The Price of Forgery: measuring Sybil resistance in dollars (a

The Price of Forgery.pdf (968.6 KB) Proof of Personhood has run for over a decade without a way to measure itself. We pick human-verification methods - BrightID, Worldcoin, Idena, a passport scan ( each a real feat of engineering, with all due respect ) - on intuition and private trial-and-error, then route millions through them: quadratic funding, DAO treasuries, basic income, governance over AI. What’s missing is a shared number that says this method costs $X to break. The paper argues the only objective measure is the one the market sets - no committee or expert panel will produce one - and