Blockchain Family Deed Certificate for Privacy and Data Security

The rapid development of technology has caused some systems to have changed; most of them in the Industrial Revolution 4.0 era using new methods from various aspects of people's lives. Family Deed Certificate is a family identity that contains data about arrangements, relationships, and the number of family members. A family certificate is an essential thing for every citizen to have. However, related problems that occur are still using conventional systems that cause problems such as loss of family deed, and various manipulations of identity data. Thus, from this problem emerged a solution to guarantee all data and information security using blockchain technology. Blockchain technology is a technology for recording transactions with modern technology, which can only be added but cannot be changed or replaced. Blockchain technology can support various fields such as banking, education, health, and priorities for governance. For this research, this is applied in the field of government, which is a blockchain technology family certificate, various problems in terms of a family certificate that is a copy of a lot of family member data, and editing a deed of change, is very inflexible. With the family certificate system, blockchain technology, data security can be guaranteed so that there is no data falsification and can replace any loss on the family deed. This system uses the literature method that contains and how blockchain works. The Certificate of Family Deed on the blockchain is expected to impact the digital world positively.