The Memento Depot links of DBpedia do not seem to work.
For example when querying curl -I -H "Accept: application/rdf+xml" https://dbpedia.org/resource/DBpedia the link http://dbpedia.mementodepot.org/timegate/http://dbpedia.org/resource/DBpedia is presented, but when trying to go there (we first get a redirect to http://dbpedia.mementodepot.org/timegate/http://dbpedia.org/data/DBpedia, but then) we receive only a 502 Bad Gateway.