The evolution and rapid growth of AI-generated content is, as if in mirror image, increasing the importance of authentic materials created by humans. It is imperative to digitally archive such authentic human-derived materials and keep them "in stock" in society. Furthermore, in the post-corona era, the importance of communication in physical space as well as on the Web is increasing. Exhibiting digital archives in physical space creates a rich "flow" that is unique to real space. As this "flow" permeates society as a whole beyond the exhibition space, valuable knowledge that has been "stocked" will be passed on to the future. This special issue discusses such practices.

This study explores a digital archive with an interface connecting the past and the present about Great Kanto Earthquake. The objective is to shift the perception of the earthquake from a historical event to a continuum connecting the past and present. Implemented through screen projection VR, the digital archive visualizes seismic intensity data, the spread of fires, survivor experiences, Shibusawa Eiichi's evacuation route, disaster photographs, and post-recovery economic data on a digital globe. The practical exhibition of this digital archive provides an experiential understanding that the past earthquake is an event that occurred in the place where we currently live.

Japan has been repeatedly damaged by natural disasters such as earthquakes, tsunamis, volcanic eruptions, and typhoons since ancient times. We have observed nature to understand natural phenomena and developed research and scientific technology to protect our lives. Behind this is a large amount of data that has been left behind. How should we exhibit the materials so that we will not forget the disaster and use them for disaster prevention and mitigation measures in the future? In this paper, the 100th centennial exhibition for the 1923 Great Kanto Earthquake held at the National Museum of Nature and Science in 2023, which utilized digital content, will be introduced as an example.

The purpose of this study is to suggest a method for fostering the literacy to create "questions" about local history and culture, and to form one's own opinions while expanding one's viewpoints and perspectives. To achieve this purpose, we designed a learning scenario utilizing the "Midokoro cube," a multidimensional visualization tool for digital resources, as an exhibition space, and implemented it in elementary school and local events in several municipalities. The results suggest that the method is effective in fostering the ability of learners to form their own opinions by asking questions about local history and culture and expanding their perspectives and ways of thinking. It was also indicated that learners bridged real and digital space, and developed a wish to transmit the attractiveness of their hometown to others and to inherit it to the future.

This project is an attempt to connect to the future by utilizing digital archives of past war-damage photographs. 3D scanner technology is used to recreate the avatar of the experiencer and have it walk within the war-damage photographs. This provides an immersive experience of past photographs and conveys a real sense of war, especially to new generations. Users walk as avatars within the past photos as if in a time machine, and feel a strong sense of realism. Through this new experience, users will be interested in more than just viewing the photos; they will directly feel the conditions and environment of the time and gain a deeper understanding of history. The Avatar Frame System, which enables users to walk within war-damaged photographs, is an ongoing project that provides new experiences through the fusion of digital archives and new technologies.

The Teikoku Databank Historical Museum is a corporate museum that stores historical corporate information that Teikoku Databank, Ltd. has collected through credit research since 1900. In recent years, we have been digitizing its materials and attempting to introduce new digital archives through special exhibitions in addition to existing digital contents in its exhibits. The "Bankrupt Companies Database," which links corporate data with image data, and the "Teikoku Ginko Kaisha Yoroku" contained in the corporate data books have expanded the range of exhibits by linking them with panels and visualizing them. It will be an issue to understand the characteristics of the materials and explore the possibilities of their utilization.

Digital archives are now widely used by MLA and academia, and secondary use and derivative works are expanding as digital archives can now be enjoyed through public databases. It is also used for exhibitions and is useful for storing and transmitting information. Digital archives can create a variety of content and are highly compatible with new forms of expression. While unraveling case studies, we will think about reality and what should be important in the future.

The Society for Digital Archives of Japan has adopted the "Digital Archive Charter" and has also published "Policy Recommendations for a Digital Onnagata Society 2022," a policy proposal to materialize the idea stated in the Charter. This policy proposal is not only published on the official website of the society, but various efforts have been made to reflect its contents in government policies. This paper will discuss the significance and background of these efforts to incorporate the policy recommendations into the rulemaking process in the country, which has become a permanent process by law and custom, and what efforts have been made to incorporate the policy recommendations into this process.