Repliesitzsamir786187 (25)in bitcoin • last yearRE: Bitcoin: A Revolutionary Digital CurrencyTrxsteem.history (78)in bitcoin • last yearRE: Bitcoin: A Revolutionary Digital CurrencyHello welcome to Steemit world! I'm @steem.history, who is steem witness. This is a recommended post for you. Newcomers Guide and The Complete Steemit Etiquette Guide (Revision 2.0) and…