# BRC20 Bridge (Testnet)

## Prerequisites

Before starting the bridging process between Bitcoin and SatoshiVM, ensure the following:

1. [**MetaMask Wallet**](/user-guide/testnet/wallet-setup.md)**:** Have MetaMask installed and configured to interact with the SatoshiVM Testnet.
2. [**UniSat Wallet**](/user-guide/testnet/faucet/bridge-from-bitcoin.md#wallet-setup-via-unisat)**:** Ensure your UniSat wallet is ready for the transaction process.
3. Understand [**brc-20 protocol**](https://domo-2.gitbook.io/brc-20-experiment/).

## Mint $sats for testing

### 1. Navigate to UniSat Testnet

Access [UniSat Testnet](https://testnet.unisat.io/brc20/sats) to mint $sats, a brc-20 token deployed on Bitcoin Testnet.

<figure><img src="/files/a55DDnHngA28XOVliDNT" alt=""><figcaption></figcaption></figure>

### 2. Mint $sats directly

Connect your Bitcoin wallet and mint $sats directly:

#### 2.1 Generate the text for minting

Click "Mint Directly" and follow the prompt to generate the text for minting.

<figure><img src="/files/boxBvfGkpTud8KA1ygou" alt=""><figcaption></figcaption></figure>

#### 2.2 Confirm the inscription details

Review the generated text and click "Next" to continue.

<figure><img src="/files/sYs6JTYskpBq7ghhPlIO" alt=""><figcaption></figcaption></figure>

#### 2.3 Fill in the recipient's address

Fill in your Bitcoin Testnet address to receive $sats.

<figure><img src="/files/nhDM6goYcnIMGffp3on8" alt=""><figcaption></figcaption></figure>

#### 2.4 Submit and pay the minting invoice

Submit and pay the prompted invoice to process the minting transaction.

<figure><img src="/files/thbF3icgi0dWHs0Q4M7C" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/9pW72w3PzYcyXpm39fbs" alt=""><figcaption></figcaption></figure>

### 3. Check your $sats balance in UniSat

{% hint style="warning" %}
Note that it generally takes a few minutes to get your BRC-20 balances updated in UniSat.
{% endhint %}

<figure><img src="/files/b25PDhZJ8NzWAkeanCNw" alt=""><figcaption></figcaption></figure>

## Deposit: Bridge $sats to SatoshiVM

### 1. Navigate to the official BTC bridge

Access the official [BTC Bridge page (Testnet)](https://testnet-bridge.satoshivm.io/) and select $sats for depositing.

<figure><img src="/files/t31K4yMMW48zcSIMoA5K" alt=""><figcaption></figcaption></figure>

### 2. Inscribe TRANSFER for depositing

According to brc-20 protocol, one has to inscribe the transfer function for a given amount before sending it to a desired recipient. Uninscribed brc-20 tokens are non-transferable.

{% hint style="warning" %}
Note that it generally takes a few minutes to get your transferable BRC-20 balances updated.
{% endhint %}

<figure><img src="/files/MaYPlwSUMhzpHI1SzUTL" alt=""><figcaption></figcaption></figure>

### 3. Deposit transferable BRC-20 on Bitcoin Testnet

#### 3.1 Select a transferable BRC-20 balance for depositing

<figure><img src="/files/gTUiIxCyrMgRchPAM6HG" alt=""><figcaption></figcaption></figure>

#### 3.2 Confirm the deposit transaction in UniSat

<figure><img src="/files/cj6QfxSO8fzY0Knrxqes" alt=""><figcaption></figcaption></figure>

### 4. Monitor progress on the History page

Once the deposit is initiated, monitor your transaction's progress on the SatoshiVM Bridge History page. This section provides real-time updates on the status of your deposit.

<figure><img src="/files/CSFWiwjJiVlwpyeGfu4f" alt=""><figcaption></figcaption></figure>

### 5. Check destination address balance via SatoshiVM Explorer

After completing the deposit, check the destination address balance using the [SatoshiVM Explorer](https://testnet.svmscan.io/). Confirm that the equivalent amount of $sats has been transferred to your SatoshiVM address.


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