Improving Data Security, Interoperability, and Veracity using Blockchain for One Data Governance, Case Study of Local Tax Big Data

Presidential Decree on One Data Indonesia is intended to govern data produced by central agencies and local agencies to support planning, implementation, evaluation, and development control, including one of them is the local tax. It is a Big Data development contains a lot of data from the central and local government of Indonesia. The defining factors of data collection on Big Data are volume, velocity, variety, and veracity. Volume and velocity state how much and how soon the data is generated. Variety states the condition of the data is structured or not, while veracity speaks the level of trust in data validity. Data veracity is a big problem on Big Data Analytics and using data integrity protection feature and other methods, Blockchain can offer solutions to improve data interoperability, security, and veracity.