There used to be a page with my signed matrix device keys here. This page is now gone until
cross signing is finished and released, at which point a similar page, but then with my cross
signing keys will be put here instead.
Cross signing is mostly here now, but so far no client has the ability to manually mark cross signing keys as valid, or signing the cross signing keys of others, and except RiotX, no client even displays your own cross signing keys. So, for now, this page will remain a placeholder.