Collection: OpenCitations Meta
Endpoint: https://sparql.opencitations.net/meta
Date and Time: 05/10/2026, 09:45:42
Total Running Time: 1165.249 seconds
| Label | Issue Description | Test result | Count of involved resources | Running Time (seconds) | Raised Error |
|---|---|---|---|---|---|
| duplicate_br | There is at least one case of multiple fabio:Expression entities sharing the same ID value for any given scheme (e.g. the same DOI is linked to 2 separate journal articles, as in https://opencitations.net/meta/api/v1/metadata/omid:br/061103623233 and https://opencitations.net/meta/api/v1/metadata/omid:br/061602208852). | - | - | 300.573 | HTTP Error 503: Service Unavailable |
| multiple_id_values | There are more than 10,000 BRs that have 2 or more values for at least one of their supported ID schemes (e.g. 2 DOIs for a single journal article, as in https://opencitations.net/meta/api/v1/metadata/omid:br/06120410820). | - | - | 300.733 | HTTP Error 503: Service Unavailable |
| duplicate_agent | There is at least one case of multiple foaf:Agent entities sharing the same ID value for any given scheme (e.g. different authors have the same ORCID, as for the authors of https://opencitations.net/meta/api/v1/metadata/omid:br/061702782637). | - | - | 300.655 | HTTP Error 503: Service Unavailable |
| multiple_manifestations | There are more than 15 BRs that are embodied in multiple fabio:Manifestation entities (e.g. https://opencitations.net/meta/br/062503856318.html). | Passed | - | 34.542 | - |
| br_in_multiple_venues | There are more than 1,000 BRs that (wrongly) appear to be contained in different venues (e.g. the journal article described at https://test.opencitations.net/meta/api/v1/metadata/omid:br/0603904064). | Failed | - | 228.746 | - |
Collection: OpenCitations Index
Endpoint: https://sparql.opencitations.net/index
Date and Time: 05/10/2026, 10:05:07
Total Running Time: 0.808 seconds
| Label | Issue Description | Test result | Count of involved resources | Running Time (seconds) | Raised Error |
|---|---|---|---|---|---|
| circular_citation | The same entity appears as both citing and cited entity for the same Citation. | Failed | - | 0.807 | - |