There was a site linked here yesterday, https://www.thc.org/segfault, that lets you set up disposable root servers - and they also have persistent Tor hidden service (.onion) hosting built in. You could host your essay on there and use one of the clearnet onion proxies, such as .onion.ws, to host it publicly.
(Or you could self-host an .onion, but this approach has someone else do all the fiddly technical bits for you.)
(Or you could self-host an .onion, but this approach has someone else do all the fiddly technical bits for you.)