Blockchain is a series of records known as blocks. Such blocks are continuously growing records that are combined and secured using encrypted technology.
Blockchains are the most secured by construction and can be stated as a distributed computing system with High Byzantine Fault Tolerance: That means it tolerates the class of failures known as Byzantine Generals.
Therefore Decentralized Harmony is therefore achieved with the Blockchain Technology. As a result, the blockchains are most convenient for the recording of activities such as Medical data, Events, Government data, Identity Management, Transaction Processing, Food and other items such as Traceability etc.