Blockchain - is a distributed database that doesn’t have storage devices connected to a shared server. This database stores an ever-growing list of ordered records, called blocks. Each block contains a timestamp and a link to the previous block.
 Smart-contract - This is a program code that allows you to automatically perform certain functions when certain conditions occur. To implement smart-contracts, a decentralized environment is required that completely excludes the human factor. To use the transfer of value in a smart-contract, it requires a cryptocurrency.Welcome aboard!)