There is no passport or social security number or mailing address for the internet. Google can't tell you a definite proof they will accept because none exists,

There is no passport or social security number or mailing address for the internet. Google can't tell you a definite proof they will accept because none exists, especially since copyright can be claimed on something as trivial as a line of text or a certain combination of bytes. It'll always be a judgement call on Google's part, and such a system will never be 100% accurate in either direction. If you want immediate and effective results then pay a lawyer.