Differences in ObjectID format

I am chasing some strange issues in Core Data and while investigating found that I have CoreData objects with different ObjectID format:


(lldb) po [itemsToUpdate[0] objectID]

0xd0000000000c003e <x-coredata://5EEF80E6-D329-4967-9F4A-62F949048201/Ticket/p3>


(lldb) po [itemsToUpdate[1] objectID]

0x7fa56d322fb0 <x-coredata:///Ticket/tCD8770CF-DAC3-4D36-8318-F38D7524E7041120>

What's the difference between these two?