WFP has the largest blockchain projects focused on cash-based assistance: (a) It promotes a private EVM net since 2017 as a coordination mechanism to connect orgs providing humanitarian assistance (size: 4M ppl/month); (b) It is also scaling cash assistance in Afghanistan backed by public blockchain/100k people. Come to see some of our challenges and learnings of the last years consolidated in a model and engage to shape the future of this field.