In terms of setting, maybe a mix of contemporary urban environment with references to technology like blockchain for verifying the PDF. This adds a layer of realism. The protagonist could be someone with a tech background, which allows them to verify the PDF's authenticity.
In terms of setting, maybe a mix of contemporary urban environment with references to technology like blockchain for verifying the PDF. This adds a layer of realism. The protagonist could be someone with a tech background, which allows them to verify the PDF's authenticity.