Archiving Policy

The Pakistan Journal of Clinical Research (PJCR) enforces a comprehensive digital preservation framework to guarantee the long-term security, permanent global accessibility, and absolute integrity of all published biomedical literature. To protect research content from potential server migration, hardware degradation, or operational downtime, the journal maintains active integrations with decentralized archiving infrastructure, persistent identifier registries, and secure local fallback networks.

Digital Preservation Architecture

PJCR utilizes the PKP Preservation Network (PKP PN) plugin infrastructure integrated within Open Journal Systems (OJS) as its primary long-term preservation repository. This system preserves content using LOCKSS (Lots of Copies Keep Stuff Safe) decentralized software code, creating distributed archives among participating global nodes to ensure that published research remains permanently stable and retrievable. To maximize compatibility with international digital libraries, the journal maintains active LOCKSS and CLOCKSS publisher manifests, granting explicit, permanent permissions to institutional archiving crawlers to ingest and preserve the journal's archival units securely.

Persistent Identification Framework

Every peer-reviewed article published in the journal is assigned an immutable Digital Object Identifier (DOI) through Crossref using the official prefix 10.65761. This machine-readable identifier links directly to the article metadata registry, ensuring permanent global resolution and accurate citation tracking across indexing platforms. This framework guarantees that document landing URLs and full-text links remain fully operational and index-compliant, entirely independent of future website structural modifications or domain reconfigurations.

Author Self-Archiving Policy

The journal operates a Green Open Access self-archiving model that allows authors to retain full copyright and distribute all versions of their manuscript across the research lifecycle. Authors are permitted to deposit their un-peer-reviewed preprints in non-commercial repositories at any stage prior to formal publication, provided acknowledgment of submission to this journal is clear. Upon peer-review acceptance, the postprint author accepted manuscript may be shared in institutional or disciplinary repositories. Finally, the publisher-formatted version of record PDF may be shared immediately upon online publication across academic networks, provided the text retains full journal metadata attribution and includes the active Crossref DOI resolution link.