Semaphore

Basics

• A method of zero-knowledge signaling on Ethereum originally proposed by @barryWhiteHat.
• By the Token Economy mailing list #107:

"Semaphore is powering a Ethereum ZK-SNARK-based non-custodial mixer called MicroMix, currently deployed as a prototype on the Kovan testnet. The post goes in some level of technical details on how it's been architected and how it works (gas costs are still very high). 'It is so exciting to imagine the sort of privacy-enhancing applications and use cases that can emerge from it, such as anonymous login, anonymous DAOs, anonymous voting etc."