Technologies are changing fast; people are not. – Jakob Nielsen
Blockchain is a relatively new technology that many deem is used only for buying Bitcoins. They try to implement it in whatever sphere comes to mind, whether it is fashion, education or healthcare. I would say it is okay — too little time has passed to determine which area of human activity can benefit the most from applying this technology. To understand the practical application of blockchain, we must first define why it appeared, and then study cases when blockchain can make a significant difference.
Note: This article does not explain the blockchain concepts; instead, it focuses on developing a fintech application using this technology. I will explain why fintech can already adopt the blockchain, and most importantly, focus on developing a decentralized application using this technology.