★ Default bytes32(0) acceptable as valid root

Synapse Protocol's assessment for RD-F-154 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

NOT APPLICABLE — Synapse does not use a Merkle root acceptance model. Legacy bridge uses kappa mapping. RFQ uses keccak256(request) direct tx hash. SIN uses optimistic proof/dispute. No committedRoot-style mapping exists. Nomad-class exploit inapplicable.

Sources #

GitHub
https://github.com/synapsecns/synapse-contracts/blob/master/contracts/bridge/SynapseBridge.solretrieved 2026-04-26

Methodology #

Determine whether the bridge inbox accepts a default-value (bytes32(0)) Merkle root as a valid proof root (Nomad bug class).

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol synapse factor RD-F-154 score green collected_at 2026-04-26 21:35:35