Dependency graph (protocols depended upon)

USDD (Decentralized USD)'s assessment for RD-F-050 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Key external dependencies: (1) Chainlink TRX/USD on TRON, (2) WINkLink TRX/USD on TRON (TR5HtpPK4gX4RFC4DCBUHfFgsGkGFEzSAb), (3) PSM USDT/USDC reserves (liquidity-dependent peg anchor), (4) JustLend (venue listing USDD — not a called dependency), (5) SunSwap V3 (liquidity venue, not oracle source). Yellow because TRON-side contract call graph not fully verifiable due to Tronscan being blocked; JustLend and SunSwap are venue dependencies not direct protocol dependencies.

Sources #

Docs
USDD Full DocumentationUSDD system architecture confirming Chainlink/WINkLink oracle dependency and PSM USDT/USDC dependenciesretrieved 2026-05-17
Internal
USDD Protocol Profile §7Profile §7 external dependencies; coverage flag non_evm_explorer_blocked=true blocks on-chain call graph verificationretrieved 2026-05-17

Methodology #

List all external protocols whose failure would directly impair this protocol (LST providers, bridges, stablecoin issuers, keepers).

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-050 score yellow collected_at 2026-05-17 11:34:18