Concept of Blockchain
The concept of Blockchain was introduced to the world in 2008 and its main purpose was to support the creation of the Bitcoin cryptocurrency (NAKAMOTO, 2008). That year, many countries were experiencing a severe financial crisis, which caused economic instability and weakened the world economy. In the midst of this scenario, the Blockchain network came up with the proposal to take financial transactions to the digital environment and make it possible to execute them in a decentralized manner, without the need for intermediation from banks or regulatory institutions. Blockchain consists of distributed and encrypted databases, where they aim to ensure a high level of security through data decentralization (CHICARINO et al. , 2017). All transactions that take place between users are grouped into blocks and these, in turn, are distributed among computers connected to the network. When a new block is generated and validated, it is added to the chain and all others are updated to receiv...