Understanding Pre-forclosure lists

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Hello Bigger Pockets! 

I'm just getting started with my lists. I purchased several pre-foreclosure lists from Listsource and am trying to understand the data that I received. 

Can anyone explain the differences between Foreclose recent added date, Forclose effective date, Forclose original recording date, and forclose recording date to me? My lists are from Utah. 

I would greatly appreciate any insight! Thank you, 

Kristie