The URI where a resource has been retrieved from. The retrieving agent is usually a software entity, which has done the retrieval from the original source without performing any transcription. Retrieval indicates that this resource has the same representation as the original resource. If the resource has been somewhat transformed, use pav:importedFrom instead. The time of the retrieval should be indicated using pav:retrievedOn. The agent may be indicated with pav:retrievedBy.