Repliesscitech (72)in bitcoin • 3 years agoRE: Bitcoin para Dummies – Aprende qué es en DetalleThis blockchain contains the record of all transactions and addresses with the number of Bitcoins that each one has.steem.history (78)in bigdata • 3 years agoRE: Introducción a Apache SparkHello 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…