All,The links in that important announcement have been fixed i.e., they no longer return 403's.
Kingsley On 3/27/26 3:32 PM, Kingsley Idehen via Wikidata wrote:
Hi Everyone,We are preparing a new open-source edition of Virtuoso that introduces a feature specifically designed to serve this community.This feature provides syntax-level compatibility with the SERVICE wikibase:label extension, enabling queries written for Wikidata’s Wikidata Query Service to run seamlessly on Virtuoso.In practical terms, this means developers can reuse existing SPARQL queries that rely on SERVICE wikibase:label—without needing to rewrite label-handling logic—while benefiting from Virtuoso’s performance, sophistication, and deployment flexibility.*Example Query:* PREFIX wikibase: <http://wikiba.se/ontology#> PREFIX bd: <http://www.bigdata.com/rdf#> PREFIX mwapi: <http://www.mediawiki.org/ontology#API/> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT ?entity ?label WHERE { SERVICE wikibase:mwapi { bd:serviceParam wikibase:api "Search" . bd:serviceParam mwapi:srsearch "machine learning" . ?entity wikibase:apiOutput mwapi:title . } # Fetch label from Wikidata (requires federated query or local data) OPTIONAL { ?entity rdfs:label ?label . FILTER(LANG(?label) = "en") } } LIMIT 5 Live Query Results Page Links[1] Query Definition <https://wikidata.demo.openlinksw.com/sparql?default-graph-uri=urn%3Awikidata%3Alatest&qtxt=PREFIX%20wikibase%3A%20%3Chttp%3A%2F%2Fwikiba.se%2Fontology%23%3E%0APREFIX%20bd%3A%20%3Chttp%3A%2F%2Fwww.bigdata.com%2Frdf%23%3E%0APREFIX%20mwapi%3A%20%3Chttp%3A%2F%2Fwww.mediawiki.org%2Fontology%23API%2F%3E%0APREFIX%20rdfs%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%0A%0ASELECT%20%3Fentity%20%3Flabel%20WHERE%20%7B%0A%20%20%20%20SERVICE%20wikibase%3Amwapi%20%7B%0A%20%20%20%20%20%20%20%20bd%3AserviceParam%20wikibase%3Aapi%20%22Search%22%20.%0A%20%20%20%20%20%20%20%20bd%3AserviceParam%20mwapi%3Asrsearch%20%22machine%20learning%22%20.%0A%20%20%20%20%20%20%20%20%3Fentity%20wikibase%3AapiOutput%20mwapi%3Atitle%20.%0A%20%20%20%20%7D%0A%0A%20%20%20%20%23%20Fetch%20label%20from%20Wikidata%20(requires%20federated%20query%20or%20local%20data)%0A%20%20%20%20OPTIONAL%20%7B%20%3Fentity%20rdfs%3Alabel%20%3Flabel%20.%20FILTER(LANG(%3Flabel)%20%3D%20%22en%22)%20%7D%0A%7D%20LIMIT%205&format=text%2Fhtml&timeout=30000&signal_void=on&signal_unconnected=on>[2] Query Results Page <https://wikidata.demo.openlinksw.com/sparql?default-graph-uri=urn%3Awikidata%3Alatest&query=PREFIX+wikibase%3A+%3Chttp%3A%2F%2Fwikiba.se%2Fontology%23%3E%0D%0APREFIX+bd%3A+%3Chttp%3A%2F%2Fwww.bigdata.com%2Frdf%23%3E%0D%0APREFIX+mwapi%3A+%3Chttp%3A%2F%2Fwww.mediawiki.org%2Fontology%23API%2F%3E%0D%0APREFIX+rdfs%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2000%2F01%2Frdf-schema%23%3E%0D%0A%0D%0ASELECT+%3Fentity+%3Flabel+WHERE+%7B%0D%0A++++SERVICE+wikibase%3Amwapi+%7B%0D%0A++++++++bd%3AserviceParam+wikibase%3Aapi+%22Search%22+.%0D%0A++++++++bd%3AserviceParam+mwapi%3Asrsearch+%22machine+learning%22+.%0D%0A++++++++%3Fentity+wikibase%3AapiOutput+mwapi%3Atitle+.%0D%0A++++%7D%0D%0A%0D%0A++++%23+Fetch+label+from+Wikidata+%28requires+federated+query+or+local+data%29%0D%0A++++OPTIONAL+%7B+%3Fentity+rdfs%3Alabel+%3Flabel+.+FILTER%28LANG%28%3Flabel%29+%3D+%22en%22%29+%7D%0D%0A%7D+LIMIT+5%0D%0A&format=text%2Fhtml&timeout=30000&signal_void=on&signal_unconnected=on>
-- Regards, Kingsley Idehen Founder & CEO OpenLink Software Home Page:http://www.openlinksw.com Community Support:https://community.openlinksw.com Social Media: LinkedIn:http://www.linkedin.com/in/kidehen Twitter :https://twitter.com/kidehen
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