it could be. but if it was one today, your 20 bsv would no…

Store of Value = Proof of Work.
Proof of Work ≠ Store of Value.
The proven work stored gives intrinsic value insofar as record of effort &/or duration, but that in itself doesn't make the work valuable.
The capacity for storage does not equate value. Capacitance is a range, not that which to be measured, same as capacity. Though one may make the case that a capacitor is valuable that is contextual because it's value is relative to its system dynamics