Abstract: Examples provide consumer identity validation (CIV) via last used payment card, improving management of payment infrastructure resources. Examples enable the consumer to more efficiently complete CIV via at least one of a last used account or a last used card. By not requiring consumers to repeatedly go through the entire CIV process at each transaction at the same merchant when using the exact same card they used on a previous visit, excessive and unnecessary strain on the infrastructure is reduced, preventing degradation of the infrastructure. This enables allocating fewer computing resources to CIV, making deployments utilizing low-power or otherwise constrained equipment simpler and easier to maintain. Thus, scaling is enhanced. Individual CIV performance is more efficient, and less computing resources and energy are required across the entire infrastructure.

Abstract: Systems and methods are provided for use in implementing a common domain to provide recognition of users. One example computer-implemented method includes receiving a recognition token associated with a profile and setting, via a browser accessing a common domain, a cookie in the browser where the cookie includes a recognition token. The method also includes, in response to a request for a service, via a user, through the browser accessing an entity domain associated with an entity, accessing the common domain and accessing, via the browser accessing the common domain, the cookie and submitting the cookie to a common domain server. The method further includes receiving, from the common domain server, a federated ID token associated with the recognition token for the service and retrieving, via the browser, the profile associated with the user based on the federated ID token.

Abstract: To provide a quantum motor capable of reliably carrying out rotation. A quantum motor includes a rotor containing a functional material of which quantum characteristic is externally controllable, an N pole permanent magnet and an S pole permanent magnet applying magnetic field to the rotor, and a light source varying the quantum characteristic of the rotor. The light source varies the quantum characteristic of the rotor, so that rotation force is generated in the rotor and the rotor rotates.