S4FE is a blockchain-based global database for the registration and identification of stolen and lost items. The database is accessible to everyone and enables users to register and search for property. The types of property include electronic devices, jewelry, personal collections, documents, sports and hobby equipment, vehicles and machines and any other conceivable item representing value to its owner.

The Token, which is based on the established ERC-20 standard, works in conjunction with various Smart Contracts to regulate the network and the incentives to use the network. The applications – the software running on different devices – are the interface between the (largely self- regulating) network and users.