steemitboard (66)in #blockchain • 5 years agoRE: Learn the principles behind a blockchain by playing with this demoCongratulations @vitorbarbosa! You received a personal award! Birthday! - You are on the Steem blockchain for 2…dtubix (38)in #blockchain • 6 years agoRE: Learn the principles behind a blockchain by playing with this demoInteresting I will follow you to see your future posts!