bug identification - What is this round, shiny black bug, about

I found this insect under my shirt while working, it is the first time I ever see something like that and it is kind of too small for me to tell what it is. I do not have a property measuring tool

bug identification - What is this round, shiny black bug, about

Small round black beetle found in the sand Columbia River, Oregon

I don't think it's a bed bug, tick, or flea. But I'm high key

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