Hmm. Philosophical history probably tells us that your quest is somewhat futile.
Everything we experience has varying degrees of concreteness/abstractness and I think that determines how easy it is to tell if that thing is real.
I don’t think you’re going to come up with some magic criteria that will make abstract realities all-of-sudden obvious. As bitcoin is a little more abstract, it will always be harder to grasp than something tangible.
As far as the relationship, I think the unity between the self and non-self is deeper than the distinction. So that would mean we have a deep connectedness with that which is beyond us.