Media Storage in the Context of Trusted Services

Abstract

This paper addresses the challenges and solutions of electronic archiving within the context of trusted services as defined by European legislation, particularly the eIDAS regulation. The work outlines the theoretical background of digital preservation, including signature formats, data integrity protocols, and archival models defined by ETSI. A hybrid archiving service is proposed and implemented, integrating MinIO object storage and PostgreSQL metadata management. The modular system is designed for long-term accessibility, document integrity, and regulatory compliance. Test scenarios confirm the system’s effectiveness in handling preservation operations and data retrieval. The paper also presents real implementation details and evaluates the proposed architecture's strengths and limitations in comparison with existing solutions.