US Patent 11682012 Contactless delivery systems and methods

A contactless delivery system is provided. The contactless delivery system includes a contactless card storing a cryptogram containing a unique identifier associated with a user account. After entry into a communication field, the contactless card is configured to transmit the cryptogram to a server. Upon receipt of the cryptogram, the server is configured to validate and decrypt the cryptogram, and extract the unique identifier. The server can query a database for an identity of the user account using the unique identifier, generate a digital signature based on the identity of the user account, and transmit a verification notification including the identity of the user account and the digital signature.