ERC-4626 virtual-share offset (OZ ≥4.9)

USDD (Decentralized USD)'s assessment for RD-F-074 — scored not_applicable on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

USDD does not use an ERC-4626 vault structure. It is a TRC-20/ERC-20 stablecoin with a CDP minting mechanism. No share-price accounting, no virtual-share offset pattern to evaluate. PD-024 / ERC-4626-specific N/A.

Sources #

Internal
USDD protocol profile.research/protocols/usdd/00-profile.md §1 (category: CDP) and §3 (TRC-20 token architecture)retrieved 2026-05-17
URL
ChainSecurity Audit — USDD on EthereumChainSecurity audit — USDD on Ethereum and BSC (CDP, PSM contracts — not ERC-4626 vaults)retrieved 2026-05-17

Methodology #

Determine whether ERC-4626 vaults use OpenZeppelin ≥4.9 virtual-share offset pattern to prevent first-depositor share-inflation.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-074 score not_applicable collected_at 2026-05-17 11:34:18