Repliessteem.history (78)in syntrum • 2 years agoRE: SYNTRUM A MULTI-LAYER BLOCKCHAIN, INFRASTRUCTURE AND ECOSYSTEMHello 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…