Can anyone help me understand how these last 4 digits are assigned in an item's JSON? I'm viewing a web map's JSON in AGO assistant and know that I have to replace them when I change out feature service references, but I am having trouble understanding the why on this particular part of the process.
![HillarySherrill_0-1655916160131.png HillarySherrill_0-1655916160131.png](https://community.esri.com/t5/image/serverpage/image-id/44037iE83230F259726C85/image-size/medium?v=v2&px=400)