macropd (25)in #cryptocurrency • 8 years agoWhat is block chain, cryptographic hash, digital signatures, wallets and cryptocurrency??Block chain at its core is database which is distributed, immutable, and secure. It is certain way of storing data.…macropd (25)in #invest • 8 years agoBuilding core investment platformInvesting is great way to obtain financial freedom. However, reverse is true as well, investing in a project/company…