steemitboard (66)in #ethereum • 4 years agoRE: What are Crypto Currencies?Congratulations @johnwallet! You received a personal award! Birthday! - You are on the Steem blockchain for 2…steemitboard (66)in #ethereum • 5 years agoRE: What are Crypto Currencies?Congratulations @johnwallet! You received a personal award! Birthday! - You are on the Steem blockchain for 1…cheetah (77)in #bit • 6 years agoRE: What is Bit coin?Hi! I am a robot. I just upvoted you! I found similar content that readers might be interested in: