From my own understanding , blockchain is used to support cryptocurrencies and verify transactions made from cryptocurrencies but what are other uses for blockchain technology besides crypto?
Blockchain acts as a public ledger for crypto currencies. It is a decentralized encrypted database whose data can not be altered quite easily. Just serving as a public ledger for crypto currencies is not its only use. Look at the potential of the blockchain technology, we can implement it in various sectors of activities which requires transparency. For example, think about the voting system. If somehow all votes of individual can be recorded on the blockchain, there is no way the voting system can be rigged.