topic ArcGIS Server GPService Part Upload Commit Checksum has no effect in ArcGIS Enterprise Service Questions https://community.esri.com/t5/arcgis-enterprise-service-questions/arcgis-server-gpservice-part-upload-commit/m-p/1682310#M23 <P>Hi there,</P><P>I am currently implementing a .net client for consuming the geoprocessing service part upload REST api.</P><P>The commit endpoint accepts a checksum parameter which IMHO should verify that the file which was uploaded in parts is actually the file which was split up by the client.</P><P>See:&nbsp;<A href="https://developers.arcgis.com/rest/services-reference/enterprise/commit/" target="_blank">https://developers.arcgis.com/rest/services-reference/enterprise/commit/</A></P><P>The documentation lacks quite a bit of information:</P><UL><LI>How should the checksum be constructed (probably SHA251)?</LI><LI>How should the checksum string be encoded (probably BASE64 or HEX)?</LI></UL><P>I made some tests and also provided some nonesense checksums which were all accepted by the server. I suspect that this parameter has no effect at all.</P><P>Does anyone have any insights or experiences with this?</P> Thu, 05 Feb 2026 09:21:39 GMT marco_vertigis 2026-02-05T09:21:39Z ArcGIS Server GPService Part Upload Commit Checksum has no effect https://community.esri.com/t5/arcgis-enterprise-service-questions/arcgis-server-gpservice-part-upload-commit/m-p/1682310#M23 <P>Hi there,</P><P>I am currently implementing a .net client for consuming the geoprocessing service part upload REST api.</P><P>The commit endpoint accepts a checksum parameter which IMHO should verify that the file which was uploaded in parts is actually the file which was split up by the client.</P><P>See:&nbsp;<A href="https://developers.arcgis.com/rest/services-reference/enterprise/commit/" target="_blank">https://developers.arcgis.com/rest/services-reference/enterprise/commit/</A></P><P>The documentation lacks quite a bit of information:</P><UL><LI>How should the checksum be constructed (probably SHA251)?</LI><LI>How should the checksum string be encoded (probably BASE64 or HEX)?</LI></UL><P>I made some tests and also provided some nonesense checksums which were all accepted by the server. I suspect that this parameter has no effect at all.</P><P>Does anyone have any insights or experiences with this?</P> Thu, 05 Feb 2026 09:21:39 GMT https://community.esri.com/t5/arcgis-enterprise-service-questions/arcgis-server-gpservice-part-upload-commit/m-p/1682310#M23 marco_vertigis 2026-02-05T09:21:39Z