What is Master Public Key (xpub)?


A master public key is a key that can be generated from the wallet`s master private key (either the same thing as the `seed` or a derivative of it) that has the power to generate all of the addresses in a Bitcoin wallet, but none of the private keys. Someone with access to a master public key cannot actually spend the balance because they have no way of generating the private key corresponding to each address.


Finding Master Public Key and First Address


You can find xpub in HD wallets:

Electrum

1. Master Public Key:
- Create a new wallet then click `Wallet` menu and select `Master Public Keys`.
- Select text start with `xpub`. it is your wallet master public key.
2. First Address:
- If you do not see `Addresses` tab, click `Wallet` menu and select `Addresses`.
- in `Receiving` addresses select first address and right click and select `Copy address`. it is your wallet first address.

Copay

1. Master Public Key:
- Create a new wallet then click `Settings` and scroll to `Wallets and integrations` section.
- Click on your wallet name.
- Click `More options` and `Wallet Information`.
- Click `Settings` and scroll to `Wallets and integrations` section.
- Select text start with `xpub`. it is your wallet master public key.
2. First Address:
- Click `Home` and select your wallet.
- Click `Receive`, you see an address. Click on icon in right of address with `>` sign
- In address list select `xpub/0/0` address. it is your wallet first address.

Mycelium

1. Master Public Key:
- Create a new wallet then click `Accounts` tab.
- Select account name and click on top right menu and select `Export`. Confirm it.
- You see a text start with `xpub`. it is your wallet master public key.
2. First Address:
- Make sure you are using a new unused wallet (account).
- Click `Receive`.
- You see receiving address. it is your wallet first address.

Disclaimer: We are not affiliated with any business using our services and we are not money transfer service. We are not responsible for any possible fraud and would not be able to issue any refunds because you are paying DIRECTLY and INSTANTLY to merchant Bitcoin address and not ours.