The National Health Insurance Service (NHIS) is leveraging Aergo Enterprise to transform the public service paradigm. The blockchain-based Time Stamping Authority (TSA) service adopted by NHIS processes 400,000 transactions daily, with a peak capacity of up to 700,000 transactions. When the new long-term care application is launched, the system is expected to handle over 1.8 million transactions per day, making it one of the most extensive enterprise blockchain services in actual operation.

NHIS is leveraging blockchain technology to advance its TSA project, which authenticates and issues insurance contracts and essential documents. This initiative seeks to combat document forgery, boost reliability, enhance public service transparency, and optimize the use of electronic records.

The project was developed in collaboration with Blocko, utilizing the Aergo TSA framework. The system integrates seamlessly with existing IT infrastructure without downtime, ensuring continuous and efficient blockchain adoption. This successful implementation sets a precedent for public institutions adopting blockchain technology, potentially serving as a benchmark for other organizations and enterprises.

How Aergo TSA Works

Aergo TSA is a time-stamping service based on the Aergo enterprise platform. When an electronic document is issued, NHIS requests a timestamp for the original document and registers it on an integrated server. The system then generates a timestamp token, transaction details, and a response message and stores both copies and original records in an electronic archive. Users can view the original document, check the timestamp issuance history, and verify its authenticity.

Key Success Factors

The adoption of the NHIS Aergo-based TSA is regarded as one of the most successful applications of blockchain technology in the public sector. Beyond its technological advancements, the project contributes to environmental sustainability, improved user convenience, and cost savings, significantly enhancing document management efficiency and reliability.

The key factors driving this success include:

• Integration with Legacy Systems: The blockchain solution was seamlessly integrated with existing IT infrastructure, minimizing implementation time and costs. A zero-downtime approach ensured that existing services continued without disruption.
• Real-World Transaction Processing: The system demonstrated stable operation in a real-world enterprise environment, handling large-scale data transactions efficiently.
• Maintenance & Scalability: The blockchain system was designed for long-term maintenance and security updates, ensuring continued reliability and security.

The NHIS blockchain project successfully meets these criteria, establishing itself as a model case for blockchain adoption in public institutions.

https://medium.com/aergo/koreas-national-health-insurance-service-adopts-blockchain-based-tsa-leading-public-service-b5cb9b057b88