Nanjing, a city in China, relies on block chain technology for the correct issue of consumer vouchers. This is part of an economic stimulus package to mitigate the economic impact of the COVID-19 pandemic and bring new momentum to the economy. Nanjing is the capital of the Jiangsu province in eastern China and thus one of the country’s economically strongest provinces. Vouchers have been issued to the inhabitants since mid-June. The volume is 380 million yuan, which corresponds to almost 54 million US dollars. The vouchers can be redeemed for consumer goods and services such as food, transportation or electrical goods.