steemitboard (66)in #blockchain-study • 4 years agoRE: 블록체인을 활용한 전자투표 시스템Congratulations @yunha2.test! You received a personal award! Birthday! - You are on the Steem blockchain for 1…steemitboard (66)in #blockchain-study • 5 years agoRE: 블록체인을 활용한 전자투표 시스템Congratulations @yunha2.test! You have completed the following achievement on the Steem blockchain and have been…steemitboard (66)in #blockchain-study • 5 years agoRE: 블록체인을 활용한 전자투표 시스템Congratulations @yunha2.test! You have completed the following achievement on the Steem blockchain and have been…