Since Rothbard would be 100 now and it fits the theme in his view the medium of exchange function comes before the store of value function. “A commodity that is accepted in barter becomes a medium of exchange. Once that has happened, people begin to express all other prices in terms of it – the unit‑of‑account function. The store‑of‑value function is a consequence of the willingness to hold the medium for future exchange.” If we follow that thought bitcoin is basically trying to saddle the horse from the back.