A guy who quite likely stole billions of dollars can't prove he donated money to Republicans and we should just trust him?

SBF's claim is that the Republican donations were "dark", meaning is funneled through super PACs. These are famously not public record. He states he did this to hide them from the media.

Public record showed that he is #2 individual donor to Democrats. He claimed that he also donated a similar amount to Repulicans via "dark channel" or something like that, so no record, let alone public.

Please provide them. I haven't seen anything that shows equal donations.

This is the problem with a 501(c). There is no public record. The bill which would have made those records public couldn't get passed in the Senate.

https://www.washingtonpost.com/politics/2022/09/22/senate-re...

I haven't been able to locate any public record of them. I think you may be confusing the donations that the #2 in charge made to republicans.