EIP-712 domain separator missing chainId
Polymarket'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 #
EIP-712 domain separator uses OZ EIP712 base contract (_domainSeparatorV4()) which encodes block.chainid. Search results and docs confirm domain separator includes name, version, chainId, and verifyingContract.
Sources #
- GitHubCTF Exchange V1 Hashing mixinctf-exchange/src/exchange/mixins/Hashing.sol — domainSeparator = _domainSeparatorV4()retrieved 2026-04-29
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 polymarket factor RD-F-020 score green collected_at 2026-04-29 16:25:39