The present invention provides a computer storage server implemented method for generating attribute streams. The storage server receives a request from an application to write data to at least one storage object, the request having a request type. The storage server then updates an attribute stream with metadata associated with the at least one storage object. The storage server also updates the attribute stream with the at least one checksum, such that the attribute stream is associated with the at least one storage object. The storage server determines the request type to be one selected from among the group consisting of an email type, a file transfer protocol type, and a hypertext transfer protocol type. Responsive to a determination that the request type is among one selected from the group consisting of an email type, a file transfer protocol type, and a hypertext transfer protocol type, the storage server verifies the application. Based on the determination of the request type, the storage server then updates the attribute stream by applying a filter among one selected from the group consisting of an email attribute stream filter, file transfer protocol attribute stream filter and a hypertext transfer protocol attribute stream filter.