Opacity has quickly established itself as a tool to effortlessly share files uploaded through Oyster. Opacity means you are in control over who sees your data. Keep your file handle private, and you are the only one able to access that file. Selectively share it with friends, or whole communities, to make files accessible to whatever audience you like.
Through the Internet of things, blockchain technologies and smart contracts, a global halal product ecosystem is established to regulate halal food industry certification system, which aims to trace Halal food, medicine and cosmetics at it's respective origin.