Iphrothokholi yolwazi olungaziwayo (zero knowledge proof) iyindlela ye-cryptography esetshenziselwa ukufakazela iqiniso noma isitatimende ngaphandle kokudalula olunye ulwazi olwengeziwe ngaphandle kwalokho okufakazelwa. Ivumela elinye iqembu ukuthi liqinisekise ubuqiniso besimangalo somunye umuntu ngaphandle kokulidinga ukuthi lidalule noma yiluphi ulwazi olubucayi. Le ndlela isetshenziswa ezindaweni ezahlukahlukene njengokwenza ukubethela (cryptography), i-blockchain, kanye ne-cybersecurity ukuze kuqinisekiswe ubumfihlo nokuvikeleka kwedatha. Ivamise ukusetshenziswa ukufakazela ubunikazi, ubuwena, noma ubuqiniso ngaphandle kokudalula olunye ulwazi olwengeziwe.