It's now possible to mark links to your #Wikipedia user page as verified on Mastodon!
Documentation: https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Extension:RealMe
This was developed and implemented by @taavi who wrote it as a #MediaWiki extension, named "RealMe". It's open source (like all of the Wikipedia software) and can be used on any MediaWiki wiki: https://www.mediawiki.org/wiki/Extension:RealMe