that’s what i’m saying: imagine you pay 21 sats to someone with an optimised ASIC(?)/GPU set-up, to do the proof-of-work for your note and then you sign it. 

and a PoW provider can be interacted with in many different ways (doesn’t have to be a lightning payment), which doesn’t make us rely on something niche which most new users aren’t get be set up with. 

 What if you could somehow provably burn 21 sats?