Hi, Just ran into this, not sure how often it happens, but sometimes size value is zero when at least I don't think it should be: ➜ curl https://api.gbif.org/v1/occurrence/download/0000739-171109162308116 | jq . { "key": "0000739-171109162308116", "doi": "doi:10.15468/dl.jmachn", "license": "http://creativecommons.org/licenses/by/4.0/legalcode", "request": { "predicate": { "type": "greaterThanOrEquals", "key": "ELEVATION", "value": "11000" }, "format": "DWCA", "sendNotification": false }, "created": "2017-11-10T18:37:35.542+0000", "modified": "2017-11-10T18:38:54.444+0000", "status": "SUCCEEDED", "downloadLink": " http://api.gbif.org/v1/occurrence/download/request/0000739-171109162308116.z... ", "size": 0, "totalRecords": 14064, "numberDatasets": 105 } The file ends up having data in it, so it's not size 0. Best, Scott Chamberlain