Chainlink aggregator min/max bound misconfig

USDD (Decentralized USD)'s assessment for RD-F-060 — scored gray on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

Chainlink aggregator min/max bounds for TRX/USD on TRON are not verifiable. Tronscan returns 403; TRON-side Chainlink adapter contract addresses are not publicly documented. The EVM Chainlink TRX/USD feed exists on Polygon mainnet but is a different deployment from the TRON substrate adapter. TRON-specific min/max bounds not obtainable.

Sources #

Internal
USDD Data Cache Coverage FlagsData cache coverage flag: non_evm_explorer_blocked=true; Tronscan HTML returns 403 — TRON-side Chainlink adapter addresses not retrievableretrieved 2026-05-17
URL
Chainlink TRX/USD Price Feed (Polygon reference)Chainlink TRX/USD feed on Polygon mainnet (reference only; TRON adapter not the same contract): https://data.chain.link/feeds/polygon/mainnet/trx-usdretrieved 2026-05-17

Methodology #

Determine whether the Chainlink aggregator's `minAnswer` and `maxAnswer` circuit-breaker bounds are misconfigured (too wide or too narrow) for the asset class.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol usdd factor RD-F-060 score gray collected_at 2026-05-17 11:34:18