1. Basic principles

The journal provides long-term, secure and stable storage of all published materials in order to ensure their long-term accessibility to the academic community.

The archiving policy forms part of the journal’s sustainable development strategy and aims to:

• preserve scientific content despite technical or organisational changes;
• ‍provide open access to full texts and metadata;
• protect digital objects from loss, damage or unauthorised deletion.

2. Repositories and long-term preservation systems

To guarantee the reliability of archiving, the journal employs a multi-tiered preservation system:

• storage of full texts on the journal’s official website;
• transferring copies of issues to the National Repository of Academic Texts of Ukraine;
• depositing materials in the repository of the Bogdan Khmelnitsky Melitopol State Pedagogical University;
• archiving in international long-term preservation systems, in particular:
  
  • Zenodo;
  • OpenAIRE;
  • LOCKSS / CLOCKSS.

Each article is assigned its own unique DOI, which ensures that the electronic link remains permanent regardless of where the file is physically stored.

3. Technical infrastructure and storage formats

The following technical solutions are used to ensure long-term accessibility:

• storage of full texts in PDF/A format (archival storage standard);
• storage of structured metadata in XML/JATS format;
• support for HTML versions for web access;
• regular backups (on-site and off-site);
• use of data integrity verification systems (checksum control);
• use of server mirroring and archive duplication technologies.

4. Guarantees of continuous access

The journal follows an Open Access policy and ensures:

• free access to all articles without any time or quantity restrictions;
• open metadata for indexing and reuse;
• preservation of archives in the event of the journal ceasing operations through the transfer of materials to institutional and international repositories.

Metadata and full-text articles are indexed and submitted to leading open access aggregators, including:

• Directory of Open Access Journals;
• Google Scholar;
• OpenAIRE.

5. Conformity with international standards

The journal’s archiving policy complies with international recommendations on the digital preservation of scholarly publications, in particular:

• PKP Preservation Network;
• Directory of Open Access Journals Best Practice;
• Open Access Scholarly Publishers Association (OASPA).