For identity verification and privacy, I use a GPG key. The short signature is
0x44B6B4C7F1083AA7 and you can also look me up on the keyserver pools via my full name, “Andrew Reid East”, or my email, firstname.lastname@example.org. I might suggest https://pgp.mit.edu/
I can accept email encrypted with my public key. I also sign my git commits for security and verification.
I was able to participate in the keysigning party at FOSDEM 2018 in Brussels. It was great experience meeting people coming together from all over. Expanding the global web of trust as well as the trust in my own key through personal connections is a great goal. Figuring out the inner workings of PGP & GPG was also a sound way to learn some of the principles of cryptography and modern Internet security.