Original title: "Inventory: Social ZK Project on Ethereum"
Original author: shrey jain, encryption researcher
Original compilation: Renaissance, ETH Chinese
In the Ethereum ecosystem, work on using zero-knowledge proofs (ZKPs) to improve privacy and scalability is very promising.
What I want to emphasize is that there is still a small group of people dedicated to social applications of ZKP technology on Ethereum. I define almost all applications that are not oriented toward scaling solutions or financial solutions as "social applications" (yes, money transfers are social, but I think readers can understand what I want to express in this article).
I recently tried asking people on Twitter what key projects there are in this area, and I've been delighted to get some comments and DMs that fit nicely into this article.
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Interep: Privacy reputation and identity systems allow services to verify that users belong to a certain group or meet certain reputation criteria without revealing their identity. Users can export their reputation anonymously from platforms such as Twitter and Github.
Relic Protocol: Relic Protocol uses ZKP to prove facts about arbitrary Ethereum's historical state, allowing users to prove their reputation based on their historical on-chain activity, and minting as SBT.
Sismo: Sismo is a modular protocol for issuing ZK badges for reputation portability and aggregation.
Sealcred: SealCred lets you experience the world anonymously using ZK Badges. This means that you can prove your ownership of an NFT without being traced back.
Unirep: Unirep allows anonymous members of an organization to give, receive, and prove reputation without revealing their identity. Applications or people can act as provers and build their own reputation tokens on top of the shared Unirep contract.
Worldcoin: Worldcoin has built a privacy-preserving proof-of-personality protocol.
zkPortal: Bringing personal data to web3 in a trust-minimized and private way: prevents Sybil attacks, enables 1P1V (one-person-one-vote) mode and helps DeFi stay compliant.
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Devfolio: An anonymous voting system completely on-chain.
Nouns DAO heyanoun: Provides a way for those snapshotted proposal nominators to anonymously submit messages about the proposal.
MACI: Minimum Anti-Collusion Infrastructure (Minimum Anti-Collusion Infrastructure) is the base layer for anti-bribery, security and privacy digital voting.
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designated-verifier-proofs: A cryptographic scheme compatible with Ethereum to ensure that only designated verifiers are persuaded to accept the information delivered to them, and that no 3rd party is sure that the designated verifier is telling the truth.
heyanon:heyanon, by personae labs, provides a way for people who organize or do cool things on ethereum to anonymously broadcast messages on twitter.
Sealcaster: Send messages anonymously on Farcaster.
Semaphore: Semaphore is a protocol that aims to be a simple general-purpose privacy layer for Ethereum DApps. Using zero-knowledge, Ethereum users can prove they are members of a group and send signals such as votes or endorsements without revealing their original identity.
zkEmail: On-chain trustless email verification. DevCon talks are more informative.
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