How to use the Bool Bridge?

What is Bool Bridge?

Bool Bridge allows transferring BTC from the mainchain to Fractal as a BRC-20 token and vice versa. This enhances interoperability and unlocks opportunities for decentralized applications.

The assets that are available for transfer are:

• BTC <> bBTC

• ordi <> bORDI

• sats <> bSATS

Please do your own research. This guide serves only as a reference for users.

Connect your UniSat wallet

Step 1: Go to https://fractal.boolbridge.com/.

Step 2: Click “Connect wallet”.

Step 3: Ensure you have the UniSat Wallet installed on your browser. You can download it through https://unisat.io/download or the Chrome web store.

Please make sure you are:

🔶 using the latest version of the extension. 🔶 using a Taproot wallet. Understand the different types of wallet addresses here.

Bridging Bitcoin to Fractal Assets (e.g. bBTC)

Step 1: Choose the asset that you would like bridge from the Bitcoin mainnet to Fractal.

Step 2: Enter the amount you would like to bridge to Fractal.

Step 3: Press “Deposit” when you are ready.

Step 4: In the pop-up window, check if the input and output addresses correspond to your desired destination. If the details are right, click “Sign” to confirm the transaction.

Step 5: The transaction is now sent. You can track your transaction on the mempool explorer by clicking “View on explorer”.

Bridging Fractal Assets (e.g. bBTC) to Bitcoin

Step 1: Click this arrow to switch to transfer from the Fractal BItcoin mainnet.

Step 2:

a. Click ”Refresh” to transfer your inscriptions.

b. A pop-up window will appear, allowing you to select your desired output value and fee rate. To prioritize your transaction during periods of high network congestion, you can enable the "Replace-By-Fee (RBF)" option, which allows you to modify the transaction fee for quicker processing. After configuring your settings, click "Next" to proceed.

Step 3: Check if the details of your transfer are correct. Click “Next”.

Step 4: Once your inscriptions are successfully processed, it may take a few minutes for them to be indexed and appear on the interface.

Step 5: Once your inscriptions have been indexed, they will appear as selectable options in the interface. Click on the inscription you wish to transfer, as shown below, to confirm your selection.

Step 6: To confirm your transfer, click “Withdraw”.

Step 7: In the pop-up window, check the details and sign the transaction.

Step 8: The transaction is now sent. You can track your transaction on the mempool explorer by clicking “View on explorer”.

Viewing Your Transaction on The Explorer

Option A: Click the link on the transaction confirmation page

Option B: Click "History”.

a. To view the transaction in the Bitcoin mempool explorer, click the link located below the BTC amount.

b. To view the transaction in the Fractal mempool explorer, click the link located below the Fractal asset.

Block Confirmation Times

Please note that the Fractal Bool Bridge requires four confirmation blocks on Bitcoin before it shows in your Fractal balance. This is to ensure the security of the assets. In general, it will take between 30-40 minutes for you to receive your bBTC on Fractal.

Checking bBTC Assets in Your UniSat Wallet

To check all bBTC addresses, access this link: https://explorer.unisat.io/fractal-mainnet/brc20/bBTC___

To check your bBTC assets, access this link: https://fractal.unisat.io/address/account?tab=brc20.

Step 1: Connect your wallet.

Step 2: If your wallet holds any bBTC, it will be displayed in the interface under the BRC-20 section, showing the available and transferable amounts.