If folks really want to make sure they come back from the dead, they might also think about setting up proper incentives for performing the potentially highly laborious process that resurrection might entail even 100+ years from now. It might be helpful to place a sort of back-to-life bounty on yourself, to be held in escrow, and only to be paid out upon successful resurrection. The bigger the bounty, the higher your…
This would be difficult with the current legal system in most of the United States because of the rule against perpetuities[0]. Of course, jurisdiction shopping makes this easier in certain locales. [0] https://en.wikipedia.org/wiki/Rule_against_perpetuities
I observe there's a certain prejudice, in that law is written by the living.
The other ideas of cryptocurrency/escrow/private keys would escape the law... until you tried to spend it legally. You might as well bury gold in a chest.