Karma3 Labs is building a ranking and reputation infrastructure using the EigenTrust algorithm.
Using the protocol, developers can create recommendation and sybil-resistance systems for web3 social graph protocols and embed on-chain reputation scoring within their communities. Developers can also power search and discovery for marketplaces and consumer applications.
The founding team has experience in building both web3 infrastructure (Ethereum, Harmony, Celo, libp2p) and web2 infrastructure (Google Cloud and PageRank, Facebook Horizon platform). The team is working with design partners across decentralized social graphs, wallets, payments and marketplaces categories.