[meowster]

I've heard that such debt contracts have been retroactively-changed to be paid in gold instead of the hyper-inflated currency.

I cannot find evidence to backup such claims, has anyone else heard of this or have an expample?

And like another user suggested, what's to prevent the government from passing a law that changes debt contracts?

[guessbest]

>And like another user suggested, what's to prevent the government from passing a law that changes debt contracts?

In the USA it will be lobbyists.

[pbak]

So they will not "prevent" the government, they will cajole and corrupt people in the legislative and executive branches so it doesn't get changed.

[mandelbrotwurst]

Prevention doesn’t imply anything about its means.