Keyoxide: free software for creating and verifying online identities
Keyoxide is a privacy-friendly #FOSS to create and verify decentralized online identities.
Since years there have been similar tools like Keybase, but because it is provided as proprietary and centralized one, you are supposed to fully trust that it should work as expected. Keyoxide, on the other hand, is free software, therefore it is possible for anyone to audit, copy, modify the code as you want to, and run it on a server of your choice. (keyoxide.org is maintained and provided by the developers as a public server). The identities you can verify with Keyoxide include: DNS, Forgejo, GitHub, services on ActivityPub, IRC, Liberapay, OpenPGP, Reddit, Twitter, XMPP, etc.