SouSou’s Digital Certificate
2025-07-04 07:38:36

Introducing SouSou’s Digital Death Certification: A New Era for End-of-Life Planning

SouSou Unveils Digital Death Certification Feature



In a significant advancement for end-of-life planning, SouSou Co., Ltd., headquartered in Arakawa, Tokyo, announced the official launch of its new feature, Digital Death Certification, set to begin on July 3, 2025. As an evolving end-of-life platform, SouSou has previously offered functions like Ending Notes, helping users document their preferences and assure safe communication with their families.

A Groundbreaking Approach



The Digital Death Certification employs an unprecedented method whereby the platform autonomously detects potential mortality based on various indicators. Rather than relying on users to periodically log in or necessitating family members to submit death certificates, this new feature actively monitors the user’s status. If a potential death is detected, the system sends a confirmation request to a designated administrator chosen during the registration process.

A Response to Societal Challenges



With the growing challenges of an aging population, increasing solitary households, and the rising trend of nuclear families, effectively conveying posthumous wishes and procedures without burdening family members is paramount. Existing digital services primarily rely on cumbersome and error-prone verification methods. In this backdrop, SouSou's Digital Death Certification aims to automate the detection of possible passing, ultimately simplifying the process for families left behind.

Utilizing MyNumber Cards for Enhanced Reliability



The platform's new feature leverages myFintech Co., Ltd.’s Current Status Confirmation Service to verify the validity of a user's myNumber card’s electronic certificate daily. If the certificate is found to have expired, the system auto-generates a verification request to the previously designated administrator. To finalize death verification, a legally binding digital signature (provided through myFintech’s myDigital Certificate Service) using Face ID will be executed, solidifying the death confirmation process.

Two Methods of Death Certification



SouSou is committed to meeting user needs by offering two solutions for death certification. Beyond the newly introduced A. Digital Death Certification, the platform will continue to provide the traditional B. Document Submission Certification. This dual approach offers flexibility to users in choosing their preferred method for confirming death.

For more details on SouSou’s death certification methods, visit their official guide.

Vision for the Future



SouSou envisions a society where everyone can conclude their lives with dignity and ease. The aim is to create a fully online ending platform that manages everything from intent registration to notifications and procedures after death. The launch of the Digital Death Certification feature has received applause from both industry insiders and consumers alike. With recent funding acquired from a high-synergy CVC fund and business entities in June 2025, SouSou plans to enhance services further, integrating external services for data sharing and ensuring complete online processing of posthumous procedures.

To learn more about the funding acquisition, check here.

What is SouSou?



SouSou represents a next-generation digital end-of-life service that utilizes myNumber cards. Offering a comprehensive array of necessary end-of-life management features at no application cost, SouSou provides a seamless service experience with unique attributes: 1. Ensured user identity and authenticity, 2. Digitalized death certification, and 3. Integration with external data services. Future collaborations with various partner companies will enhance the automation and simplification of various posthumous procedures.

For more information on SouSou’s services, you can visit their service page.

About SouSou Co., Ltd.



Founded in August 2022 with the mission to


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