Casey Anthony -- $10k Bid to Buy Her Silence ... FOREVER

Nobody wants to pay for a Casey Anthony interview ... but there IS someone who's offered to pay $10,000 in order to keep the alleged child murderer SILENT for the rest of her life ... TMZ has learned.

According to new court documents filed in Anthony's bankruptcy case, Casey's camp has received a $10k offer from a man hoping to obtain exclusive rights to Casey's life story.

But the buyer doesn't want to make a movie, put her on TV or write a book -- the docs explain his sole motivation is to "prevent Ms. Anthony or others from publishing or profiting from her story in the future."

The man seeking to purchase the rights is James M. Schober -- and as far as we can tell, he's just a random guy with no ties to Anthony or her family.

The trustee handling the bankruptcy case has been tasked with identifying anything of value that can be used to pay back the $800k Casey owes her creditors.

As far as we can see, there's no way the judge will green-light Schober's plan. First, even Casey doesn't have the exclusive right to her story -- someone could write an unauthorized biography. Besides that ... there's no way a judge would force the sale of thoughts in Casey's head.

It's very weird ... but the bankruptcy trustee is totally into selling Casey's story, because he's asking the court if he can create a bidding war.