Storage-layout collision risk across upgrades

Polymarket's assessment for RD-F-142 — scored green on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

CTFExchange V2 is not a proxy (no upgrade path, no storage collision risk). pUSD CollateralToken UUPS uses OZ Upgradeable storage layout; constructor calls _disableInitializers(); initial deploy only (no prior implementation version to collide with).

Sources #

GitHub
CollateralToken.sol — UUPS with _disableInitializers(); fresh deploy, no prior storage layout collisionPolymarket/ctf-exchange-v2/CollateralToken-constructorretrieved 2026-04-29

Methodology #

Determine whether the OZ upgrades-plugin or manual review flags a storage-layout collision risk between implementation versions.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol polymarket factor RD-F-142 score green collected_at 2026-04-29 16:25:39