Paper Title
The Effectiveness Analysis of a Block Chain-Based Online Learning Platform for Vietnamese Workers

Abstract
Block chain technology, which was originally developed for value transfer, now has various applications in healthcare, finance, insurance, and other fields. However, there isstill little known about block chain's potential in education. Because of advancements in Internet technology, online education, a relatively new educational format, has grown in popularity. However, problems with course credibility, certification, student privacy, and course retention persist. Given the COVID-19 pandemic and the growing demand for online and automated learning solutions, this article introduces and analyzes the effectiveness of VinaEdu, a block chain-based solution for not only addressing critical challenges in virtual learning but also boosting course retention, with a focus on Vietnam. Keywords - Block Chain, Online Education, Reward, Learning Motivation, Job Skills.