Prove you are not a robot

293 words

You have probably heard the latest AI news cycle, this time the news is about a language model. Let’s forget for a second about the minutiae of how dishonestly the achievement was presented and whether or not the software should be released to the public, other people have done that better than I ever could. I want to point at a cute problem related to authorship and suggest a possible solution.

In a future where most text will be governmental and commercial propaganda written by software, would people want to make sure they only read text written by other sentient beings? Or would at least old people like future me want that? And will that be a rational preference, or just anti-robot prejudice?

Let’s suppose that knowing whether a text is human-written is desireable. How could the future people go about doing that, and can we do anything now to help them?

The interesting case is in verifying that an anonymous self-hosted blog is human-written, or anonymous comments on such a blog. Most other cases seem to be trivially solvable either by having national governments verify digital identities or using interactive protocols (like Turing tests and captchas).

I’ll describe one possible avenue, useable only by anonymous internet users who act now, and possibly only for low stakes. The trick is to generate a pgp key and use it to sign every bit of content you create. The uniqueness of the signature (no two people can claim the content for their own) is established jointly by all internet archiving institutions, who also implicitly timestamp all data. All well-written text from before 2020 has been written by humans, so if you can claim authorship on a good share of that text then you are solid.