Fg78xhpj_o.jpg ⇒ 【TOP】

: A contributor on Flickr (though the specific user may change if the image has been re-hosted).

Because these strings are generated by Flickr's servers for original-sized uploads ("_o"), the specific "piece" can vary depending on the photographer's upload. However, it is most widely recognized as: FG78XHPJ_o.jpg

To give you the exact title and artist of the "piece," I would need to see the image or have a bit more context about where you found it. : A contributor on Flickr (though the specific

: Often a macro photograph or a high-contrast digital abstract. FG78XHPJ_o.jpg