Is the PSP store still available?

Excuse me, I'm just wondering if the PSP store is still operational and accessible for users to browse and purchase games, themes, and other content? I've been out of the loop for a while and I'm curious if the platform is still active and supported by Sony or if there have been any changes to its availability in recent times. It would be great if you could clarify the current status of the PSP store for me. Thank you in advance for your assistance.