Abstract: A system for auditing event data includes an interface and a processor. The interface is configured to receive an audit query request and a client key. The processor is configured to determine whether the audit query request is valid; determine whether a chain of events is stored in an audit store, wherein the chain of events is associated with the audit query request; and in response to determining that the chain of events is stored in the audit store, provide data for the audit query request.

Abstract: A system for committing event data includes an interface and a hardware processor. The interface is configured to receive modified input data for desired events. The hardware processor is configured to retrieve the desired events from a desired aggregate; select requested event to modify from the desired aggregate; replace input data of the requested event with the modified input data to create a modified aggregate; replay events of the modified aggregate N to generate a new state of aggregate N; and provide the new state of aggregate N.

Abstract: A cap is provided for preventing water from coming in contact with a face of a user. Included is an elastic closed loop band and a dish portion. The dish portion includes a resilient sheet with a bottom edge integrally coupled to the closed loop band and extending upwardly and outwardly therefrom with an arcuate vertical cross-section. A peripheral member is integrally coupled to an upper peripheral edge of the sheet of the dish portion. Also included is a water channel having a substantially planar plate with an inboard end coupled to the upper peripheral edge of the sheet of the dish portion and extending upwardly and outwardly therefrom.