HAL Search API — SORBONNE-UNIVERSITE collection
The HAL Solr search API scoped to Sorbonne University's collection at https://api.archives-ouvertes.fr/search/SORBONNE-UNIVERSITE/, which returns 326,851 records (HTTP 200, application/json) with faceting and field selection over the university's affiliated publications; 211,514 of those records carry ORCID identifiers in authORCIDIdExt_s. Tenant, for the same reason as the OAI endpoint: the collection is Sorbonne's, the Solr index and the API contract are CCSD's. The previous profile pointed at the generic /search/ base URL shared by every French institution.