This paper presents two methods for connecting aggregated records to their source institutional metadata profiles. The use case of the Open Language Archives Community (OLAC) application profile is considered and evaluated. The design purpose of OLAC is to share knowledge about language resources. To that end, the OLAC metadata application profile supports the exchange of metadata so that it can be aggregated and serve the needs of end-users. Uniformity in the semantic use of elements within the application profile provides the greatest utility for end-users. Discovering the source of semantic diversity remains a challenge. A first step in providing scholars access to the semantics of aggregated metadata is to publish the local metadata profiles used by institutions.