The "電子認証 マイナサイン" app offers a convenient way to verify identity and provide electronic signatures using the My Number card. It seamlessly integrates with various local government services, eliminating the need for complex account setups.

With features like electronic signature functionality, users can input a password for the signature certificate, scan their My Number card, and utilize public personal authentication services for electronic authentication and signatures. Additionally, the app allows users to retrieve card surface information by entering a 4-digit password and scanning their My Number card, enabling them to confirm their identity using the acquired information. Please note that a smartphone compatible with the My Number card is required for these functions.