does JSON really supports pointers?
As far as I can understand it does to some level, please check these sites, but take any information from the official one (first):
Of course I can be somewhat wrong, maybe someone with more knowledge can help you out more…
JSON support 6 data type by default. The object, Array, String, Number, Boolean and Null. You will need to have another plugin to add pointers data type in JSON [More importance in retrieving pointers]