I'm afraid it's going to come down to the supremacy clause of the U.S. constitution. Bankruptcy is a Federal proceeding, and all of the various ways people think that pensions and works of art are somehow "protected" are embodied in State laws and the State constitution. Here you go, kids:

"This Constitution, and the Laws of the United States which shall be made in pursuance thereof; and all treaties made, or which shall be made, under the authority of the United States, shall be the supreme law of the land; and the judges in every state shall be bound thereby, anything in the constitution or laws of any state to the contrary notwithstanding."