[OSGeo-Standards] PROJJSON OGC Community Standard Submission?

[Rob Atkinson]

PS - fancy submitting "building Blocks" for PROJJSON and the STAC-projection extension to our experimental register of re-usable standards ?

Docs here:

Https://ogcincubator.github.io/bblocks-docs/<https://ogcincubator.github.io/bblocks-docs/>  - follow the links to the tutorial - others have successfuly used this to build sets of building blocks - in this case its simpler - just copy/edit one of the existing blocks

STAC sub-register is here - you could put things in here with a PR.

 Git: https://github.com/ogcincubator/bblocks-stac

Viewer: https://ogcincubator.github.io/bblocks-stac

I can support this if you want to give it a go.

(FYI  I have a workshop as FOSS4G in NZ but not sure if current registered attendance is going to make it viable - standards and FAIR standards is a bit of a niche subject compared to playing with tools.  Any people inspired let me know ASAP before I pull it..)

Rob Atkinson
Senior Research Engineer  | Open Geospatial Consortium (OGC)
Mobile: +61 419 202973
ratkinson at ogc.org<mailto:ratkinson at ogc.org> | ogc.org<http://ogc.org/> | @opengeospatial


[https://ci3.googleusercontent.com/meips/ADKq_NYvdzG5CnR-DX7WeJyPCnJuhbJ_G7lH1yVbaql72titKCiG-t4HQ92DiCCRM2jU42bDT20Ge7sBVIodm8VpmVBlrnTKCg=s0-d-e1-ft#https://portal.ogc.org/files/?artifact_id=99287]

________________________________
From: Standards <standards-bounces at lists.osgeo.org> on behalf of Howard Butler via Standards <standards at lists.osgeo.org>
Sent: Wednesday, November 12, 2025 2:43 PM
To: standards at lists.osgeo.org <standards at lists.osgeo.org>
Subject: Re: [OSGeo-Standards] PROJJSON OGC Community Standard Submission?

No takers, interest, or guidance on this topic?

> On Oct 31, 2025, at 12:37 PM, Howard Butler <howard at hobu.co> wrote:
>
> Hello,
>
> The PROJ project plans to submit PROJJSON as an OGC Community Standard.  The application document was initiated three years ago [1] by myself and Even Rouault, but we were waiting to see if the OGC CRS SWG would build upon PROJJSON to create a JSON based encoding of CRS.
>
> To date, no draft has been published, the survey at the previous OGC meeting was ambiguous about how the organization would move forward, and if the CRS SWG chooses to revisit ISO 19111 conceptual model enhancements and their reflection through a JSON CRS definition, that work will in all likelihood be backwards and forwards incompatible with PROJJSON. Given the current situation, we would like to move forward with PROJJSON as a Community Standard.
>
> In the interim since we initiated the submission, PROJJSON adoption has continued to grow. STAC was recently recognized as a OGC Community Standard at the Boulder Members Meeting [2], and its Projection Extension references PROJJSON. GeoParquet 1.1 [3] uses PROJJSON as its CRS definition, Parquet references PROJJSON as a possible definition in its spatial types[4], and Zarr is looking at it for its geo-proj Zarr extension [5].
>
> We believe it makes sense to resume the application process for PROJJSON to be also recognized as a community standard. Even has prepared an update of the application at https://github.com/OSGeo/projjson-submission/pull/3.
>
> Does OSGeo want to be mentioned as one of the submitting organizations? If so, what's the process for a project to submit one of its works to OSGeo as a Community Standard? A successful motion raised on this mailing list?
> Kind regards,
>
> Howard and Even
>
>
> [1] https://github.com/OSGeo/projjson-submission
> [2] https://www.ogc.org/announcement/ogc-announces-publication-of-the-spatiotemporal-asset-catalog-community-standards/
> [3] https://geoparquet.org/releases/v1.1.0/
> [4] https://github.com/apache/parquet-format/blob/master/Geospatial.md
> [5] https://github.com/zarr-experimental/geo-proj
>

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