Patent attributes
Implementations of the present disclosure include receiving transaction data for a transaction that is to be executed between a first user and a second user by a computer-implemented P2P payment system, the transaction data including negotiable instrument data provided from a physical negotiable instrument that is provided by the second user and that is to be used in the transaction, the first user being a user of the P2P payment system, and the second user being a non-user of the P2P payment system, processing, the transaction data to execute the transaction, and transmitting a notification to at least one of the first user and the second user, the notification providing information regarding the transaction.