Richer metadata. Together.
Collective action leads to structural change
COMET brings together stakeholders across domains committed to the collective stewardship of quality, trustworthy, and open scholarly metadata.
Together we’re implementing a new model for metadata enrichment that recognises all the stakeholders in research creation, curation, and consumption. Research is a collective endeavour. Its description should be too.
What is the COMET Model? Explore
DOI metadata enrichment
COMET has produced enriched metadata for over 6.2 million unique DOIs across three high-value metadata fields through our targeted enrichment projects.
COMET treats gaps in high-value PID metadata fields as discrete, community-prioritised problems—each one tractable and measurable—demonstrating that collective action produces better outcomes than individual effort alone.
Summary of the impact made as of December 31, 2025. Unique DOIs enriched: Count of distinct DataCite records that received at least one enrichment.
| Use case | Metadata field | Number of unique DOIs |
|---|---|---|
| Name and describe research outputs | Resource type | 3340593 |
| Identify and connect organisations associated with research outputs | Affiliations | 2799081 |
| Identify and connect related research outputs | Related identifier | 890779 |
Join the evolution
Join the COMET community
Sign-up for the newsletter, join community meetings, endorse our work, or showcase your enrichment project.
Advance metadata enrichment
Run metadata through our infrastructure, provide research outputs for data quality training, or share methods for plugin development.
Offer your support
There are many ways to support COMET, financially or with your knowledge and expertise.