Japan Open Chain (JOC) is a L1 public blockchain optimized for business, with a practical balance between decentralization and scalability. JOC adopts the “Proof of Authority (PoA)” consensus algorithm, which ensures sufficient reliability and excellent scalability as long as it is operated by trusted validators. Furthermore, JOC is an Ethereum-compatible public chain operating under Japanese law, which is known for political and legal stability on a global scale. The validators of JOC are composed of highly trusted companies and organizations in Japan, including Sony Group, NTT Group, Dentsu Group, and universities, ensuring compliance with Japanese laws and regulations. This significantly mitigates risks such as hacking and chain forks, providing high levels of security, stability, and trustworthiness. For those in the financial and business sectors seeking to use an Ethereum-compatible chain, JOC presents a safe option.