Abstract: A system and method for efficient storage and searching of object state data and relationships at a given point of time is disclosed. A server system stores one or more data objects in a database associated with a server system. The server system receives an update to one or more data objects stored in the database. For a respective object, the server system determines one or more differences between the respective original data object and the respective updated data object, creates a change entry for the respective data object, and stores the created change entry in a change database at the server system. The server system receives a data query and searches the one or more change entries stored in the change database to identify the information associated with the received search query. The server system sends the identified information to the client system.