I liked some blockchain / crypto based ideas people were having - like you have to use crypto to even say something is fake or not. A journalist has to "pledge"

I liked some blockchain / crypto based ideas people were having - like you have to use crypto to even say something is fake or not. A journalist has to "pledge" crypto that a news is not fake and the smart contract releases the amount back based on certain evaluations like if the post was voted as fake or not etc. (I am sure as described there will be holes, but I like the direction it was heading.)