: You can check the "Exif" data of the image (right-click -> Properties/Get Info) to see the date it was taken, the device used, or the GPS location.

: Apple devices often rename photos to this format when they are synced to iCloud or uploaded to certain web services.

Because this filename is a unique string of characters assigned to one specific file on a private device or a specific database, there is no public "guide" or universal meaning associated with it. Why you might see this filename:

: If you actually have the image file, you can upload it to a search engine to see where else it appears online.

What is the of the image you’re looking for?

: Where did you find this string? If it was in a specific folder on your computer, looking at the surrounding files might give you a clue.