guid

guid is a required string field used by the sample aggregation system to uniquely identify the sample. The guid must be a unique identifier and it is the sample author's responsibility to assign a unique guid to their sample.

Go to https://www.guidgenerator.com to generate a guid for your sample. Check the Uppercase and Hyphens boxes and then click on the Generate some GUIDs! button. The guid field in your sample.json file should have a format similar to the following:

"guid": "01234567-89AB-CDEF-0123-456789ABCDEF"