About "Karst", or rather, the information shock from an alien civilization, was just too overwhelming; in fact, people who had arrived in the previous few hours all refused to believe it was true.
Yet they also greatly acknowledged the extreme extraordinariness of New Yuan itself, and after receiving guidance about Guo Xiao and GW180509, they rapidly mobilized the information network to verify these contents.
Among the items in the briefcase, Guo Xiao's "legacy" passed preliminary assessment by several intelligence experts, but forging items from not-so-distant times isn't particularly difficult, and it's even harder to verify such features as handwriting.
Forensic identification is an extremely difficult job, as without definitive corroborative evidence, reliance on a single technical method cannot serve as absolute proof.
