This is not literally from 2017. It’s a preprint; the 2017 bit in the footer is from the default article template. Per the footer, it’s actually from 2023. You

This is not literally from 2017. It’s a preprint; the 2017 bit in the footer is from the default article template. Per the footer, it’s actually from 2023. You can tell because the abstract mentions SBF and Madoff in the same sentence!