DataCite

How SESAR sample metadata maps to DataCite DOI records.

SESAR registers each sample IGSN as a DataCite DOI with resourceTypeGeneral PhysicalObject. This page is the mapping SESAR uses when it creates or updates that record.

The landing-page URL is {https://app.geosamples.org}/sample/igsn/{IGSN}. Publisher is always SESAR.

Field mapping

DataCite	SESAR source
doi / id	Sample IGSN
publicationYear	Year of publish date
types.resourceTypeGeneral	Always PhysicalObject
types.resourceType	Object type hierarchical path (for example Marine and lacustrine samples > Core). If none, legacy sample type name. If neither, Sample.
titles	Sample name, then object type path, then material path, then material name (verbatim), joined with spaces
subjects	Object type path; geological age; material path (see below)
creators	Registrant, then owner if different (see Creators)
contributors	Current archive as HostingInstitution (organizational). Affiliation is the archive's parent institution, with ROR when present.
dates	Last update date → Updated; sampling start date → Collected (date only, YYYY-MM-DD)
geoLocations.geoLocationPoint	Longitude and latitude
geoLocations.geoLocationPlace	Locality, country, city, province / state, and county, joined with spaces
relatedIdentifiers	Parent sample and related resources (see Related identifiers)
alternateIdentifiers	External sample ID and other names, type Local (see Alternate identifiers)

Object type in DataCite is the full hierarchical label. Material is general material type > specific material types when both exist; otherwise whichever material labels are present. If the sample still has only legacy classification, DataCite uses legacy top-level > legacy classification (or whichever of those is set).

Creators

Creators are ordered:

1. Registrant — a personal creator from the registrant's individual record (Family, Given when first and last names exist; otherwise the individual label or the user string). ORCID is included when the SESAR user has one. Affiliations come from the individual's current institution affiliations (ROR when the institution has one). If there are no current affiliations, SESAR uses institution detail as a name-only affiliation.

2. Owner, only if it is not the same person as the registrant:

• Team owner (when set) — an organizational creator using the team's display name, or the team name. Affiliations are the team's institutions, with ROR when present.

• Otherwise user owner — same personal-creator rules as the registrant.

Duplicate institution affiliations are omitted (same ROR, or same name if there is no ROR).

Related identifiers

On every write SESAR sends:

Relation	Type	SESAR source
IsPartOf	IGSN	Parent sample IGSN, when the sample has a parent
IsReferencedBy	DOI or URL	Each related resource URI. DOI stays DOI; any other non-local URI type is sent as URL.

On update, SESAR also keeps existing DataCite related identifiers whose relation is IsIdenticalTo (used for legacy IGSN identity).

Alternate identifiers

Type	SESAR source
Local	External sample ID
Local	All other names
Legacy IGSN	IGSN value from before migration to Datacite