So you have a paper on your wallet, which can be used to obtain every password you use, using an intricate and very specific "algorithm".

Then you publish the fact itself and the algorithm in your blog(real name), which, besides, doesn't depend on a passphrase (which could turn your method in a sort of dual factor authenticator).

The paper could be photocopied and returned to your wallet and you'd never know.

Please, don't talk me about how many bits of entropy your passwords have. They aren't secure.