Nope, it isn't and we don't need "proof of humanity". Nonsense.
Why... do we need "proof of humanity"? Is this from some fear of AI? Don't fall for the AI fear mongering. Remember, when the media and politicians are trying to scare us, they want to take from us. Freedom, money, and sovereignty. Fine to have concerns about AI but it doesn't mean we all need to have our bio-metrics on a blockchain...