Article IV, Section 1 says that the Congress may prescribe the general laws to prove state's acts.
There was not even one assertion of that in any of the state ratification papers. Lincoln made it public in the first inaugural that he would hold the forts in Florida and Charleston for purposes of taxation, while not revealing to the public the ongoing offers of the Confederacy to compensate the Federal government for all the facilities in Southern states. And even today, there are such people as you that continue with this false representation for your own rhetorical self promotion.
There's nothing false about reading Article IV.
Again, you assert a fallacy. The "stolen" property you refer to was on loan to or owned by the Federal government, not states. New York, Pennsylvania, Ohio, Ill., etc., did not have ownership of anything in any of the seceding states.
Not only real estate, but arms.
Beginning in December, 1860, and continuing until April of 1861, several attempts were made to arrange for compensation, and in view of your past posts, you know that.
They should've followed Artcle IV and worked it out in the Congress before seceding.
Continuing to assert that the South was stealing requires documentation of fiduciary failure of the Confederacy, but the exact opposite was true in 1861.
If they didn't steal, why were there negotiations to return property?
Again, fallacy in assertion, and not supported by any law.
Article IV is law and it is clear.