Digital archives are constantly being cross-referenced. An "updated" entry on a database like Indexxx means that previously "lost" media, rare magazine scans, or obscure early-career appearances have been added to her profile.
Seeing the evolution of her career from her debut to her retirement. indexxx sumiko smile updated
Identifying which major labels (such as Soft On Demand or Alice Japan) she worked with most frequently. Digital archives are constantly being cross-referenced