Ethereum Classic (ETC) continues to evolve with enhanced tools that prioritize security, usability, and decentralization. One of the most significant upgrades in recent times is the redesigned Ethereum Classic multisig wallet, officially rebranded as Catacomb ETC Wallet by the ETC Cooperative in late 2022. This new version offers a modern user interface, improved functionality, and seamless integration with popular wallets like MetaMask—making it easier than ever to manage funds securely across the ETC network.
In this guide, we’ll walk you through the complete process of creating a new ETC multisig wallet on the Ethereum Classic blockchain using the updated Catacomb interface. Whether you're managing community funds, securing business assets, or simply exploring advanced wallet features, this step-by-step tutorial ensures clarity and confidence in your setup.
Why Use a Multisig Wallet on Ethereum Classic?
Before diving into the setup, it's important to understand why a multisignature wallet is a powerful tool for ETC users.
A multisig wallet requires multiple private key signatures to authorize a transaction—unlike standard wallets that need only one. This adds an essential layer of security, reducing the risk of theft or loss due to a single compromised key.
For example:
- A 2-of-3 multisig means at least two out of three authorized parties must approve a transaction.
- Ideal for teams, DAOs, or joint accounts where shared control is necessary.
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Step-by-Step Guide to Creating Your ETC Multisig Wallet
1. Access the Ethereum Classic Multisig Wallet
Begin by navigating to the official ETC multisig wallet platform:
https://multisig.etccooperative.org
This is the primary gateway to creating and managing secure multisignature wallets on the Ethereum Classic network.
2. Select the Network
Once on the homepage, locate the network selector in the top-right corner. Click the dropdown menu to choose which ETC network you’d like to use.
3. Choose “Classic” Network
You’ll see two options: Classic and Mordor.
- Classic: The main production blockchain for Ethereum Classic—this is where real ETC transactions occur.
- Mordor: A testnet used by developers for experimentation (no real value).
Since we’re setting up a functional wallet for actual use, select "Classic".
4. Connect Your Wallet
Look for the red “Connect Wallet” button in the upper-right corner and click it. This initiates the connection between your personal wallet and the multisig interface.
5. Click “Connect”
A modal will appear prompting you to proceed. Click the “Connect” button to move forward.
6. Choose Your Wallet Provider
You’ll now see a list of supported wallet integrations. In this example, we’ll use MetaMask, one of the most widely adopted Ethereum-compatible wallets.
Select MetaMask, and your browser extension should automatically open if installed.
7. Log In to MetaMask
Enter your credentials or restore phrase to unlock MetaMask. Ensure you're logged into the correct account you intend to link with the multisig setup.
8. Select the Address to Connect
MetaMask will prompt you to choose which ETC address to connect. If you have multiple accounts, pick the appropriate one. Then click “Next”.
9. Confirm Connection
Review the connection request and click “Connect” in MetaMask to finalize the link between your wallet and the multisig application.
10. Create a New Multisig Wallet
With your wallet connected and the network set to Classic, you can now create your secure vault. Click “Create new Safe” to begin configuring your multisignature setup.
11. Name Your Multisig Wallet
The next screen prompts you to assign a recognizable name to your wallet. This helps identify it later, especially if managing multiple safes.
12. Enter a Custom Name
Type in a descriptive label—such as “Team Treasury” or “Project Alpha Multisig”. We used “DBA - Multisig” in our test, but choose something meaningful for your use case. Click “Next” when done.
13. Add Wallet Owners and Set Signing Threshold
This is a critical step: defining who controls the wallet.
Click “Add new owner” to input the ETC addresses of each participant (e.g., Donald, Bob, Alice). You can add up to several owners depending on your needs.
Then, set the signing threshold—the minimum number of approvals required for any transaction.
Common configurations:
- 1-of-3: Any single owner can send funds (least secure)
- 2-of-3: Majority approval needed (recommended balance of security and usability)
- 3-of-3: All owners must sign (maximum security)
We selected 2-of-3, ensuring no single party can unilaterally move funds.
Click “Next” after configuration.
14. Review Your Settings
Double-check all details:
- Owner addresses
- Signing threshold
- Estimated network fee
The app displays the gas cost for deploying your multisig as a smart contract on-chain. Fees vary based on network congestion.
If everything looks correct, click “Next” to proceed with deployment.
15. Confirm Deployment in MetaMask
Your connected wallet (MetaMask) will now prompt you to confirm two actions:
- A transaction to deploy the multisig smart contract.
- Authorization for interaction with the Safe interface.
Click “Confirm” in MetaMask to initiate on-chain creation.
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16. Monitor Deployment Status
After confirmation, the Catacomb interface shows real-time progress of your wallet deployment. This includes transaction status updates from the ETC blockchain.
Wait several minutes while the smart contract is deployed and verified.
17. Do Not Close the Window
While processing, do not refresh or close the browser tab. The interface needs to remain active to properly sync your new wallet with the application backend.
18. Processing Complete – Return to Dashboard
Once completed, you’ll receive a notification that your multisig wallet has been successfully processed. Full functionality may take additional time to activate as blockchain data propagates.
Navigate back to the homepage to verify your newly created wallet appears in your dashboard.
19. Your ETC Multisig Wallet Is Live!
Congratulations—you now have a fully functional Ethereum Classic multisignature wallet secured on the blockchain.
You can use this wallet to receive ETC, initiate outgoing transfers (requiring required signatures), and manage permissions over time.
Future guides will cover:
- How to execute transactions
- Adding or removing owners
- Exporting and importing wallet configurations
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Frequently Asked Questions (FAQ)
Q: What is a multisig wallet?
A: A multisignature (multisig) wallet requires multiple private keys to approve transactions, enhancing security by preventing single-point control over funds.
Q: Can I use this wallet with networks other than Ethereum Classic?
A: The Catacomb ETC Wallet supports both the ETC mainnet ("Classic") and its testnet ("Mordor"). It is specifically designed for Ethereum Classic compatibility.
Q: Is there a fee to create a multisig wallet?
A: Yes. Deploying a multisig involves writing a smart contract to the blockchain, which incurs a gas fee paid in ETC. Fees depend on network activity at time of creation.
Q: What happens if I lose access to one of my owner keys?
A: As long as you meet the signing threshold with remaining keys, you can still operate the wallet. However, losing too many keys could permanently lock funds—backup planning is essential.
Q: Can I change the number of required signatures later?
A: Yes. Owners can collectively propose changes to settings like threshold or membership, which are then approved via standard multisig transaction流程.
Q: Is my data stored centrally?
A: No. The Catacomb ETC Wallet operates non-custodially—your keys and transaction data remain under your control, with no central server storing sensitive information.
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By following this guide, you've taken a major step toward safer, more collaborative asset management on Ethereum Classic. As decentralized ecosystems grow, tools like the Catacomb ETC Wallet empower users with trustless control and robust financial infrastructure—built for the future of blockchain.