How to Check the Signature Threshold of a Multi-sig Wallet

The most direct way to check the signature threshold of a multi-sig wallet on a block explorer like Etherscan is to view its contract source code or read its state variables through official tools. For mainstream multi-sig solutions such as Gnosis Safe, the clearest configuration can be seen via the official app or dedicated inspection tools.

Prerequisites

Before you start, confirm two things:

• You have the address of the multi-sig wallet: This is the most basic requirement.

• Know which chain it is deployed on: Different chains use different explorers, e.g., Etherscan for Ethereum and BscScan for BSC.

A multi-sig wallet is a smart contract, not a regular externally owned account (EOA). An ordinary wallet address cannot be turned into a multi-sig; only a contract can implement multi-sig logic. If the address is shown as a normal address on the explorer, it cannot be a multi-sig.

Steps

Step 1: Find the "Contract" tab on the block explorer

Open the explorer for the corresponding chain (e.g., Etherscan), paste the multi-sig address into the search box, and go to the address details page. In the middle of the page, find and click the Contract tab.

• What counts as complete: You have entered the contract page and can see the "Read Contract" or "Write Contract" options.

Step 2: Locate the "threshold" or "required" variable

In the Read Contract area, scroll down and look for the following key variables:

• threshold: This is the variable representing the signing threshold in Gnosis Safe; its value is the number of signatures required.

• required or requiredSignatures: These variable names are commonly used in other multi-sig implementations (e.g., WalletSimple, MultiSigWallet) and mean the same thing.

• owners or getOwners: This variable lists all addresses with signing authority. Combined with the threshold, you can calculate the signing ratio (e.g., 2/3 means 2 signatures are required out of 3 owners).

In the Read Contract area, find and click the "Query" button for these functions to see the return values.

• What counts as complete: You have found the threshold or required field, seen the specific number, and also retrieved the owners list.

Step 3 (Optional): Use a dedicated multi-sig inspection tool

If manually locating variables is cumbersome, you can use ready-made tools. For example, the multi-sig security checker developed by yAudit lets you enter the Safe address and network, and it automatically returns complete configuration information, including the threshold, owners list, version number, and even a security score.

The official Gnosis Safe app is also the most straightforward way to view your Safe's configuration; after logging in, the homepage directly displays the signing ratio such as 2/3 or 3/5.

• What counts as complete: You have obtained a full configuration summary of the multi-sig through the tool, confirming the threshold and the owner list.

Step 4: Cross-verify through transaction patterns (optional)

On the Transactions tab, observe the transaction history: multi-sig transactions typically follow a distinct "submit – confirm – execute" three-step pattern, unlike the one-step process of regular wallets. If you see a transaction stuck in the pending list for a long time, it means the required number of signatures has not yet been reached.

Common Reasons for Failure

• The address is not a contract address: At the top of the explorer page, the address is usually labeled "Contract" or "Address". If it is shown as a regular address (EOA), it cannot be a multi-sig.

• The contract is not open source: If the contract source code is not published, you may not see clear variable names in "Read Contract". In this case, try using a dedicated multi-sig inspection tool to read the state, or check the transaction page for the multi-sig characteristic multi-step signing pattern.

• The multi-sig implementation is non-standard: Some teams may use a custom implementation where variable and function names differ from common templates. This is harder to inspect but extremely rare.

Risk Reminders

• The signature threshold is only one of the control conditions: Knowing the threshold is 2/3 tells you that at least 2 signatures are needed to move funds. But what truly matters is whether those 3 signers are actually controlled by 3 different individuals. If all 3 private keys are held by the same person, a high threshold becomes meaningless.

• The owner list can be modified: Some multi-sig implementations allow changing the owners list and threshold through proposals. Checking the current configuration only provides a snapshot and does not guarantee it won't change in the future.

How to Confirm You Have Completed the Check

Open a block explorer, find the multi-sig contract's threshold variable, see the number (e.g., 2), then find the owners list with 3 addresses. Now you can say about the contract: "This is a 2/3 multi-sig wallet, requiring at least 2 signatures to move assets." If you are using the official Safe tool, the homepage directly displaying 2/3 or 3/5 conveys the same information.