29 ms·He's just saying the high cost acts as an inbound filter.by garmaine 6y agoHe's just saying the high cost acts as an inbound filter.gajotron 6y agoSpamfilter prior to HashCash based on Proof of Incomesneak 6y agoI wonder if a messageboard where you had to submit a significantly difficult hashcash proof with every message would be very interesting.deleted 6y ago[deleted]