Pre-execution brief Collateral onboarding · bounded caps

Ethena `EthenaMinting` — Pending Collateral Onboarding Ops `0x1fe5...d85b` & `0x0ca0...7a90`

Pre-execution calldata, per-block mint/redeem cap parity, and directional stablesDeltaLimit audit for institutional USDe / sUSDe risk curators.

Protocol: Ethena
Timelock: 0xE8Dc…7c94 · 1d minimum delay
Operations: 0x1fe5e3…d85b 0x0ca0fc…7a90
Execution window: ETA 2026-11-14 10:20 UTC · 2026-11-14 10:20:35 UTC
State: Pending at finalized block #26,406,890 (2026-11-13 15:18 UTC) Scanner-pinned (L1 finalized)

Assets Onboarded

RLUSD & USAT

$1.918B (18d) + $179.32M (6d)

Timelock Window

1.00 Day (86,400s)

ETAs: 2026-11-14 10:20–10:22 UTC

Per-Block Mint / Redeem

200M / 20M USDe

Matches USDC, USDT & globalConfig

Adverse Delta Limit

0 bps Ceiling

stablesDeltaLimit == 0 enforced

1. What Is Queued & Why It Matters for USDe / sUSDe Allocators

In Ethereum Mainnet transactions 0x75e4afa406b66ac39b2d4a9faaec04577df7e83cac0b4ff1bf02f7bf56d17005 (block 26405406) and 0x0c6daf9d6977fbe221c4535b7febf38a46c46a58f59ce277bbb512b0996ff015 (block 26405415), Ethena's 5-of-10 Proposer Safe (0x3B0AAf6e6fCd4a7cEEf8c92C32DFeA9E64dC1862) scheduled two 24-hour operations on EthenaTimelockController (0xE8Dc0Fab349EA169283C48Ccfd09d797E6DB7c94) targeting EthenaMinting (0xe3490297a08d6fC8Da46Edb7B6142E4F461b62D3):

Op 0x1fe5e3e892708310bbfcf50efc03a1b8e21e0d0042035d7e8315e0cd5f26d85b (ETA 2026-11-14 10:20:35 UTC): Calls addSupportedAsset(0x8292Bb45bf1Ee4d140127049757C2E0fF06317eD, (0, true, 200000000e18, 20000000e18)), onboarding Ripple USD (RLUSD) (scanner dual-RPC symbol() / decimals() / totalSupply() at block 26406429, hash 0xb65c04eeddc59de1affade1a5e76250fed78467ad3a69f5d292c5e5f089dab84: 18 decimals, observed L1 supply 1,917,942,633.70 RLUSD) as active TokenType.STABLE (0) mint/redeem backing.
Op 0x0ca0fcc4856b87f3df9a74532bd60db58d1310c27c17e7d9bfa8a56846f57a90 (ETA 2026-11-14 10:22:23 UTC): Calls addSupportedAsset(0x07041776f5007ACa2A54844F50503a18A72A8b68, (0, true, 200000000e18, 20000000e18)), onboarding Tether America USD (USAT) (scanner dual-RPC check at block 26406429, hash 0xb65c04ee...9dab84: 6 decimals, observed L1 supply 179,317,574.50 USAT) under identical TokenType.STABLE parameters.
Directional stablesDeltaLimit == 0 Semantics: Classifying an asset as TokenType.STABLE (0) subjects RFQ orders to verifyStablesLimit. With stablesDeltaLimit() == 0 on-chain, adverse pricing deviation is capped at 0 bps (mints reject usdeAmount > normalizedCollateral beyond sub-bps integer truncation; redemptions reject normalizedCollateral > usdeAmount beyond sub-bps truncation).
Issuer Counterparty Expansion: While per-block circuit breakers match existing USDC (0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) and USDT (0xdAC17F958D2ee523a2206206994597C13D831ec7) caps (200M USDe mint / 20M USDe redeem) and remain bounded by aggregate globalConfig() (200M / 20M USDe/block), execution expands USDe reserve eligibility to two regulated USD stablecoin issuers (Ripple and Tether America).

2. Deterministic Verification & Simulation Audit

Verification Check	Attributed On-Chain / Cryptographic Evidence	Status
OZ `hashOperation` Preimages	Independent verifier (block `26406275`): zero-predecessor, zero-salt hashes reproduce `0x1fe5e3e8...d85b` (`RLUSD`) and `0x0ca0fcc4...7a90` (`USAT`) on `0xE8Dc...7c94`	Pass
Pre-Execution Support State	Independent verifier (block `26406275`): queued schedule state & verified source confirmed; scanner archive read (block `26406106` / `26406207`): `isSupportedAsset == false` for both, `hasRole(DEFAULT_ADMIN_ROLE, 0xE8Dc...7c94) == true`	Pass
Archive Simulation & Access Guard	Scanner archive simulation (block `26406106` / `26406207`): `eth_call` of selector `0x7cfbc42f` from `0xE8Dc...7c94` returns `0x`; unprivileged caller reverts `AccessControl`	Pass
Cap & Decimal Normalization	Independent verifier (block `26406275`) & scanner token metadata (block `26406429`, `0xb65c04ee...9dab84`): `USAT` (`6` dec) & `RLUSD` (`18` dec) normalize to 18-decimal `USDe` units inside `verifyStablesLimit`; per-block caps match `globalConfig`	Aligned

3. Curator Monitoring Summary

Issuer Concentration & Liquidity Review (Before 2026-11-14 10:20 UTC): Vault curators underwriting USDe / sUSDe markets on Morpho, Aave, Euler, and Pendle should update backing-composition models to reflect RLUSD and USAT reserve eligibility alongside USDC and USDT. At block 26406429, observed L1 USAT supply was 179.32M while its configured per-block mint cap is 200M USDe (distinct measurements; gross single-block mint volume depends on token transfers, reuse, redemptions, and issuance).
Post-Execution Checks (After 2026-11-14 10:22 UTC): Confirm CallExecuted for 0x1fe5...d85b and 0x0ca0...7a90, verify stablesDeltaLimit() remains 0, and monitor Mint / Redeem event mix on 0xe3490297a08d6fC8Da46Edb7B6142E4F461b62D3.

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