BLOCKCHAIN Network
The Blockchain network seeks to ensure security by decentralizing data. They are distributed, encrypted and shared databases that store information about all transactions that occur between network users (CHICARINO et al. , 2017). All nodes in the network must contain the same information; in this way, when a new block is inserted, all nodes are updated to receive the new information and thus contain the same content again. The blocks are structures that store the information contained in the network and are organized in a chain (WATTERS, 2016). Each block holds a reference to its previous one; in this way, it is possible to go through the entire chain until reaching block zero, also called block genesis. This block is coded by the software when the network is created and serves as the initial state of the system, keeping information about how the network should behave during its operation. Due to the chaining of the blocks, it is not possible for one of them to be changed without...