EIP-712 domain separator missing chainId

USDD (Decentralized USD)'s assessment for RD-F-020 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Ethereum ERC-20 constructor explicitly takes chainId_ parameter for EIP-712 domain separation, including chainId. This prevents cross-chain replay. TRON TVM: EVM-specific EIP-712 pattern not applicable. Green.

Sources #

Etherscan
Usdd Stablecoin source - EtherscanUSDD Ethereum constructor with chainId_ parameter for EIP-712 domain separationretrieved 2026-05-17

Methodology #

Determine whether the EIP-712 domain separator struct omits the `chainId` field, allowing cross-chain replay.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-020 score green collected_at 2026-05-17 11:34:18