# Identifiers for keywords

**URL:** https://discourse.gbif.org/t/identifiers-for-keywords/4489
**Category:** Data Publishing
**Created:** [June 3, 2024, 8:45pm UTC](https://discourse.gbif.org/t/identifiers-for-keywords/4489 "2024-06-03T20:45:58Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![sformel](https://sea1.discourse-cdn.com/gbif1/user_avatar/discourse.gbif.org/sformel/32/1179_2.png) [@sformel](https://discourse.gbif.org/u/sformel)
#### Post date: [June 3, 2024, 8:45pm UTC](https://discourse.gbif.org/t/identifiers-for-keywords/4489/1 "2024-06-03T20:45:58Z")

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I know that EML doesn’t include identifiers for keywords, although it can be done through annotations. What is the preferred syntax for including identifiers for keywords? For example, [ENVO recommends something](https://github.com/EnvironmentOntology/envo/wiki/Using-ENVO-with-MIxS) like `plant matter [ENVO:01001121]` for MixS.

But when I use [keywords from GCMD](https://gcmd.earthdata.nasa.gov/KeywordViewer/), for example, should I use the same bracketing convention for identifiers? Or does anyone have strong feelings that it should be recorded another way?