Modular Blockchain Implementation in Intensive Medicine

Abstract

Blockchain has its focus around sharing, distribution and encryption. Particularly, the newer blockchain implementations revolve around the implementation of smart-contracts, second-layer systems and permissioned blockchains. This type of potential has generated a lot of attention towards blockchain, thus making it a great candidate technology within healthcare. In this paper, the role of permissioned and permissionless blockchain and its possible implementations will be discussed and compared as well as the process in which a blockchain network agrees whether a transaction is valid or not, maintaining consistency in ledger synchronization, or in other words, Consensus Algorithms. Several should be considered as viable and many can be used by both permissioned and permissionless blockchain frameworks. As chosen as part of this implementation Practical Byzantine Fault Tolerance (Pbft) is presented and described. This paper presents a solution, as part of the Intelligence Decision Support Systems for Intensive Medicine (ICDS4IM) project, which objective is to increase veracity and value to data from vital sensors and monitors by assuring its immutability and oversee; and also privacy and accountability for inadequate data management.