{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T10:49:30Z","timestamp":1782730170068,"version":"3.54.5"},"reference-count":31,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T00:00:00Z","timestamp":1782691200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Union","doi-asserted-by":"publisher","award":["101057527"],"award-info":[{"award-number":["101057527"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"award":["101057527"],"award-info":[{"award-number":["101057527"]}],"id":[{"id":"https:\/\/ror.org\/019w4f821","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Network"],"abstract":"<jats:p>Secure and trustworthy data exchange across distributed data sources remains a major challenge in the health domain, where strict legal, regulatory, and privacy requirements must be satisfied. Data space technologies provide a promising approach to enabling interoperable and sovereign data sharing among diverse stakeholders while preserving data ownership and regulatory compliance. The NextGEM Innovation and Knowledge Hub (NIKH) was developed as a collaborative ecosystem for FAIR data access and evidence-based health risk assessment. This paper describes the NIKH Data Space (NIKH-DS), the underlying network provisioning platform within NIKH that enables secure data exchange in a health data space environment. The work outlines the key requirements, intended uses, and core implemented functionalities necessary for enabling secure network-provisioned data sharing among distributed data locations. Based on these requirements, a prototype architectural framework is proposed that integrates secure networking and interoperable services. The implementation of the individual components is described, including the data space controller, access control mechanisms, and a user-oriented dashboard that enables data visualization and interaction with distributed data sources. The NIKH-DS platform is validated through a set of case studies that demonstrate the feasibility and effectiveness of the platform in supporting secure, interoperable, and Findable, Accessible, Interoperable and Reusable (FAIR)-compliant health data sharing and risk assessment for the investigation of potential health effects of radio-frequency electromagnetic fields (EMF).<\/jats:p>","DOI":"10.3390\/network6030043","type":"journal-article","created":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T08:45:20Z","timestamp":1782722720000},"page":"43","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["NIKH-DS: A Network Provisioning Platform for Data Exchange in the Health Data Space"],"prefix":"10.3390","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3489-7763","authenticated-orcid":false,"given":"Nikolaos","family":"Petroulakis","sequence":"first","affiliation":[{"name":"Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), 70013 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3166-9716","authenticated-orcid":false,"given":"Alexandros","family":"Kornilakis","sequence":"additional","affiliation":[{"name":"Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), 70013 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0501-5845","authenticated-orcid":false,"given":"Panos","family":"Chatziadam","sequence":"additional","affiliation":[{"name":"Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), 70013 Heraklion, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0249-170X","authenticated-orcid":false,"given":"Vasileios","family":"Theodorou","sequence":"additional","affiliation":[{"name":"Intracom Telecom, 19002 Peania, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicolas","family":"Louca","sequence":"additional","affiliation":[{"name":"eBOS Technologies Limited, Nicosia 2322, Cyprus"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6722-0373","authenticated-orcid":false,"given":"Stefanos","family":"Fafalios","sequence":"additional","affiliation":[{"name":"Sphynx Analytics Limited, Nicosia 2012, Cyprus"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Petros","family":"Zervoudakis","sequence":"additional","affiliation":[{"name":"Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH-ICS), 70013 Heraklion, Greece"},{"name":"Netcompany, 15125 Maroussi, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitrios","family":"Laskaratos","sequence":"additional","affiliation":[{"name":"Intracom Telecom, 19002 Peania, Greece"},{"name":"Icon Platforns SA, 14235 Filothei, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-6557-3946","authenticated-orcid":false,"given":"Maria Eleftheria","family":"Vlontzou","sequence":"additional","affiliation":[{"name":"Intracom Telecom, 19002 Peania, Greece"},{"name":"Faculty of Electrical and Computer Engineering, National Technical University of Athens, 10682 Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0500-7784","authenticated-orcid":false,"given":"Eleni","family":"Zarogianni","sequence":"additional","affiliation":[{"name":"Intracom Telecom, 19002 Peania, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,6,29]]},"reference":[{"key":"ref_1","unstructured":"European Commission (2026, June 17). 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