Thanks for replying.
these spatial functions look cool and i would definitely use them. The thing is that the actual problem im' dealing with is a bit different... I model a 2D boxes and each one is defined by two 2D points. So as a result each neo4j node is composed of 4 integer values and i would like to create an index/constraint on that.
as for uuid solution, i gave it a brief read. But not sure if i understand it. As there doesn't seem to be any mapping between node properties and the uuid generated. I might just keep reading on that.
hash property looks good and i might go for that.
Thanks again!