5372360_014.jpg -

Where it was taken (if location services were on).

The make/model of the camera and technical specs (ISO, Shutter Speed). 5372360_014.jpg

Many stock photo agencies use a numeric prefix (5372360) followed by a sequence number (_014). Where it was taken (if location services were on)

Museums and digital libraries (like the Library of Congress or National Archives) use similar naming strings for digitized artifacts. 5372360_014.jpg