Hi it might sound silly but I dont really understand how blockchain technology could be implemented. Hence I am posting this question here.

What I am trying to do is; create an online portal where people will register and save their information.

But instead of saving users information in a usual database what I want to do is; I want to store them in blockchain.

For example:

I register on a website and then I create a book and start writing the first page.

once the first page is finished click on save button.

Now, this information should create a block and could be only opened by its author.

So everytime i add another page it should create a block and add to the blockchain.

my query is where will this blockchain saved? in database? or its a raw file which user could download on their own computer?