cometadata/comet-datacite-enrichment-layer-ingest-format

COMET Enrichment Files - DataCite Enrichment Layer Ingest Format

This dataset contains metadata enrichment records in the DataCite enrichment ingest format, produced by the COMET (Collaborative Metadata) initiative. Each record represents a single metadata enrichment to be applied to an existing DataCite record, identified by DOI.

The enrichments were generated against the February 2026 version of the DataCite monthly data file using the datacite-enrichment tool.

Dataset Configs

This dataset contains three configs (subsets), one for each enrichment type:

Config	Records	Size	Description
author_affiliations	8,963,119	8.8 GB	Institutional affiliation enrichments for creator records
preprint_matching	812,958	526 MB	Links between arXiv preprints and their published versions
resource_type	3,338,250	2.1 GB	Reclassifications of generic resource types to specific types

Record Schema

Each record is a JSON object with the following fields:

Field	Type	Description
doi	string	The DOI of the DataCite record to be enriched
contributors	array	Provenance: who produced this enrichment (COMET as Producer)
resources	array	Provenance: related project DOI and source dataset reference
action	string	The enrichment action: insert, updateChild, or update
field	string	The DataCite metadata field being enriched
originalValue	object	The original value being modified (present for updateChild and update actions)
enrichedValue	object	The new or updated value to apply

Config Details

author_affiliations

Adds institutional affiliations to creator records on arXiv preprints registered in DataCite.

• Action: updateChild — finds and updates a specific creator within the creators array
• Field: creators
• Source data: cometadata/arxiv-author-affiliations-matched-ror-ids
• Project DOI: 10.82461/160e-8q92

Example record:

{
  "doi": "10.48550/arxiv.1109.4119",
  "contributors": [
    {"name": "COMET", "contributorType": "Producer", "nameType": "Organizational"}
  ],
  "resources": [
    {"relatedIdentifier": "http://doi.org/10.82461/160e-8q92", "relatedIdentifierType": "DOI", "relationType": "IsDocumentedBy", "resourceTypeGeneral": "Project"},
    {"relatedIdentifier": "https://huggingface.co/datasets/cometadata/arxiv-author-affiliations-matched-ror-ids", "relatedIdentifierType": "URL", "relationType": "IsDerivedFrom", "resourceTypeGeneral": "Dataset"}
  ],
  "action": "updateChild",
  "field": "creators",
  "originalValue": {
    "nameType": "Personal",
    "givenName": "Philip D.",
    "familyName": "Mannheim",
    "name": "Mannheim, Philip D."
  },
  "enrichedValue": {
    "nameType": "Personal",
    "givenName": "Philip D.",
    "familyName": "Mannheim",
    "name": "Mannheim, Philip D.",
    "affiliation": [
      {
        "name": "Department of Physics, University of Connecticut, Storrs, CT 06269, USA",
        "affiliationIdentifier": "https://ror.org/02der9h97",
        "affiliationIdentifierScheme": "ROR",
        "schemeUri": "https://ror.org"
      }
    ]
  }
}

preprint_matching

Links arXiv preprints to their published versions by inserting relatedIdentifiers entries with the IsVersionOf relation type.

• Action: insert — appends a new entry to the relatedIdentifiers array
• Field: relatedIdentifiers
• Source data: cometadata/arxiv-preprint-matching-results
• Project DOI: 10.82461/m8a8-m211

Example record:

{
  "doi": "10.48550/arxiv.2302.11570",
  "contributors": [
    {"name": "COMET", "contributorType": "Producer", "nameType": "Organizational"}
  ],
  "resources": [
    {"relatedIdentifier": "10.82461/m8a8-m211", "relatedIdentifierType": "DOI", "relationType": "IsDocumentedBy", "resourceTypeGeneral": "Project"},
    {"relatedIdentifier": "https://huggingface.co/datasets/cometadata/arxiv-preprint-matching-results", "relatedIdentifierType": "DOI", "relationType": "IsDerivedFrom", "resourceTypeGeneral": "Dataset"}
  ],
  "action": "insert",
  "field": "relatedIdentifiers",
  "enrichedValue": {
    "relatedIdentifier": "10.58530/2024/0038",
    "relatedIdentifierType": "DOI",
    "relationType": "IsVersionOf"
  }
}

resource_type

Reclassifies DataCite records that have a generic resourceTypeGeneral of "Text" to more specific types such as JournalArticle, Preprint, etc., based on procedural analysis.

• Action: update — replaces the entire types field
• Field: types
• Source data: cometadata/datacite-procedural-resource-type-general-reclassifications
• Project DOI: 10.82461/bpzr-jd55

Example record:

{
  "doi": "10.5281/zenodo.15414",
  "contributors": [
    {"name": "COMET", "contributorType": "Producer", "nameType": "Organizational"}
  ],
  "resources": [
    {"relatedIdentifier": "10.82461/bpzr-jd55", "relatedIdentifierType": "DOI", "relationType": "IsDocumentedBy", "resourceTypeGeneral": "Project"},
    {"relatedIdentifier": "https://huggingface.co/datasets/cometadata/datacite-procedural-resource-type-general-reclassifications", "relatedIdentifierType": "URL", "relationType": "IsDerivedFrom", "resourceTypeGeneral": "Dataset"}
  ],
  "action": "update",
  "field": "types",
  "originalValue": {"resourceTypeGeneral": "Text"},
  "enrichedValue": {"resourceTypeGeneral": "JournalArticle"}
}

How These Files Were Generated

These enrichment records were produced using the datacite-enrichment tool, which:

1. Takes source enrichment data (from the datasets linked above) and a YAML configuration file defining field mappings, filters, and provenance metadata
2. Converts it to a standardized enrichment format using domain-specific transformers (one per enrichment type)
3. Produces records that carry full provenance tracking: contributor info (COMET as Producer), references to the source dataset and project DOI, and original/enriched values

The conversion was run against all files in the February 2026 version of the DataCite monthly data file.

License

This dataset is released under CC0 1.0.