Grants markup guide

All metadata records and identifiers registered with Crossref are submitted as XML formatted using our metadata input schema. Unlike other objects registered with Crossref, grants have their own grant-specific input schema. Version 0.1.1 of our Grants schema is available in our GitLab schema repository, as is a complete XML example.

Please note: as of version 0.1.1 a version attribute is required in the <doi_batch> schema declaration, for example:

<doi_batch xmlns="" xmlns:xsi="" xsi:schemaLocation="" version="0.1.1">

Members currently using version 0.0.1 do not need to provide a version number.

Grant and project metadata

Grant metadata by default includes a single or multiple projects. Multiple projects may be applied to a single grant but the DOI registered is applied at the grant level. Multiple grants may be included in a single XML file.

The metadata within each project includes basics like titles, descriptions, and investigator information (including affiliations), funding information such as funder names and identifiers from the Funder Registry, as well as information about funding types and amounts.

When registering a grant:

  • you must include required project information (a project title, a funder name and identifier, and a funding type) as well as your internal grant or award number
  • you should include a project description, language information, investigator details including ORCID IDs, ROR IDs within affiliations, and investigator country code; award amounts/currency, and project start and end dates and/or an award date (note that project or grant start/end dates are used to calculate current vs. backfile content registration fees).
  • you may include multiple titles and descriptions as well as language information; a funding scheme, and planned project start and end dates.

Project metadata

Project: Project metadata includes titles and descriptions (abstracts). Both can be supplied multiple times to capture information in different languages.

Element / attribute Description Limits
project Container for project information. Multiple projects may be assigned to a single Grant ID. required; multiple allowed
project-title Title of a project funded by the grant being registered required; multiple allowed
description Used to capture an abstract or description of a project. optional; multiple allowed
@xml:lang Use @xml:lang to identify language for each project-title or description. This allows you to provide multiple titles in different languages. optional

Investigators: Investigators are not required, but all applicable investigators should be included. Optional start and end dates may be used to capture investigators whose involvement is limited to a specific timeframe.

Element / attribute Description Limits
investigators container for investigator information optional
person container for individual investigator details at least 1 required, multiple allowed (unbounded)
@role available roles are lead_investigator, co-lead_investigator, investigator required
@start-date Date an investigator began work with the project optional
@end-date Date an investigator ended work with the project optional
givenName given or first name optional
familyName family or surname optional
alternateName alias or nickname used by the Investigator optional
affiliation container for affiliation information optional, multiple allowed
institution institution an investigator is affiliated with when associated with the project being defined. Multiple affiliations should be supplied where applicable 1 allowed, use multiple affiliation groups for investigators with multiple affiliations
@country ISO 3166-1 alpha 2-letter country code, captures location (country) of affiliation optional
ROR A ROR ID may be supplied to disambiguate affiliation information. optional
ORCID ORCID ID of the investigator, expressed as a URL optional

Funding details: Funding details include award amount, currency, funder details, and funding type.

Element / attribute Description Limits
award-amount total overall amount awarded to project optional
@currency ISO 4217 currency for value provided in award-amount required
funding container for funding information. Use multiple funding sections as needed to specify different funding types required, multiple allowed
@amount amount of funding provided by funder optional
@currency ISO 4217 currency for value provided in @amount optional
@funding-percentage percentage of overall funding optional
@funding-type type of funding provided, values are limited required
@null-amount supply for projects where an award amount is missing or can’t be disclosed - allowed values are: unknown, undisclosed, not-applicable other optional
funder-name name of the funder required
funder-id funder identifier from our Funder Registry required
funding-scheme scheme for grant or award as provided by the funder optional

Award dates: Dates can be applied at the project level (via award-date). An award-start-date may also be applied to the grant / award as a whole.

Element / attribute Description Limits
award-dates container for date information optional
@start-date actual start date of award optional
@end-date actual end date of the award optional
@planned-start-date planned start date of award optional
@planned-end-date planned end date of award optional

Funding types: Types of funding are limited to the following values:

  • award: a prize, award, or other type of general funding
  • contract: agreement involving payment
  • crowdfunding: funding raised via multiple sources, typically small amounts raised online
  • endowment: gift of money that will provide an income
  • equipment: use of or gift of equipment
  • facilities: use of location, equipment, or other resources
  • fellowship: grant given for research or study
  • grant: a monetary award
  • loan: money or other resource given in anticipation of repayment
  • other: award of undefined type
  • prize: an award given for achievement
  • salary-award: an award given as salary, includes intramural research funding
  • secondment: detachment of a person or resource for temporary assignment elsewhere
  • seed-funding: an investor invests capital in exchange for equity
  • training-grant: grant given for training

Grant metadata

We collect grant-specific metadata that is separate from the project information. This includes the funder-specific award identifier (grant number), the (optional) start date of the grant, related items, and the DOI and URL being registered.

Element / attribute Description Limits
award-number funder-supplied award ID /grant number required
award-start-date start date of grant funding optional
relation (as rel:program) relationship metadata connecting grant to other items (other grants, funded research outputs) optional
DOI DOI being registered required
resource URL of grant landing page required

Page owner: Patricia Feeney   |   Last updated 2021-August-16