Mostly yes, for a reduced catalog. Of the 234 concept scorings across the fourteen use cases, 64 map directly to the Crossref /works response, 71 map approximately, and 99 have no Crossref equivalent. The core FAIR Text and Identifiers concepts, funding, licenses, and most relation types survive the port; contacts, contributor types, typed related items, keywords, and geographic/temporal coverage do not — Crossref’s journal-article heritage shows exactly where you’d expect.
Concepts from the Metadata Game Changers catalog (FAIR_spirals.json, 2026-09-06) · Crossref side verified against the live api.crossref.org (186.3M works)
| Use case | Group | Concepts | Direct | Partial | Unmapped | Reads as |
|---|---|---|---|---|---|---|
| FAIR Text | FAIR | 15 | 9 | 2 | 4 | Ports well |
| FAIR Identifiers | FAIR | 18 | 6 | 6 | 6 | Ports with gaps |
| FAIR Connections | FAIR | 18 | 3 | 7 | 8 | Weak port |
| FAIR Contacts | FAIR | 10 | 1 | 0 | 9 | Does not port |
| Project Team | Projects | 30 | 8 | 9 | 13 | Author half ports |
| Project Items | Projects | 20 | 0 | 2 | 18 | Does not port |
| Project Relations | Projects | 26 | 11 | 13 | 2 | Ports well |
| SHARE Stewardship | SHARE | 5 | 0 | 1 | 4 | Does not port |
| SHARE Harmonization | SHARE | 11 | 4 | 6 | 1 | Ports well |
| SHARE Access | SHARE | 4 | 0 | 3 | 1 | Approximate |
| SHARE Reuse | SHARE | 4 | 1 | 1 | 2 | Citations only |
| SHARE Engagement | SHARE | 12 | 6 | 2 | 4 | Ports with gaps |
| DataCite Relations | Extras | 41 | 15 | 17 | 9 | Ports with gaps |
| DataCite Contributors | Extras | 20 | 0 | 2 | 18 | Does not port |
author[].ORCID, affiliations → author[].affiliation[].name,
affiliation identifiers → affiliation[].id[] (ROR), funder identifiers → funder[].DOI/funder[].id[],
rights URIs → license[].URL. The two casualties: publisher identifiers (Crossref identifies the depositing member, not a publisher ROR)
and the contributor bars (no contributor-type vocabulary). An Organization Completeness analog also exists:
filter=ror-id:<ROR> finds an organization’s works (12,912 for Wageningen), and facet=publisher-name plays the role of the client facet.The 234 concept scorings draw on about fifteen DataCite properties. This is how each property fares, with live coverage of the 186.3M Crossref works where a filter exists to measure it.
| DataCite property | Crossref equivalent | Status | Crossref coverage | Notes |
|---|---|---|---|---|
| titles, publisher, publicationYear, types, doi, url | title[], publisher, issued, type, DOI, resource.primary.URL | direct | ~100% | The required core; type vocabularies differ (30 Crossref types vs resourceTypeGeneral) |
| creators (names) | author[] | direct | ~100% | given/family vs name distinguishes people from organizations |
| creators → nameIdentifiers | author[].ORCID | direct | 11.8% (22.0M) | ORCID only |
| creators → affiliation | author[].affiliation[].name | direct | 17.9% (33.3M) | |
| creators → affiliation identifiers | author[].affiliation[].id[] | direct | 0.6% (1.15M) | ROR, publisher-asserted; young and growing |
| contributors (24 types) | editor[] / translator[] / chair[] | partial | — | Three fixed roles; no ContactPerson, Distributor, RightsHolder, Data*, Project* … |
| fundingReferences | funder[] {name, DOI, id[], award[]} | direct | 8.4% (15.6M) | Award titles only on separate grant records (type=grant) |
| rightsList | license[].URL | partial | 45.0% (83.9M) | URL only — no rights name or SPDX identifier fields |
| descriptions (Abstract) | abstract | direct | 24.1% (44.8M) | JATS XML; Methods / TechnicalInfo have no home |
| relatedIdentifiers | relation{} + reference[] | partial | 7.3% relations · 43.7% references | Shared relation vocabulary, Crossref subset; no target resource types |
| relatedItems | reference[] | partial | 43.7% (81.4M) | Reference entries ≈ citation relatedItems |
| subjects | — | none | 0% | subject[] retired 2024, now empty |
| dates (typed) | created, issued, accepted, license[].start | partial | — | System dates; no Collected / Coverage / depositor-typed dates |
| geoLocations | — | none | 0% | |
| sizes, formats | link[].content-type | none | — | MIME of full-text links at best |
| viewCount, downloadCount, citationCount | is-referenced-by-count | partial | ~100% | Citations yes; views and downloads no |
Jump to: Text · Identifiers · Connections · Contacts · Relations · Contributors · Project Team · Project Items · Project Relations · Stewardship · Harmonization · Access · Reuse · Engagement
| Concept | DataCite field | Status | Crossref field | Note |
|---|---|---|---|---|
| FAIR TextFAIR9 direct · 2 partial · 4 unmapped of 15 | ||||
| Abstract | descriptions | direct | abstract | JATS-XML markup; ~27% of works (44.8M) |
| Date Created | dates | partial | created | Registration timestamp, not a depositor-supplied content date |
| Keyword | subjects | none | — | subject[] was retired in 2024 and now returns empty |
| Keyword Vocabulary | subjects | none | — | No keywords |
| Resource Author Affiliation | creators | direct | author[].affiliation[].name | ~20% of works (33.3M) |
| Resource Author | creators | direct | author[].family / .given / .name | Universal on Crossref works |
| Resource Identifier | identifiers | direct | DOI | |
| Resource Publication Date | publicationYear | direct | issued.date-parts | Also published / published-print / published-online |
| Resource Publisher | publisher | direct | publisher | |
| Resource Title | titles | direct | title[] | |
| Resource Type General | types | direct | type | 30-value vocabulary; needs a crosswalk to resourceTypeGeneral |
| Project Funder | fundingReferences | direct | funder[].name | ~9% of works (15.6M) |
| Award Title | fundingReferences | partial | grant records (type=grant) | Works carry award numbers only; titles live on Crossref grant DOIs |
| Temporal Extent | dates | none | — | No coverage dates |
| Spatial Extent | geoLocations | none | — | No geolocation |
| FAIR IdentifiersFAIR6 direct · 6 partial · 6 unmapped of 18 | ||||
| Date Submitted | dates | partial | accepted / posted | Closest equivalents, on some record types |
| Keyword Value URI | subjects | none | — | No keywords |
| Keyword Vocabulary URI | subjects | none | — | No keywords |
| Resource Author Type | creators | partial | author[] shape | Person vs organization inferable (given/family vs name); no explicit nameType |
| Resource Author Identifier | creators | direct | author[].ORCID | ORCID only; ~13% of works (22.0M) |
| Resource Author Identifier Type | creators | partial | (implicit) | Always ORCID when present |
| Publisher Identifier | publisher | partial | member | Crossref member ID (the depositor), not a publisher ROR |
| Publisher Identifier Type | publisher | none | — | |
| Publisher Identifier Scheme URI | publisher | none | — | |
| Resource Author Affiliation Identifier | creators | direct | author[].affiliation[].id[].id | ROR; ~0.7% of works (1.15M), growing |
| Resource Author Affiliation Identifier Type | creators | direct | author[].affiliation[].id[].id-type | "ROR" |
| Resource Author Affiliation Identifier Scheme URI | creators | none | — | No schemeUri field; derivable from id-type |
| Resource Identifier Type | identifiers | partial | (implicit) | Always DOI |
| Resource Type | types | partial | type | No free-text resourceType |
| Funder Identifier | fundingReferences | direct | funder[].DOI / funder[].id[] | Funder Registry DOI today; RORs arriving as the registry merges into ROR |
| Funder Identifier Type | fundingReferences | direct | funder[].id[].id-type | "DOI" (Funder Registry), "ROR" |
| Award URI | fundingReferences | none | — | |
| Award Number | fundingReferences | direct | funder[].award[] | |
| FAIR ConnectionsFAIR3 direct · 7 partial · 8 unmapped of 18 | ||||
| CitedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only |
| Date Available | dates | partial | license[].start | License start / embargo delay approximates availability |
| DescribedBy | relatedIdentifiers | none | — | Not in the vocabulary |
| Distribution Contact | contributors | none | — | No Distributor role |
| DocumentedBy | relatedIdentifiers | partial | relation.is-documented-by | In the relation schema; essentially undeposited |
| Resource Contact | contributors | none | — | No ContactPerson role |
| HasMetadata | relatedIdentifiers | none | — | Not in the vocabulary |
| Resource Format | formats | partial | link[].content-type | MIME types of full-text links only |
| Resource Size | sizes | none | — | |
| Resource URL | url | direct | resource.primary.URL | Landing page URL |
| Rights | rightsList | partial | license[].URL | URL only — no rights name; derivable from the URL |
| RightsHolder | contributors | none | — | No RightsHolder role; copyright lines occasionally in assertion[] |
| Methods | descriptions | none | — | No typed descriptions |
| Technical Information | descriptions | none | — | No typed descriptions |
| ReferencedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only |
| ReviewedBy | relatedIdentifiers | direct | relation.has-review | |
| SourceOf | relatedIdentifiers | partial | relation.has-derivation / is-basis-for | Rarely deposited |
| SupplementTo | relatedIdentifiers | direct | relation.is-supplement-to | |
| FAIR ContactsFAIR1 direct · 0 partial · 9 unmapped of 10 | ||||
| Resource Contact Identifier | contributors | none | — | Role does not exist |
| Resource Contact Identifier Scheme | contributors | none | — | Role does not exist |
| Resource Contact Identifier Scheme URI | contributors | none | — | Role does not exist |
| Distribution Contact Identifier | contributors | none | — | Role does not exist |
| Distribution Contact Identifier Scheme | contributors | none | — | Role does not exist |
| Distribution Contact Identifier Scheme URI | contributors | none | — | Role does not exist |
| Rights Holder Identifier | contributors | none | — | Role does not exist |
| Rights Holder Identifier Scheme | contributors | none | — | Role does not exist |
| Rights Holder Identifier Scheme URI | contributors | none | — | Role does not exist |
| Rights URI | rightsList | direct | license[].URL | ~50% of works (83.9M) |
| DataCite RelationsExtras15 direct · 17 partial · 9 unmapped of 41 | ||||
| Related Identifier | relatedIdentifiers | direct | relation.*[].id + reference[].DOI | Typed relations plus the reference list |
| Related Identifier Type | relatedIdentifiers | direct | relation.*[].id-type | doi / issn / isbn / uri |
| Related Item Type | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Cites | relatedIdentifiers | direct | reference[] | Citations are the reference list; ~48% of works (81.4M) |
| IsCitedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only; citing DOIs not in the work record |
| Collects | relatedIdentifiers | none | — | Not in the Crossref relation vocabulary |
| IsCollectedBy | relatedIdentifiers | none | — | Not in the Crossref relation vocabulary |
| IsSupplementTo | relatedIdentifiers | direct | relation.is-supplement-to | |
| IsSupplementedBy | relatedIdentifiers | direct | relation.is-supplemented-by | |
| IsTranslationOf | relatedIdentifiers | direct | relation.is-translation-of | |
| HasTranslation | relatedIdentifiers | direct | relation.has-translation | |
| Continues | relatedIdentifiers | partial | relation.continues | In the relation schema; essentially undeposited |
| IsContinuedBy | relatedIdentifiers | partial | relation.is-continued-by | In the relation schema; essentially undeposited |
| IsNewVersionOf | relatedIdentifiers | partial | relation.is-version-of / replaces | No new-vs-previous distinction |
| IsPreviousVersionOf | relatedIdentifiers | partial | relation.has-version / is-replaced-by | No new-vs-previous distinction |
| IsPartOf | relatedIdentifiers | direct | relation.is-part-of | Also structural: container-title / ISSN for articles |
| HasPart | relatedIdentifiers | direct | relation.has-part | Components (figures, supplements) via is-component-of are common |
| IsPublishedIn | relatedIdentifiers | partial | container-title / ISSN | Structural in Crossref, not a relation |
| IsReferencedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only |
| References | relatedIdentifiers | direct | reference[] | Crossref does not distinguish Cites from References |
| Documents | relatedIdentifiers | partial | relation.documents | In the relation schema; essentially undeposited |
| IsDocumentedBy | relatedIdentifiers | partial | relation.is-documented-by | In the relation schema; essentially undeposited |
| IsCompiledBy | relatedIdentifiers | none | — | Not in the Crossref relation vocabulary |
| Compiles | relatedIdentifiers | none | — | Not in the Crossref relation vocabulary |
| IsVariantFormOf | relatedIdentifiers | partial | relation.is-variant-form-of | In the relation schema; essentially undeposited |
| IsOriginalFormOf | relatedIdentifiers | partial | relation.is-original-form-of | In the relation schema; essentially undeposited |
| IsIdenticalTo | relatedIdentifiers | direct | relation.is-identical-to | Used for mirrored / duplicate deposits |
| HasMetadata | relatedIdentifiers | none | — | Not in the vocabulary |
| IsMetadataFor | relatedIdentifiers | none | — | Not in the vocabulary |
| Reviews | relatedIdentifiers | direct | relation.is-review-of | Peer-review records carry these |
| IsReviewedBy | relatedIdentifiers | direct | relation.has-review | |
| IsDerivedFrom | relatedIdentifiers | partial | relation.is-derived-from / is-based-on | Derivation vocabulary differs; rarely deposited |
| IsSourceOf | relatedIdentifiers | partial | relation.has-derivation / is-basis-for | Rarely deposited |
| Describes | relatedIdentifiers | none | — | Not in the vocabulary |
| IsDescribedBy | relatedIdentifiers | none | — | Not in the vocabulary |
| HasVersion | relatedIdentifiers | direct | relation.has-version | |
| IsVersionOf | relatedIdentifiers | direct | relation.is-version-of | |
| Requires | relatedIdentifiers | partial | relation.requires | In the relation schema; essentially undeposited |
| IsRequiredBy | relatedIdentifiers | partial | relation.is-required-by | In the relation schema; essentially undeposited |
| Obsoletes | relatedIdentifiers | partial | update-to / relation.replaces | The corrections-and-retractions model |
| IsObsoletedBy | relatedIdentifiers | partial | updated-by / relation.is-replaced-by | The corrections-and-retractions model |
| DataCite ContributorsExtras0 direct · 2 partial · 18 unmapped of 20 | ||||
| ContactPerson | contributors | none | — | No such contributor role in Crossref |
| DataCollector | contributors | none | — | No such contributor role in Crossref |
| DataCurator | contributors | none | — | No such contributor role in Crossref |
| DataManager | contributors | none | — | No such contributor role in Crossref |
| Distributor | contributors | none | — | No such contributor role in Crossref |
| HostingInstitution | contributors | partial | institution{} | Only on reports, dissertations, posted content |
| OtherContributor | contributors | none | — | No such contributor role in Crossref |
| Producer | contributors | none | — | No such contributor role in Crossref |
| ProjectLeader | contributors | none | — | No such contributor role in Crossref |
| ProjectManager | contributors | none | — | No such contributor role in Crossref |
| ProjectMember | contributors | none | — | No such contributor role in Crossref |
| RegistrationAgency | contributors | partial | source | Implicit — every record’s agency is "Crossref" |
| RegistrationAuthority | contributors | none | — | No such contributor role in Crossref |
| RelatedPerson | contributors | none | — | No such contributor role in Crossref |
| ResearchGroup | contributors | none | — | No such contributor role in Crossref |
| RightsHolder | contributors | none | — | No RightsHolder role; copyright lines occasionally in assertion[] |
| Researcher | contributors | none | — | No such contributor role in Crossref |
| Sponsor | contributors | none | — | No such contributor role in Crossref |
| Supervisor | contributors | none | — | No such contributor role in Crossref |
| WorkPackageLeader | contributors | none | — | No such contributor role in Crossref |
| Project Team MembersProjects8 direct · 9 partial · 13 unmapped of 30 | ||||
| Resource Author | creators | direct | author[].family / .given / .name | Universal on Crossref works |
| Resource Author Type | creators | partial | author[] shape | Person vs organization inferable (given/family vs name); no explicit nameType |
| Resource Author Identifier | creators | direct | author[].ORCID | ORCID only; ~13% of works (22.0M) |
| Resource Author Identifier Type | creators | partial | (implicit) | Always ORCID when present |
| Resource Author Affiliation | creators | direct | author[].affiliation[].name | ~20% of works (33.3M) |
| Resource Author Affiliation Identifier | creators | direct | author[].affiliation[].id[].id | ROR; ~0.7% of works (1.15M), growing |
| Resource Author Affiliation Identifier Type | creators | direct | author[].affiliation[].id[].id-type | "ROR" |
| Temporal Extent | dates | none | — | No coverage dates |
| Resource Contributor Name | contributors | partial | editor[] / translator[] / chair[] | Only fixed roles — no general contributor list |
| Resource Contributor Identifier | contributors | partial | editor[].ORCID etc. | ORCID on the role lists; rare |
| Resource Contributor Identifier Type | contributors | partial | (implicit) | Always ORCID when present |
| Resource Contributor Affiliation | contributors | partial | editor[].affiliation[] etc. | Structurally present, rarely deposited |
| Resource Contributor Affiliation Identifier | contributors | partial | editor[].affiliation[].id[] etc. | Structurally present, rarely deposited |
| Funder Name | fundingReferences | direct | funder[].name | ~9% of works (15.6M) |
| Funder Identifier | fundingReferences | direct | funder[].DOI / funder[].id[] | Funder Registry DOI today; RORs arriving as the registry merges into ROR |
| ContactPerson | contributors | none | — | No such contributor role in Crossref |
| DataManager | contributors | none | — | No such contributor role in Crossref |
| Editor | contributors | direct | editor[] | |
| HostingInstitution | contributors | partial | institution{} | Only on reports, dissertations, posted content |
| Other | contributors | none | — | contributorType Other has no Crossref role |
| Producer | contributors | none | — | No such contributor role in Crossref |
| ProjectLeader | contributors | none | — | No such contributor role in Crossref |
| ProjectManager | contributors | none | — | No such contributor role in Crossref |
| ProjectMember | contributors | none | — | No such contributor role in Crossref |
| RegistrationAgency | contributors | partial | source | Implicit — every record’s agency is "Crossref" |
| RelatedPerson | contributors | none | — | No such contributor role in Crossref |
| Researcher | contributors | none | — | No such contributor role in Crossref |
| Sponsor | contributors | none | — | No such contributor role in Crossref |
| Supervisor | contributors | none | — | No such contributor role in Crossref |
| WorkPackageLeader | contributors | none | — | No such contributor role in Crossref |
| Project ItemsProjects0 direct · 2 partial · 18 unmapped of 20 | ||||
| Audiovisual | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Award | relatedIdentifiers | partial | grant records | Crossref grant DOIs exist; works rarely link them as relations |
| Book | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| BookChapter | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Collection | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| ComputationalNotebook | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| ConferencePaper | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| ConferenceProceeding | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Dataset | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Event | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| JournalArticle | relatedIdentifiers | partial | relation.is-preprint-of | Preprint→article links type the target implicitly |
| Other | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| OutputManagementPlan | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| PhysicalObject | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Project | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Report | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Software | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Standard | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Text | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Workflow | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Project RelationsProjects11 direct · 13 partial · 2 unmapped of 26 | ||||
| Related Identifier | relatedIdentifiers | direct | relation.*[].id + reference[].DOI | Typed relations plus the reference list |
| Related Identifier Type | relatedIdentifiers | direct | relation.*[].id-type | doi / issn / isbn / uri |
| Relation Type | relatedIdentifiers | direct | relation object keys | Shared vocabulary; Crossref subset |
| Related Item Type | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Continues | relatedIdentifiers | partial | relation.continues | In the relation schema; essentially undeposited |
| Describes | relatedIdentifiers | none | — | Not in the vocabulary |
| HasPart | relatedIdentifiers | direct | relation.has-part | Components (figures, supplements) via is-component-of are common |
| HasVersion | relatedIdentifiers | direct | relation.has-version | |
| IsCitedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only; citing DOIs not in the work record |
| IsContinuedBy | relatedIdentifiers | partial | relation.is-continued-by | In the relation schema; essentially undeposited |
| IsDerivedFrom | relatedIdentifiers | partial | relation.is-derived-from / is-based-on | Derivation vocabulary differs; rarely deposited |
| IsDocumentedBy | relatedIdentifiers | partial | relation.is-documented-by | In the relation schema; essentially undeposited |
| IsIdenticalTo | relatedIdentifiers | direct | relation.is-identical-to | Used for mirrored / duplicate deposits |
| IsObsoletedBy | relatedIdentifiers | partial | updated-by / relation.is-replaced-by | The corrections-and-retractions model |
| RelatedItems Item Type | relatedItems | partial | reference[] | Reference entries are the closest analog to citation relatedItems |
| RelatedItems Relation Type | relatedItems | partial | reference[] | All references are an implicit "Cites" |
| IsPartOf | relatedIdentifiers | direct | relation.is-part-of | Also structural: container-title / ISSN for articles |
| IsPublishedIn | relatedIdentifiers | partial | container-title / ISSN | Structural in Crossref, not a relation |
| IsReferencedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only |
| IsSourceOf | relatedIdentifiers | partial | relation.has-derivation / is-basis-for | Rarely deposited |
| IsSupplementedBy | relatedIdentifiers | direct | relation.is-supplemented-by | |
| IsSupplementTo | relatedIdentifiers | direct | relation.is-supplement-to | |
| IsVariantFormOf | relatedIdentifiers | partial | relation.is-variant-form-of | In the relation schema; essentially undeposited |
| IsVersionOf | relatedIdentifiers | direct | relation.is-version-of | |
| Obsoletes | relatedIdentifiers | partial | update-to / relation.replaces | The corrections-and-retractions model |
| References | relatedIdentifiers | direct | reference[] | Crossref does not distinguish Cites from References |
| Share StewardshipSHARE0 direct · 1 partial · 4 unmapped of 5 | ||||
| Spatial Extent | geoLocations | none | — | No geolocation |
| Date Collected | dates | none | — | No collection dates |
| Date Coverage | dates | none | — | No coverage dates |
| Contributor Type | contributors | partial | role lists | Only editor / translator / chair; no contributorType vocabulary |
| Keyword | subjects | none | — | subject[] was retired in 2024 and now returns empty |
| Share HarmonizationSHARE4 direct · 6 partial · 1 unmapped of 11 | ||||
| Methods | descriptions | none | — | No typed descriptions |
| Resource Author Identifier | creators | direct | author[].ORCID | ORCID only; ~13% of works (22.0M) |
| Resource Contributor Identifier | contributors | partial | editor[].ORCID etc. | ORCID on the role lists; rare |
| IsCitedBy | relatedIdentifiers | partial | is-referenced-by-count | Count only; citing DOIs not in the work record |
| Abstract | descriptions | direct | abstract | JATS-XML markup; ~27% of works (44.8M) |
| Resource Author Affiliation Identifier | creators | direct | author[].affiliation[].id[].id | ROR; ~0.7% of works (1.15M), growing |
| Resource Contributor Affiliation Identifier | contributors | partial | editor[].affiliation[].id[] etc. | Structurally present, rarely deposited |
| Resource Author Identifier Type | creators | partial | (implicit) | Always ORCID when present |
| Resource Author Affiliation Identifier Type | creators | direct | author[].affiliation[].id[].id-type | "ROR" |
| Resource Contributor Identifier Type | contributors | partial | (implicit) | Always ORCID when present |
| Resource Contributor Affiliation Identifier Type | contributors | partial | editor[].affiliation[].id[].id-type | Structurally present, rarely deposited |
| Share AccessSHARE0 direct · 3 partial · 1 unmapped of 4 | ||||
| Rights Identifier | rightsList | none | — | No SPDX identifier; derivable from license URL |
| Rights | rightsList | partial | license[].URL | URL only — no rights name; derivable from the URL |
| Date Available | dates | partial | license[].start | License start / embargo delay approximates availability |
| Resource Format | formats | partial | link[].content-type | MIME types of full-text links only |
| Share ReuseSHARE1 direct · 1 partial · 2 unmapped of 4 | ||||
| IsSourceOf | relatedIdentifiers | partial | relation.has-derivation / is-basis-for | Rarely deposited |
| Discovery Metrics | viewCount | none | — | No view counts |
| Access Metrics | downloadCount | none | — | No download counts |
| Citation Metrics | citationCount | direct | is-referenced-by-count | |
| Share EngagementSHARE6 direct · 2 partial · 4 unmapped of 12 | ||||
| JournalArticle | relatedIdentifiers | partial | relation.is-preprint-of | Preprint→article links type the target implicitly |
| Preprint | relatedIdentifiers | direct | relation.has-preprint | |
| ConferencePaper | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| ConferenceProceeding | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Dataset | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Software | relatedIdentifiers | none | — | Needs the related item's resource type, which Crossref relations don't carry |
| Project Funder | fundingReferences | direct | funder[].name | ~9% of works (15.6M) |
| Funder Identifier | fundingReferences | direct | funder[].DOI / funder[].id[] | Funder Registry DOI today; RORs arriving as the registry merges into ROR |
| Award Title | fundingReferences | partial | grant records (type=grant) | Works carry award numbers only; titles live on Crossref grant DOIs |
| Award Number | fundingReferences | direct | funder[].award[] | |
| IsVersionOf | relatedIdentifiers | direct | relation.is-version-of | |
| Funder Identifier Type | fundingReferences | direct | funder[].id[].id-type | "DOI" (Funder Registry), "ROR" |
{"message": …}; a work list is message.items[] with fields at the top level — no attributes wrapper. Every jq query needs its path prefix rewritten, and the strict non-empty guards carry over unchanged./works?sample=100 returns a true random sample (max 100 per call) — repeat and dedup by DOI, the same pattern the tools already use for DataCite's random=true.filter=ror-id:<ROR> selects works carrying the organization's ROR (12,912 for Wageningen today vs 6,764 in DataCite), and facet=publisher-name or facet=funder-doi can play the client-facet role. Note the population is ~0.6% of works so far — publisher-asserted RORs are young in Crossref.filter=type:journal-article,from-pub-date:2024-01-01,has-orcid:true. Counts come free from total-results with rows=0.mailto= to every request (or a User-Agent) to reach the polite pool; page with cursor=* for deep result sets.type (30 values) → resourceTypeGeneral, and Crossref relation keys (is-supplement-to…) → DataCite relationTypes are mechanical renames; both are enumerated in this page's CSV companion.