M.5-8 Persistent identifiers are provided on the service’s website and in the exported metadata as primary identifiers in the form of an operable URL.

• Short Title: M.5-8 Persistent identifiers are provided on the service’s website and in the exported metadata as primary identifiers in the form of an operable URL.
• Source Documnent: DINI Certificate for Open Access Publication Services 2019
• Source Document Link: https://doi.org/10.18452/21759
• Publishing Organisation: DINI Working Group "Electronic Publishing"
• Date of Publication: 2020-08-21
• Topic: Interlinking/ interoperability
• Keywords: PID, identifier
• Addressed Stakeholders: data service providers
• Full Text: This requires a resolving service’s URL to be added to the persistent identifier. (e.g. https://doi.org/10.18452/1503 or https://nbn-resol-ving.org/urn:nbn:de:kobv:11-100239432). As for the metadata export, see also Criterion 6 – Indexing and Inter-faces, section 2.6, Minimum Requirement M.6-6. The persistent identifier is made available in human-readable and machine-readable form on the website, and in machine-readable form via OAI (Dublin Core element identifier).