[zaphar]

A merkle tree is an excellent way to represent an immutable record. Adding a cryptocurrency does nothing to the system that makes it more immutable. You only need the currency bit if you want to create a financial incentive for the strangers to store your immutable record for you. Which you only really need if you need to send said currency via strangers as a sort of courier. However that comes with it's own set of very real problems.

1. That currency is going to be heavily speculated because it's unregulated by design.

2. That currency is going to be used to bypass regulations that do in fact protect people.

3. That currency will be used to bypass an international system that is designed to allow nations to punish other bad national actors without resorting to war.

If you want to foster anarchy and to create an expectation that any individual is on their own and are actually prevented from getting assistance when they lose everything then a cryptocurrency is an ideal ideological fit. If you want something more balanced then merkle trees might be a useful tool but leave the currency aspect out of it.