Partly checked

0x86871c9bbA571bd958F6f3a77C10A1A64832A950

0x86871c9bbA571bd958F6f3a77C10A1A64832A950Monad mainnet

0 of 30 properties passed and none failed at block 111,063,658. 30 could not be exercised.

Found by the watcher at its first Deposit event in block 110,439,119, 2026-10-06 13:02 UTC. No factory the watcher follows announced it. It was not on the hand-made list the board started from.

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

What the watcher saw

Every event the watcher recorded for this vault, newest first. Each check is a statement about one block; a re-check with the same outcome is recorded here without a new attestation.

14:38:4310-06First result
Partly checked
0 pass, 0 fail, 28 inconclusive, 2 not applicable.
14:38:4310-06Checked
Partly checked
0 pass, 0 fail, 28 inconclusive, 2 not applicable at block 111,063,658, 1 min. Report
Why: first Deposit event from an unknown address.
13:02:2910-06Queued
Waiting for a check: first Deposit event from an unknown address.
13:02:2810-06Found
First Deposit event from an unknown address in block 110,439,119 tx 0x90e21b...6b32b1

JSON: this vault's history

All 30 properties

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



reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0

reason: maxDeposit returned 0 for every test user; there is no max value to honor (EIP-4626 allows underestimating)
runs: 0
reason: maxMint returned 0 for every test user; there is no max value to honor (EIP-4626 allows underestimating)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0
reason: `vm.assume` rejected too many inputs (4096 allowed)
runs: 0

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	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: asset() does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
1	`totalAssets`test_totalAssetsEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: totalAssets() does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
2	`convertToShares`test_convertToSharesEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: convertToShares gives the same result for any caller Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
3	`convertToAssets`test_convertToAssetsEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: convertToAssets gives the same result for any caller Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
4	`maxDeposit`test_maxDepositEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: maxDeposit does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
5	`previewDeposit`test_previewDepositEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: deposit mints at least the shares previewDeposit quoted Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
6	`deposit`test_depositEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: deposit moves assets from the caller, credits shares to the receiver and spends allowance Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
7	`maxMint`test_maxMintEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: maxMint does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
8	`previewMint`test_previewMintEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: mint pulls at most the assets previewMint quoted Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
9	`mint`test_mintEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: mint moves assets from the caller, credits shares to the receiver and spends allowance Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
10	`maxWithdraw`test_maxWithdrawEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: maxWithdraw does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
11	`previewWithdraw`test_previewWithdrawEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw burns at most the shares previewWithdraw quoted Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
12	`withdraw`test_withdrawEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw burns owner shares, pays the receiver and spends share allowance Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
13	`withdraw-zero-allowance`test_withdraw_zero_allowanceEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw on behalf of an owner without allowance reverts Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
14	`maxRedeem`test_maxRedeemEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: maxRedeem does not revert Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
15	`previewRedeem`test_previewRedeemEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem pays at least the assets previewRedeem quoted Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
16	`redeem`test_redeemEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem burns owner shares, pays the receiver and spends share allowance Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
17	`redeem-zero-allowance`test_redeem_zero_allowanceEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem on behalf of an owner without allowance reverts Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
18	`RT-deposit-redeem`test_RT_deposit_redeemEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem(deposit(a)) returns no more than a Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
19	`RT-deposit-withdraw`test_RT_deposit_withdrawEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw(a) burns at least the shares deposit(a) minted Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
20	`RT-redeem-deposit`test_RT_redeem_depositEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: deposit(redeem(s)) mints no more than s Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
21	`RT-redeem-mint`test_RT_redeem_mintEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: mint(s) costs at least the assets redeem(s) paid Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
22	`RT-mint-withdraw`test_RT_mint_withdrawEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw(mint(s)) burns at least s shares Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
23	`RT-mint-redeem`test_RT_mint_redeemEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem(s) pays no more than mint(s) cost Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
24	`RT-withdraw-mint`test_RT_withdraw_mintEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: mint(withdraw(a)) costs at least a Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
25	`RT-withdraw-deposit`test_RT_withdraw_depositEIP-4626 SHOULD	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: deposit(a) mints no more than the shares withdraw(a) burned Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
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	Not applicable	Nothing to honor: maxDeposit returned 0 for every test user. EIP-4626 allows a max to underestimate, so there was no advertised amount to hold the vault to. Checks: deposit does not revert for amounts up to maxDeposit (EIP-4626: maxDeposit is the most deposit accepts without reverting) Raw result reason: maxDeposit returned 0 for every test user; there is no max value to honor (EIP-4626 allows underestimating) runs: 0
27	`sf-maxMint-honored`test_sf_maxMint_honoredEIP-4626 MUST	Not applicable	Nothing to honor: maxMint returned 0 for every test user. EIP-4626 allows a max to underestimate, so there was no advertised amount to hold the vault to. Checks: mint does not revert for shares up to maxMint (EIP-4626: maxMint is the most mint accepts without reverting) Raw result reason: maxMint returned 0 for every test user; there is no max value to honor (EIP-4626 allows underestimating) runs: 0
28	`sf-maxWithdraw-honored`test_sf_maxWithdraw_honoredEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: withdraw does not revert for assets up to maxWithdraw (EIP-4626: maxWithdraw MUST return 0 when withdrawals are disabled) Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0
29	`sf-maxRedeem-honored`test_sf_maxRedeem_honoredEIP-4626 MUST	Inconclusive	Never exercised: the vault rejected nearly every amount the fuzzer tried, and forge gave up after 4096 discarded inputs. Checks: redeem does not revert for shares up to maxRedeem (EIP-4626: maxRedeem MUST return 0 when redemptions are disabled) Raw result reason: `vm.assume` rejected too many inputs (4096 allowed) runs: 0

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 0x86871c9bbA571bd958F6f3a77C10A1A64832A950 \
  --standard erc4626 \
  --block 111063658 \
  --runs 16 \
  --seed 0x4ae85637b08d9e76dee90a1b95c7982215a5f4e03855aa92265d79a0c17dc721

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 0x2b7885...82b729 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/143/0x86871c9bba571bd958f6f3a77c10a1a64832a950.svg)](/v/143/0x86871c9bba571bd958f6f3a77c10a1a64832a950)

JSON API Badge SVG

Implementation

Proxy: eip1167
Implementation: 0x48d9392Db46b00C291a2e29B1aC6C703b57024E2
Implementation key: 0xf6de5707e13ca6f2464a6ffd35ce790a410ed06d3d0adc9940a108116fe7c213
Key from: Implementation behind the proxy: same compiler metadata and same code with immutables masked
Code hash: 0x98945c4cac76da772718e48f71202515bf7101fed9719ae0a9af498348be97ad
Code size: 45 bytes
Same key: 141 other vaults on this board

Run

Block: 111,063,658, Monad mainnet
Seed: 0x4ae85637b08d9e76dee90a1b95c7982215a5f4e03855aa92265d79a0c17dc721
Sender: 0xe798Ca9a4b94A6c20E8766Bb94f16482C1C85fF2
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: 0xc4ee5c...1a6c0d
Started: 2026-10-06 14:37 UTC, 65 s
Report: schemaVersion 3

Same implementation

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

and 81 more