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What is the purpose of Credence and how does it work?

Credence is a platform that simplifies tracking and verifying identity and reputation on Optimism's AttestationStation for developers and users.

It enables cross-chain attestation, breaking down barriers between different networks, and offers a user-friendly interface, by providing an easy-to-read dashboard, search feature, and graph visualizations.

Features:

• User-friendly dashboard
• Search feature to quickly find attestation information
• Graph visualizations to better understand relationships and reputation
• Cross-chain attestation for seamless attestation across different networks
• Optimized data query with low latency using TheGraph

How to use Credence Platform?

• Visit the Credence platform at here
• Enter the address you want to query in the search bar
• Use the dashboard to view attestation information and visualizations
• Use the search feature to quickly find specific attestation information
• Use the cross-chain attestation feature to make attestations across different networks (currently only support Goerli to Optimism Goerli)

Technology Used:

• Frontend: Vite.js
• Web3 Integrations: Ethers.js, wagmi, and RainbowKit
• Smart Contracts: Solidity
• Backend Data Query: Custom GraphQL API built with TheGraph
• Cross-Chain Attest: Hyperlane.xyz's cross-chain messaging feature

Getting Started

How to start this project can refer to this starter-kit provided by Optimism.

Cross-chain contract setup:

Cross-chain Attestation need to deploy separately to different network, but the Receiver.sol will always be on Optimism network

TheGraph API setup

Refers to our OPAttest_Graph repo