Abstract: Systems and methods for the maintenance of merchant-stored transaction account data are disclosed. The system may include various merchant systems and issuer systems in communication via a blockchain network. The system provides a process for collaboration between various issuer systems and merchant systems to update and maintain merchant stored transaction account data in response to changes, cancellations, updates, or the like in various stored transaction account.

Abstract: Systems and methods for the maintenance of merchant-stored transaction account data are disclosed. The system may include various merchant systems and issuer systems in communication via a blockchain network. The system provides a process for collaboration between various issuer systems and merchant systems to update and maintain merchant-stored transaction account data in response to changes, cancellations, updates, or the like in various stored transaction account.

Abstract: Systems and methods for the maintenance of merchant-stored transaction account data are disclosed. The system may include various merchant systems and issuer systems in communication via a blockchain network. The system provides a process for collaboration between various issuer systems and merchant systems to update and maintain merchant-stored transaction account data in response to changes, cancellations, updates, or the like in various stored transaction account.

Abstract: A wireless tracking device may have a unique identifier that identifies the item to which it is attached, distinguishing that item from the other items in a secured location. A database may contain information regarding the item attached to the wireless tracking device. A store may be a secured location, and an item may be authorized to leave the store when it is sold. A checkout process may include scanning a machine-readable code associated with the wireless tracking device. Once the checkout is complete and the customer has paid for the item, the database may be updated to disable the alarm for the wireless tracking device. Based on the information in the database, a wireless tracking device detector may determine whether or not to generate an alarm when the wireless tracking device is detected leaving the secured location.

Abstract: A computer-based funds transfer service provides functionality for users to send and receive payments via a web-based user interface. In one embodiment, the web-based user interface provides functionality for a first user of the service to generate and submit a payment request for sending money to, or collecting money from, a second user, who may but need not be registered with the service. The first user may specify the second user by supplying an email address of the second user, which may be used by the service to notify the second user of the payment request. The email message sent to the second user may include a URL that can be accessed by the second user to register with the service (if not already registered) and complete the transaction.