All passed

EVK Vault eWMON-9

Euler EVK (eVault)Asset WMON0x850DaFb683743076F65d62D95e36EC9d04FB4B23Monad mainnet

All 30 properties passed at block 109,195,820. No counterexample was found; that is evidence, not a safety guarantee.

Known to the watcher from a backfill scan in block 109,195,820, 2026-09-30 09:50 UTC.

Request a re-checkRuns the same 30 properties at the latest block and attests the new report.

All 30 properties

In report order. Bit i is the bit the registry's passedBitmap and failedBitmap use for that property.

Bit	Property	Result	What was found
a16z/erc4626-tests at ac48546, 26 properties: 16 on EIP-4626 MUST sentences, 10 on SHOULD guidance (the round trips and the allowance checks)
0	`asset`test_assetEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: asset() does not revert
1	`totalAssets`test_totalAssetsEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: totalAssets() does not revert
2	`convertToShares`test_convertToSharesEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: convertToShares gives the same result for any caller
3	`convertToAssets`test_convertToAssetsEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: convertToAssets gives the same result for any caller
4	`maxDeposit`test_maxDepositEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: maxDeposit does not revert
5	`previewDeposit`test_previewDepositEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: deposit mints at least the shares previewDeposit quoted
6	`deposit`test_depositEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: deposit moves assets from the caller, credits shares to the receiver and spends allowance
7	`maxMint`test_maxMintEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: maxMint does not revert
8	`previewMint`test_previewMintEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: mint pulls at most the assets previewMint quoted
9	`mint`test_mintEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: mint moves assets from the caller, credits shares to the receiver and spends allowance
10	`maxWithdraw`test_maxWithdrawEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: maxWithdraw does not revert
11	`previewWithdraw`test_previewWithdrawEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw burns at most the shares previewWithdraw quoted
12	`withdraw`test_withdrawEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw burns owner shares, pays the receiver and spends share allowance
13	`withdraw-zero-allowance`test_withdraw_zero_allowanceEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw on behalf of an owner without allowance reverts
14	`maxRedeem`test_maxRedeemEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: maxRedeem does not revert
15	`previewRedeem`test_previewRedeemEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem pays at least the assets previewRedeem quoted
16	`redeem`test_redeemEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem burns owner shares, pays the receiver and spends share allowance
17	`redeem-zero-allowance`test_redeem_zero_allowanceEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem on behalf of an owner without allowance reverts
18	`RT-deposit-redeem`test_RT_deposit_redeemEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem(deposit(a)) returns no more than a
19	`RT-deposit-withdraw`test_RT_deposit_withdrawEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw(a) burns at least the shares deposit(a) minted
20	`RT-redeem-deposit`test_RT_redeem_depositEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: deposit(redeem(s)) mints no more than s
21	`RT-redeem-mint`test_RT_redeem_mintEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: mint(s) costs at least the assets redeem(s) paid
22	`RT-mint-withdraw`test_RT_mint_withdrawEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw(mint(s)) burns at least s shares
23	`RT-mint-redeem`test_RT_mint_redeemEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem(s) pays no more than mint(s) cost
24	`RT-withdraw-mint`test_RT_withdraw_mintEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: mint(withdraw(a)) costs at least a
25	`RT-withdraw-deposit`test_RT_withdraw_depositEIP-4626 SHOULD	Pass	No counterexample in 16 fuzz runs at this block. Checks: deposit(a) mints no more than the shares withdraw(a) burned
Specfirst max-honored properties, MIT, each on one EIP-4626 MUST sentence about a max function
26	`sf-maxDeposit-honored`test_sf_maxDeposit_honoredEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: deposit does not revert for amounts up to maxDeposit (EIP-4626: maxDeposit is the most deposit accepts without reverting)
27	`sf-maxMint-honored`test_sf_maxMint_honoredEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: mint does not revert for shares up to maxMint (EIP-4626: maxMint is the most mint accepts without reverting)
28	`sf-maxWithdraw-honored`test_sf_maxWithdraw_honoredEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: withdraw does not revert for assets up to maxWithdraw (EIP-4626: maxWithdraw MUST return 0 when withdrawals are disabled)
29	`sf-maxRedeem-honored`test_sf_maxRedeem_honoredEIP-4626 MUST	Pass	No counterexample in 16 fuzz runs at this block. Checks: redeem does not revert for shares up to maxRedeem (EIP-4626: maxRedeem MUST return 0 when redemptions are disabled)

Onchain attestation

Not attested yet.

CheckAttestationRegistry 0x3754...daF7 on Monad testnet holds no erc4626 attestation for this vault as of 2026-10-08.

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Replay this check

specfirst check 0x850DaFb683743076F65d62D95e36EC9d04FB4B23 \
  --standard erc4626 \
  --block 109195820 \
  --runs 16 \
  --seed 0xea68479b62ebdf3a5981def1141026b95fe51b5a183c08ba070ffbebb1456d97

Same block, runs and seed. The CLI draws a fresh random sender each run; the seed also salts the 16-user pool.

Report JSON

reportHash 0x0cf7bc...cf5120 is keccak256 of the report's canonical JSON (RFC 8785), the value the registry stores.

Badge and API

The badge and the JSON read the registry when they are loaded, so they follow new attestations without a rebuild.

[![Specfirst ERC-4626 check](/badge/check/143/0x850dafb683743076f65d62d95e36ec9d04fb4b23.svg)](/v/143/0x850dafb683743076f65d62d95e36ec9d04fb4b23)

JSON API Badge SVG

Implementation

Proxy: eip1967-beacon
Implementation: 0xef17750D3a162E28a302E266c474ff8989d60ECD
Implementation key: 0xdd21af250ff5c7001b35031d24abc55fd472370cf156a4146fe35134139c1901
Key from: Implementation behind the proxy: same compiler metadata and same code with immutables masked
Code hash: 0x55f4ba3003d257666b61168e1971daf28cda6fc76eaf51eb84b28ed830cfa87f
Code size: 366 bytes
Same key: 133 other vaults on this board

Run

Block: 109,195,820, Monad mainnet
Seed: 0xea68479b62ebdf3a5981def1141026b95fe51b5a183c08ba070ffbebb1456d97
Sender: 0x62C2ca9cCE37b610B921D4e6DC43c0b95dbb55cF
Runs: 16 per property
Delta: 0 base units
Forge: forge Version: 1.5.1-Homebrew
forge-std: bf647bd6046f
Reject limit: 4096
Harness: 0x5b48d4...a08890
sf properties: 0x612e00...26991e
suiteHash: 0x0842a8...11026f
Started: 2026-09-30 09:50 UTC, 34 s
Report: schemaVersion 3

Same implementation

Same code, different vaults. Their results can still differ through parameters, caps and assets.

and 73 more