Research articles are more than files published on a website. They are part of the scholarly record: the evidence, ideas, methods and findings that researchers, students, educators and institutions rely on for years to come.
As academic publishing moves online, preserving this record has become an essential responsibility. A journal website may suffer a hosting failure, a cyberattack, an organisational change or even permanent closure. If published content exists only on the journal’s live server, readers can lose access when that server or website disappears.
Digital preservation in scholarly publishing means the policies, technologies and processes used to protect digital research content and keep it usable and accessible over time. For journal publishers, preservation belongs alongside peer review, publication ethics, metadata quality and content delivery — not as an afterthought.
What Is Digital Preservation?
Digital preservation is the ongoing process of maintaining digital materials so they remain authentic, accessible and usable over the long term. In scholarly publishing, preserved materials may include:
- Full-text research articles and review papers.
- Article metadata — titles, authors, abstracts and identifiers.
- Figures, tables, datasets and supplementary files.
- Issue-level and journal-level publication records.
- Corrections, retractions and notices about published work.
- Website and publication information needed to interpret the record.
Preservation is broader than keeping a copy of a PDF. It means maintaining the integrity of files, documenting what has been preserved, managing formats and technical dependencies, and planning how content could be reached if the publisher’s own platform became unavailable.
Why Is Digital Preservation Important for Research Journals?
1. Protects the scholarly record
Research builds on earlier work. If an article disappears, later researchers lose the methods, data, citations and findings they depend on.
2. Continuity when a website is down
The journal website is the main access point, but it should not be the only safeguard. Independent arrangements add a second layer of protection.
3. Reduces permanent data loss
Hardware failure, accidental deletion, software errors and attacks happen. Documented procedures and independent copies reduce reliance on one system.
4. Survives technological change
Formats, software and platforms change. Long-term preservation attends to format sustainability, metadata, integrity checks and, where needed, migration.
5. Shows responsible publishing
A clear archiving policy tells authors, readers and librarians how content is safeguarded. It supports transparent governance, though it does not by itself establish indexing, accreditation or quality.
6. Required by good-practice standards
COPE’s transparency principles ask journals to explain their electronic backup and preservation plans, and UGC’s suggested parameters include an archival policy.
Digital Backup vs Digital Preservation
| Digital backup | Digital preservation |
|---|---|
| Supports recovery after data loss or system failure. | Supports long-term integrity, authenticity, usability and access. |
| Often focuses on restoring operational systems. | Covers content, metadata, formats, documentation and access planning. |
| May sit under the same organisational control as the live website. | Often uses independent or geographically distributed infrastructure. |
| May keep data only for a limited period. | Follows a long-term strategy with defined responsibilities and review. |
| Essential for day-to-day operations. | Essential for maintaining the scholarly record over time. |
A journal should keep secure backups even if it uses a preservation service. Equally, a backup on the same hosting account should never be described as an independent long-term preservation arrangement.
Common Digital Preservation Approaches
No single method suits every publisher. The right approach depends on the journal platform, content volume, budget, access model and technical capacity.
1. Independent off-site backups
Encrypted backups in a separate account, location or infrastructure. They should be scheduled, monitored, access-controlled and tested through restoration exercises. They are an important safeguard, but they are not the same as participation in a recognised scholarly preservation archive.
2. Distributed preservation networks
Distributed systems keep copies across several participating institutions or nodes. This reduces dependence on one server or organisation and supports integrity checking and repair. LOCKSS-based networks and CLOCKSS are examples; their rules, coverage and access conditions differ.
3. CLOCKSS
CLOCKSS (Controlled Lots of Copies Keep Stuff Safe) is a not-for-profit collaboration of academic publishers and research libraries. It runs a dark archive using LOCKSS technology, with 12 archive nodes at academic institutions worldwide. Preserved content is not publicly available unless a qualifying trigger event is declared under CLOCKSS procedures.
4. LOCKSS
LOCKSS — “Lots of Copies Keep Stuff Safe” — provides open-source technology and services for distributed digital preservation. Different LOCKSS networks have different purposes and participation models, so a publisher should identify the specific network and confirm its content is included.
5. Portico
Portico is a preservation service supported by libraries and publishers, with its own independent infrastructure. It operates as a dark archive for its preservation service, with access under defined conditions.
6. PKP Preservation Network
The PKP Preservation Network (PKP PN) preserves eligible journals that run on Open Journal Systems (OJS). Enabling a plugin or displaying a preservation statement is not, by itself, proof that content has been deposited — journal managers should verify the status of their actual content.
How CLOCKSS Works
In practice: while the journal website works, readers use the website and CLOCKSS keeps its copies in the background. If the website becomes unavailable and a qualifying trigger event is authorised, CLOCKSS can make the preserved content openly accessible — protecting against hosting failures, cyberattacks, publisher closure and long-term technological change.
CLOCKSS vs Portico vs LOCKSS vs PKP PN
These are different approaches to preserving digital scholarly content.
| Feature | CLOCKSS | Portico | LOCKSS | PKP PN |
|---|---|---|---|---|
| Primary purpose | Long-term preservation | Long-term preservation | Distributed preservation | Preservation of journals published on OJS |
| Technology | LOCKSS-based | Independent preservation infrastructure | Open-source LOCKSS software | LOCKSS-based network run by PKP |
| Dark archive | Yes | Yes, for its preservation service | Depends on network configuration | Yes |
| Public access after trigger | Yes, under its policies | Yes, under defined conditions | Depends on network and preservation arrangements | Yes, if the journal stops publishing or content is no longer available |
| Publisher participation | Paid service | Paid service | Some participation options are free | Free for eligible journals |
| Community model | Publishers and libraries | Supported by libraries and publishers | Library-centered preservation networks | PKP with participating libraries |
| Main requirement | Agreement and fee | Agreement and fee | Joining or forming a network | Journal must run on OJS and enable the PN plugin |
CLOCKSS Fees for Publishers in 2026
CLOCKSS calculates a publisher’s annual contribution from total publishing revenue, plus ingest charges based on the content preserved. The figures below are CLOCKSS’s published 2026 schedule (read on 30 September 2026) — always confirm the current fees with CLOCKSS.
| Total annual publishing revenue | Annual fee (USD) |
|---|---|
| Under $250,000 | $275 |
| $250,000 – $500,000 | $550 |
| $500,000 – $1 million | $1,295 |
| $1 – 5 million | $2,590 |
| $5 – 10 million | $5,180 |
| $10 – 15 million | $7,775 |
| $15 – 20 million | $10,350 |
| $20 – 30 million | $12,940 |
| $30 – 40 million | $15,530 |
| $40 – 50 million | $18,085 |
| $50 – 200 million | $19,440 |
| Over $200 million | $32,400 |
| Ingest service | Fee |
|---|---|
| First 100 new journal articles | Free |
| New (front-file) journal articles | $0.25 per article |
| Backfile journal articles | $0.15 per article, with high-volume discounts |
| Initial setup | Quoted by complexity (the 2026 agreement cites $1,000 – $7,500) |
Worked example (illustrative, not a quote): a publisher with revenue under $250,000 depositing 1,000 new articles would pay the $275 annual contribution, nothing for the first 100 articles and $225 for the remaining 900 — about $500, before any setup fee, taxes or other charges.
Sources: CLOCKSS — join as an academic publisher and the 2026 Participating Publisher Agreement (PDF).
How a Journal Applies to Join CLOCKSS
- Prepare the journal information. Publisher’s legal name and website, journal titles and ISSNs, platform and hosting details, issue and article URLs, number of articles to preserve, access model (open access or subscription), approximate publishing revenue and a technical contact.
- Submit the publisher application. Use CLOCKSS’s official publisher application, or write to [email protected].
- Complete the technical evaluation. CLOCKSS checks whether content can be harvested or transferred in an acceptable format. For a custom platform this can mean a machine-readable publisher manifest, article-level metadata, accessible full-text PDFs and files, preservation permissions and access for the archive’s harvesters.
- Sign the agreement and pay. CLOCKSS provides the setup quote and the participation agreement. Nothing is preserved until the agreement is signed.
- Deposit and keep preserving. Once active, agreed content is deposited and maintained under CLOCKSS procedures. Check periodically that new issues, corrections and retractions are being ingested.
For custom PHP journal platforms like JMVRA’s, joining usually needs platform-specific technical integration — a manifest page and harvest access — rather than a plugin. Confirm the exact requirements with CLOCKSS during evaluation.
If Your Journal Uses OJS
- Open the journal’s OJS dashboard.
- Go to Website Settings → Archiving.
- Enable the CLOCKSS (or PKP PN) option.
- Open the publisher manifest and check it lists the journal’s issues.
- Complete the service’s application and technical evaluation.
These settings alone do not mean the journal has been accepted. The agreement and approval process still apply, and deposits should be checked once they start.
Preservation Is Not Indexing or Recognition
| Area | What a preservation service provides |
|---|---|
| Scopus indexing | No direct indexing or acceptance |
| Web of Science indexing | No direct indexing or acceptance |
| UGC / UGC-CARE recognition | No automatic recognition |
| DOI registration | Not a DOI registration service |
| Long-term preservation | Yes |
| Digital continuity | Yes |
| Access after qualifying trigger events | Yes |
Authors and institutions should verify indexing directly in the relevant database, and recognition with their university or regulator.
What a Journal’s Preservation Policy Should Include
- Scope: which journals, issues, articles, metadata and supplementary files are covered.
- Method: the backup systems or third-party services actually used.
- Deposit and updates: how new articles, corrections and retractions are handled.
- Integrity and security: access controls, monitoring and integrity checks, without exposing sensitive details.
- Continuity: what happens if the website, platform or publishing operation becomes unavailable.
- Access conditions: whether preserved content is dark or open, and what governs release.
- Responsibilities: who reviews the policy and the arrangements.
- Review: a commitment to review the policy periodically and whenever arrangements change.
Avoid vague statements such as “all content is permanently preserved” unless they can be substantiated. A policy should describe the actual safeguards and their limits.
A Practical Preservation Checklist for Journal Publishers
- Keep at least one backup separate from the production server and account.
- Encrypt backups and restrict access to authorised staff.
- Automate backup schedules and monitor failures.
- Test restoration periodically — an untested backup may not be reliable.
- Preserve article PDFs, metadata, supplementary files and publication records.
- Use consistent file naming and organised issue-level archives.
- Keep records of corrections, retractions and other post-publication updates.
- Document the preservation service or method actually in use.
- Confirm whether deposits include historical backfiles as well as new content.
- Review the preservation policy at planned intervals.
- Make sure website archiving statements match the verified technical setup.
- Keep a continuity plan for domain, hosting, platform and organisational changes.
Digital Preservation and Open Access Journals
Open access removes subscription barriers today, but it does not guarantee access tomorrow. An open journal can still lose its website, files or operations. Open-access publishers should treat preservation as a separate responsibility: a preservation service, reliable backups, clear metadata and a documented continuity plan work together to protect access.
Where JMVRA Stands
JMVRA currently preserves its archive through its own preservation network: permanent article URLs that are never restructured, Crossref DOIs that resolve independently of the website, archived copies in Zenodo, retracted papers kept online and marked, and a written succession plan in its archival policy. JMVRA has started the process of applying to join a LOCKSS-based preservation network; it will name the network and the content covered only once participation is confirmed.
See the journal’s full, verifiable record — indexing, DOI prefix and preservation status — on the JMVRA Indexing & Discovery page.
Conclusion
Digital preservation is a core part of responsible scholarly communication. Publishing an article online is only the beginning; journals also need a realistic plan to protect the content, metadata and publication record for future readers.
Tested backups, documented procedures, suitable preservation services and transparent policies together reduce the risk of losing valuable research. For authors and librarians, checking a journal’s preservation policy is a useful part of evaluating it. For publishers, the essential step is to make accurate claims, verify that preservation is actually happening, and keep the policy aligned with the systems in use.
