Ubufakazi bokushisa (PoB) yindlela eyingqayizivele yokuvumelana esetshenziselwa izinhlelo ze-cryptocurrency ukuqinisekisa ukuthengiselana nokuqinisekisa ukuphepha kwenethiwekhi. Ngokungafani nezindlela zendabuko ezifana nobufakazi bokusebenza, i-PoB idinga ukuthi abahlanganyeli "bashise" ingxenye yezimpawu zabo ngokuzithumela ekhelini elingafinyeleleki. Le nqubo isebenza njengobufakazi bokuzibophezela kwabo ekusekeleni inethiwekhi.
I-PoB isiza ukunciphisa ukukhuphuka kwentengo futhi ikhuthaza ukubamba izinhlamvu zemali isikhathi eside, njengoba ukushisa izimpahla kunciphisa ukuhlinzekwa kwazo okuphelele, kwandisa inani lalezo ezisele. Ngenxa yalokho, uhlelo luthola ukuphepha okwengeziwe nokugqugquzela abahlanganyeli, ukuthuthukisa umnotho jikelele we-cryptocurrency.