MultisigPEv2

This project is a dynamic multisig policy engine built for the 0G Galileo testnet. It lets organizations define and enforce transaction policies on-chain through a unanimous governance multisig. Each policy can include allowlists, denylists, per-transaction and daily USD value limits, contract verification requirements, ERC-7730 clear-signing registry checks, and a custom signer set.

When a user proposes a transaction, the target address, calldata, and value are encrypted and submitted to an EvaluationGateway contract. An off-chain evaluator service decrypts the payload, fetches the active policies from the PresetPolicyRegistry, converts the native token value to USD using a CoinGecko price oracle, and runs an 11-check simulation pipeline. Every check contributes to a weighted risk score from 0 to 100, and the score determines how many signers are required to execute the transaction.

The evaluator uploads a full receipt to 0G Storage and writes the attested result back on-chain. The MultisigWallet only executes after it has collected the required number of approvals and recorded the 0G Storage root in the AuditLog. This keeps sensitive transaction details private during the evaluation window while producing a transparent, tamper-evident audit trail for compliance and review.

The stack combines Foundry/Solidity smart contracts, a TypeScript evaluator service, a React/Vite frontend, and 0G Storage. The contracts were written in Solidity with Foundry and deployed to 0G Galileo (chain ID 16602): GovernanceMultisig enforces unanimous governance, PresetPolicyRegistry stores active policies, EvaluationGateway receives encrypted evaluation requests, MultisigWallet enforces signer thresholds and evaluator signatures, AuditLog records evaluation receipts, and WalletFactory clones full wallet instances.

The evaluator service uses viem to watch EvaluationGateway events, eciesjs for payload decryption, the 0G Compute TS SDK for AI calldata/intent analysis, the CoinGecko API for USD price conversion, the chainscan-galileo API for contract verification, and the Ledger ERC-7730 GitHub registry for clear-signing descriptors. It runs 11 weighted risk checks, uploads the receipt through the 0G TS SDK, and submits the result on-chain via EvaluatorVerifier ECDSA verification.

The frontend is built with React, TypeScript, and wagmi, allowing users to propose transactions, approve them, and view 0G Storage-backed audit logs. The entire system is containerized with Docker Compose and validated by 36 Forge tests and 37 Vitest tests.