/biz/ - Business & Finance

Has any one developed a blockchain that hosts data encrypted on the chain that can’t be viewed with out a key or token that allows that file or data to be uniquely unlocked?
What I’m thinking is
1-upload to chain a file
2-that file is encrypted so no one can plainly view it but it is on the chain forever
3-each time some one wants to access the file it is rewritten into a new block with matching key which is shared to that user (kinda like a mega folder system)
4-tokenomics for hosting revolve around miners writing things onto the chain uniquely for what ever fee?
5- wallet/file browser integration so you don’t have to download something to view it (example could be pdfs, images or movies which are banned or illegal in countries with censorship)

Am I schizo posting or is this kind of distribution of information a good idea?