Following the completion of the AdChain whitepaper, the authors began to discuss other potential applications of the system. In the weeks following we entertained several ideas that left us increasingly curious as to the system's complete potential. After discussing the AdChain paper in depth with Karl Floersch and discovering he had designed very similar system (never implemented) for the Ujo project in September of 2016, the lightbulb went off as to the underlying system's genericity. At the urging of James Young, Mike Goldin wrote Token-Curated Registries 1.0. Token-curated registries are cryptosystems for decentrally curating lists, with intrinsic economic incentives for token holders to curate the list's contents judiciously.