DIY Cheap Provisional

Wouldn't it be a great idea to have every digital picture on the net hashed according to some algorithm that would make the picture a short string of characters? Range math can do that easily, and I have read on SecretDataBase that a U6 language can do just that. A great solution to filing a provisional application is mailing a notarized copy of the paperwork documenting an invention back to self. The procedure is not as official as what $105 as of today, if filing as a small entity with the US PTO would get an inventor - the price, at most, is the cost of the registered letter. As long as an attorney qualified in intellectual property is notified of this, the inventor would have a great recourse in case things come to prosecution.