US Patent 11475443 Auditable system for event tracking

A workflow management system can be used to determine whether a set of transaction events have been properly processed according to a business process rule. A business process rule includes a set of transaction events setup in accordance with a government regulation or an internal company process. An event data may include information associated with a transaction event. A workflow management system includes a workflow management server that receives cryptographically signed transaction event data from one or more additional servers so that the workflow management server can determine whether the received transaction event data comprises a complete or an incomplete transaction.