of Work and Proof of Stake)잘읽었습니다.