Paper Title
Blockchain Web Application Design for Legal Companies in Indonesia

Abstract
Blockchain was born from the idea to solve the problems posed by the need not to use third parties in a transaction. Issues related to the relationship between blockchain and legal firms are important issues. a carefully designed and closed system using open source applications like Angular and Firebase where later only operator privileged applications are allowed to make entries. public authorities and corporate lawyers to devote some of their time to getting to know this blockchain technology, at least as the future of law firms. As a lawyer, you are required to be able to change the conventional system with the concept of smart contracts being adopted into the blockchain system. A challenge in the development of a legal firm system where one must choose the best consensus according to needs. Apart from that, system design must also consider the performance and security aspects of the system itself. So we need a system with adequate security (maintaining confidentiality), easy to operate, and good application performance. Keyword - Blockchain, Consensus, Angular, Firebase, Law Firm