I don't care to prove to anyone who I am (hence pseudonymous) - however I do care to prove what I say. Being able to prove I am who I say I am allows me to also

I don't care to prove to anyone who I am (hence pseudonymous) - however I do care to prove what I say. Being able to prove I am who I say I am allows me to also prove what I say is what I say. I'm not particularly famous - but in a few social circles I have authority. Enough authority that it is important that people are able to verify within good measure if it was really me who said something or not.