Can someone help me understand how the difficulty number relates to the block hash?

Hey guys I'm trying to get a better understanding of how the difficulty number itself relates to the block hash.

I'm under the impression that as difficulty rises the block hash must be a smaller number than a certain threshold. Is this right?

So if I look at the dashboard at

Clark Moody

Under difficulty the number is 20x10^12. So does this mean the hash has to be any number below this number? That as difficulty goes up the number space for a valid hash goes down? Am I anywhere close? Help!

submitted by /u/artilekt
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