A new prototype solution launched by four German companies supports offline Machine-to-Machine (M2M) payments using tokenized deposits. This technology falls under the Industry 4.0 umbrella, aiming to enable businesses to rent industrial machines on-demand without the need for direct purchase. The solution is particularly targeted at payment needs in environments without internet connectivity, such as underground mines or secure facilities. The system integrates two digital wallets and smart cards for transferring funds between machines, facilitating a payment process that does not require manual intervention.