# IfcGloballyUniqueIds spec description is incorrect - proposal to simplify

**URL:** https://forums.buildingsmart.org/t/ifcgloballyuniqueids-spec-description-is-incorrect-proposal-to-simplify/1083
**Category:** Developers
**Created:** [February 27, 2019, 10:58am UTC](https://forums.buildingsmart.org/t/ifcgloballyuniqueids-spec-description-is-incorrect-proposal-to-simplify/1083 "2019-02-27T10:58:49Z")
**Posts on this page:** 1
**Showing post:** 19

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### Author: ![Moult](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.buildingsmart.org/moult/32/196_2.png) [@Moult](https://forums.buildingsmart.org/u/Moult)
#### Post date: [August 13, 2020, 4:33am UTC](https://forums.buildingsmart.org/t/ifcgloballyuniqueids-spec-description-is-incorrect-proposal-to-simplify/1083/19 "2020-08-13T04:33:27Z")

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Bumping this thread - as discovered by [Project UUID not unique](https://forums.buildingsmart.org/t/project-uuid-not-unique/2869/7) - this issue of a UUID version not being specified is causing problems in project uniqueness. Hopefully this can be fixed in time for IFC5.

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