As physical currency goes extinct, Palestinians in Gaza have turned to a variety of survival strategies, ranging from trust-based options like barter and informal credit lines between neighbors to, increasingly, alternative systems of exchange like cryptocurrency. “With banknotes damaged, banks gone, and no way to get dollars in or out, I can only do commerce and import necessities using cryptocurrencies,” said Rafat Naim, a food merchant in Gaza who now uses Bitcoin to pay foreign suppliers and get items into the Strip through the Israel-controlled Kerem Abu Salem and, occasionally, Rafah crossings.