If his papers are fine then why did he not disclose his funding source?
Prove that he didnt. Currently, all there are are claims that he didn't under the premise that sometimes he is funded by X but in some papers he doesnt say that he is funded by X.
25 years ago I collected unemployment or a few months, which is why I am now disclosing that this post was funded by unemployment insurance. Also, its funded by the lottery administration because once I had a $4 winner. Not to omit anything, my current employer is also funding this post, and lets not forget that my friend paid for dinner the other night.
Sure, none of that actually funded this post, but then apparently you dont have to prove that they did in order to damn me.