Specific communities or use cases may have additional requirements that are not addressed by the baseline containers defined in ASiC part 1 [2] that can be built using the building blocks defined there or additional ones. The present document references such specific additional use of ASiC and aims to be used for containers that collects together electronic documents including those supported by OCF@ ODF and UCF describing how these container formats can be used to associate digital signatures with any data objects in the container.