Does the OTCBB still exist?

Is the OTCBB, or Over-the-Counter Bulletin Board, still operational today? It's been a long-standing platform for trading penny stocks and other securities that don't meet the listing requirements of major exchanges. But with the rise of alternative trading systems and new regulations, I'm curious if the OTCBB has retained its relevance in the world of cryptocurrency and finance. Can you provide some insight into its current status and how it's adapting to the evolving landscape?