steemitboard (66)in #blockchain • 6 years agoRE: 区块链第一课 如何在没有central authority的小型网络上维护可行的交易清单Congratulations @troylee! You received a personal award! Birthday! - You are on the Steem blockchain for 2 years! You can view your badges on your Steem Board and…steemitboard (66)in #blockchain • 7 years agoRE: 区块链第一课 如何在没有central authority的小型网络上维护可行的交易清单Congratulations @troylee! You received a personal award! Year on Steemit Click here to view your Board Support SteemitBoard's project ! Vote for its…