As an old fart, I am not much of a participant in crypto currency but I get your drift and anything that aids in taking back power from those who have exceeded their authority I'm all for.
I have been examining sovereignty for a few years now. Who/or what is sovereign as you suggest comes from a position of power. Sovereignty also has to do with contracts and jurisdiction. I've got a lot of concepts bubbling in my mind and a few of them involve the Holy Roman Church, The British Crown and the US Federal Government. Foremost is that the People of The united States of America defeated the Sovereign British Crown (the King ceded sovereignty) and were supposed to have seized sovereignty for themselves. To mucky the waters, the American People have largely given up their sovereignty to government through sloth and contract fraud. Going back much further, the Holy Roman Church declared itself trustees of the earth and everything on it to hold in trust for Jesus until his return and as Trustees they think they get to manage (or farm) everything. Much more on these concepts from me later on my blog but it is all in the mind.
RE: Sovereign Property