How to set up and use a shared multisig Bitcoin Cash wallet

In this article we'll cover how to set up and use a shared (multisig) Bitcoin Cash wallet in the Bitcoin.com Wallet app. If you don't know what a shared wallet is, you may want to start with this article. We've also compiled a list of shared wallet use cases.

Indice de Contenidos

  1. How to set up a shared Bitcoin Cash wallet
  2. How to share a shared Bitcoin Cash wallet
  3. How to join a shared Bitcoin Cash wallet
  4. How many participants and approvals can my shared Bitcoin Cash wallet have?
  5. What cryptocurrencies can I use shared wallets for in the Bitcoin.com Wallet?
  6. Why does my balance show 0 even though my transaction request is for a partial amount of my shared wallet’s balance?
  7. What is a transaction request?
  8. Is a transaction request different from an on-chain transaction?
  9. Can I delete a transaction request?
  10. Does every participant share a private and public key?
  11. How can I back up a shared wallet?

How to set up a shared Bitcoin Cash wallet

Shared wallets can be created using many desktop and mobile wallet apps. Let’s take a look at how to do it in the Bitcoin.com Wallet, the fully non-custodial crypto wallet trusted by millions. We are going to set up a Bitcoin Cash (BCH) shared wallet:

  1. Download and install the app.
  2. Tap +ADD/IMPORT.
  3. Select Add new shared wallet.

On the next screen, you’ll set up your wallet.

  1. Enter the asset type (Bitcoin Cash - BCH).
  2. Decide the number of approvals and participants.
  3. Enter the wallet name (eg. My Family Shared Wallet).
  4. Enter your name (this is the name that will be seen by the shared wallet participants).
  5. Tap continue.

How to share a shared Bitcoin Cash wallet

After you’ve set up your shared wallet (see above), you’ll be prompted to invite participants. There are two ways to invite participants:

  1. Ask them to scan the shared wallet’s QR code.
  2. Tap the SHARE button and send them a link to the wallet.

How to join a shared Bitcoin Cash wallet

There are two ways to join a shared wallet:

  1. Scan the QR code provided by the wallet creator (tap the scan button at the top-right of the app’s home screen).
  2. Tap the shared wallet link sent to you by the wallet creator.

You’ll be prompted to enter your name. This is the name that other wallet participants will see you as. Finally, tap JOIN to complete the process.

How many participants and approvals can my shared Bitcoin Cash wallet have?

A shared wallet must have a minimum of 2 participants, with a maximum of 6. There is a minimum of 1 approval and a maximum of 6. So, a 1-of-2 all the way up to a 6-of-6 wallet is possible.

What cryptocurrencies can I use shared wallets for in the Bitcoin.com Wallet?

Bitcoin Cash (BCH) and Bitcoin (BTC).

Why does my balance show 0 even though my transaction request is for a partial amount of my shared wallet’s balance?

Don’t worry, your remaining funds are still there.  While a transaction request is waiting to be approved or declined, available funds are locked. When funds are locked, we show a 0 balance. When the transaction request is approved or declined, your funds will unlock and your balance will be shown again.

The creator of a transaction request can use the delete request action to cancel the transaction and unlock funds.

What is a transaction request?

Before a transaction is broadcasted to the public network, it requires a certain number of approvals, based on the configuration of your shared wallet. For example, a 2-of-3 wallet requires 2 approvals before being broadcasted.

Is a transaction request different from an on-chain transaction?

Yes, kind of. A transaction request represents the initiation of an on-chain transaction. Before the transaction is broadcast to the blockchain, it first must get enough approvals based on the configuration of the shared wallet. Once the proper number of approvals is reached, the transaction will be automatically broadcasted.

Can I delete a transaction request?

Yes, as long as you are the creator of the request and it is still in the pending state, you can delete a request. All funds locked will be freed and made available to your wallet.

Does every participant share a private and public key?

In short, the public key, or the “address,” is same for all participants, but each participant gets their own unique “private key” (seed/recovery phase).

Technically, when a shared wallet is created, all participants are at first assigned their own unique public and private key pair. Once all participants have joined the wallet, a single common public key (aka “address”) is generated and displayed to all participants. This is the address that participants can provide when, for example, requesting a payment.

How can I back up a shared wallet?

Unlike "standard" Bitcoin Cash wallets, shared wallets must be manually backed up. For most people, the best way to manually back up a wallet is to write down the wallet's recovery phrase (also known as a seed phrase) on a piece of paper and store that paper somewhere safe.

Here's how to find your shared wallet's recovery phrase in the Bitcoin.com Wallet:

Method 1:

  1. From the home screen, tap on the shared wallet.
  2. Tap the menu button in the top right.
  3. Select "Show my recovery phrase."

Method 2:

  1. Tap the settings icon at the bottom left.
  2. Select "Backup & security."
  3. Select "Manual backup."
  4. Choose the wallet you want to show the recovery phrase for (Eg. My Family Shared Wallet).

Read more: Make sure your recovery phrase is safe with these password management tips.

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