Interoperability Policy
Open metadata for global integration
Version 1.0 | Updated: January 2026
What is Interoperability?
Interoperability means that our articles' metadata (title, authors, abstract, keywords, DOI) can be automatically collected by digital libraries, institutional repositories and indexing systems worldwide. This ensures your research is easily discovered, indexed and integrated across diverse global academic platforms.
OAI-PMH Protocol
We use the OAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting) protocol, an international standard for sharing academic metadata
Automatic Harvesting
Libraries and repositories can automatically collect metadata from all our published articles.
Synchronization
External systems can periodically synchronize to obtain newly published articles.
Standard Format
Metadata available in DataCite format, widely recognized by the scientific community.
How to Access Our Metadata
OAI-PMH Endpoint
Use the following endpoint to harvest metadata from all articles published in Periódico Tchê Química:
https://zenodo.org/oai2d?verb=ListRecords&metadataPrefix=oai_datacite&set=user-ptq
Metadata format: DataCite (XML)
Repository: Zenodo (CERN)
How to Use the Endpoint
For Digital Libraries
- Copy the endpoint to your OAI-PMH harvesting tool
- Configure automatic synchronization (daily, weekly or monthly)
- Metadata will be collected and integrated into your catalog
For Institutional Repositories
The endpoint is compatible with systems such as:
- DSpace
- EPrints
- VIVO
- Fedora
- Other academic repositories supporting OAI-PMH
For Scientific Aggregators
Scientific search and aggregation systems can use the endpoint to include our articles in their databases, expanding discovery of research published in Periódico Tchê Química.
Interoperability Policy
1. Total Openness
All metadata of published articles are open and free for harvesting. No access restrictions, fees or registration needed to use the OAI-PMH endpoint.
2. International Standards
We follow these internationally recognized standards:
- OAI-PMH 2.0 for harvesting protocol
- DataCite for metadata format
- Dublin Core as complementary metadata
- DOI as persistent identifier
3. Continuous Updates
New articles are added to the Zenodo repository within 48 hours after publication, ensuring metadata is always up-to-date for harvesting.
4. Metadata Quality
All metadata undergoes quality verification before being made available:
- Author names with ORCID when available
- Complete institutional affiliations
- Abstracts in Portuguese and English
- Controlled keywords
- References with DOI when available
5. Technical Support
Libraries and repositories needing technical assistance for integration can contact us via email journal.tq@gmail.com. We provide support for configuration and troubleshooting.
Need Help?
OAI-PMH Documentation:
openarchives.org/pmh
DataCite Format:
schema.datacite.org
Zenodo OAI-PMH:
developers.zenodo.org
Practical Usage Example
Testing the Endpoint
To test the endpoint and see a response example, access directly in your browser:
https://zenodo.org/oai2d?verb=Identify
This command returns information about the repository. To list all records from Periódico Tchê Química, use:
https://zenodo.org/oai2d?verb=ListRecords&metadataPrefix=oai_datacite&set=user-ptq
Integrate Our Content
Libraries and repositories: use our OAI-PMH endpoint to automatically include Periódico Tchê Química articles in your catalog