> For the complete documentation index, see [llms.txt](https://docs.fiammalabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fiammalabs.io/our-product-suite/pragmatically-trustless-bitvm-bitcoin-bridge/user-guides/testnet-alpha/how-to-deposit-and-withdraw-on-fiamma-bridge.md).

# How to Deposit and Withdraw on Fiamma Bridge?

Prerequisite

To begin, you'll need wallets that support EVM-compatible and BTC addresses, along with the corresponding test tokens.

* Bitcoin Signet
  * Wallet: [Unisat](https://unisat.io/) (others coming soon)
  * Faucet: <https://signetfaucet.bublina.eu.org/>
* Ethereum Holesky Testnet
  * Wallet: [Metamask](https://metamask.io/) and others
  * Faucet: <https://www.holeskyfaucet.io/>

## How to Deposit

> Transfer sBTC from Signet to Holesky Testnet.

1. Connect Bitcoin Wallet - Unisat

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FDvOkp0hRjIasGywro2ED%2Fimg_v3_02gs_9236ece3-7c26-4f86-a525-085d6ce21dhu.png?alt=media&amp;token=dc1e90be-49af-4dcd-b06a-a1f7efe13f7b" alt=""><figcaption></figcaption></figure>

Please note that we only support Native Segwit and Taproot address types in alpha-testnet.&#x20;

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FT0YmEvacZvhROZY8K9qj%2Fimg_v3_02gs_af43b911-befc-4d65-bcef-4367cc16f4hu.png?alt=media&amp;token=ce2c45bd-320e-4479-a814-768a5bff9892" alt=""><figcaption></figcaption></figure>

2. Enter amount within `0.00001 ~ 0.0001sBTC`(Due to current liquidity constraints in our operator, we have implemented a temporary limit on amounts. We anticipate increasing these limits.)

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FKYtF0ExoSBS3EiayVxOe%2Fimg_v3_02gs_bdeda497-b65b-427f-955a-84da7905eehu.png?alt=media&amp;token=880ad884-dd3a-47eb-89f2-192a9ade87a6" alt=""><figcaption></figcaption></figure>

3. Please enter the recipient's address in the designated field, ensuring it is an ERC20-compatible address from the Holesky network.

> Or just conneting with the Metamask, which will autofill the address.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F6gLfLtPq8bGekYRpDFJk%2Fimage.png?alt=media&amp;token=73e02e05-01d6-4207-8c8a-57147fe980fb" alt=""><figcaption></figcaption></figure>

4. Confirm and hit deposit

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FSCKOltUHV4l5eKByBjPN%2F818d9f09-8f48-4cf7-9112-71d65dfea58a.jpeg?alt=media&amp;token=49603a8b-a61b-4166-9b6c-eabe29821adb" alt=""><figcaption></figcaption></figure>

5. Sign `PEG-IN` (Deposit) Transaction and pre-sign Take Transactions, which is prepared to pay back for Operator when they finish `PEG-OUT` (withdraw) operation.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2Fg5KhqnNrf2hYkQpa4kuW%2Fimg_v3_02gs_8008e31e-44c7-430e-bfec-630e3b6746hu.jpg?alt=media&amp;token=447ac37f-0be5-41c9-a3a1-f2ad949367af" alt=""><figcaption></figcaption></figure>

6. It will then proceed with processing.
7. Check your deposit (Peg-in) status by clicking the deposit transaction. &#x20;

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F96ms216HZ9aRQ05gMVCb%2F2afc9d55-b064-4863-a096-9563fbfe869b.jpeg?alt=media&amp;token=359dc7b7-3708-447a-b150-093b819d7768" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FkVeD3EaHNztUqXc3hNMT%2Fimg_v3_02gs_e88f30f7-8988-42b2-9cea-6a93904b3bhu.jpg?alt=media&amp;token=ab66389c-4872-429f-953c-8ab5073c1529" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FHbA8xifpkntcyWbJQBYT%2Fimg_v3_02gs_f4026fd5-460b-4083-94b5-d3a0cb4c69hu.jpg?alt=media&amp;token=e2f5d898-599b-43f3-b8ae-ca3313333dcf" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FkKJ0yDc4IDD1Db4fkkDS%2Fimg_v3_02gs_ecb1bb1a-eb2a-4663-aa6d-97ac672050hu.jpg?alt=media&amp;token=05d52c70-dc6a-41d3-aaca-d8bf7b4bb4e8" alt=""><figcaption></figcaption></figure>

8. Check your bridged BTC (mamaBTC) on Sidechain wallet.

   1. Add mamaBTC **`0x5636bB012F5176d75755691B623236971126Fdac`**  on Metamask
   2. Check the amount.

   <figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F4LRyEyIdrn4d6L32sPNm%2Fimg_v3_02gs_88b6404c-995c-4c14-a501-41f843fa38hu.jpg?alt=media&amp;token=9e2bed83-d3b9-44d1-821e-20e8e822eb3c" alt=""><figcaption></figcaption></figure>

## How to `PEG-OUT`

1. Connect EVM-compatible wallets (e.g., Metamask)

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2Fv8en8ZekskyocKWCAELs%2F20241124-163845.jpeg?alt=media&amp;token=b3c4df65-e82a-42ac-a02a-c44199e9befa" alt=""><figcaption></figcaption></figure>

2. Select `PEG-OUT` Amount (We will bring in external liquidity provider to achieve fully flexible amount in the future.)

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FtHFYhxKFfqqlgtRlRb1a%2Fd0e80137-af32-4f11-9dce-33d821ea2150.jpeg?alt=media&amp;token=7c3e92e3-6358-49c6-a4d5-d2db1b3e561e" alt=""><figcaption></figcaption></figure>

3. Fill out the recipient address on Bitcoin.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F5F57ANPY7oiJgoZoFKed%2F20241124-164526.jpeg?alt=media&amp;token=45176221-11b3-4fbe-8fb8-93ad108a6e30" alt=""><figcaption></figcaption></figure>

4. Confirm and Withdraw
   1. Withdraw

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FEoANZL2LEk7qauGBSjAe%2Fimg_v3_02gs_a86402b6-c4d6-46a0-8018-575646eb96hu.png?alt=media&amp;token=c47aa211-06f2-4197-ac1f-15a9117b65ae" alt=""><figcaption></figcaption></figure>

b. Confirm Withdraw and Sign Burn Transaction

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FKfbvuAvpL6g7v44akRrQ%2Fimg_v3_02gs_b3a1aa0b-667c-4a3e-98d8-ed617bc840hu.jpg?alt=media&amp;token=324b7b24-b6ff-4896-8e05-bd9ad4e63028" alt=""><figcaption></figcaption></figure>

5. Processing.&#x20;
6. Check your PEG-OUT (withdraw) status in history.

> This process may take 10-20 minutes to be confirmed on the Signet.

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2FjYUYowiqlt6EfkKMxdI7%2Fimg_v3_02gs_8e546016-21aa-4cc0-9347-192f40df1fhu.jpg?alt=media&amp;token=2e49a26b-556c-433c-8342-7806b176c0f1" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F1K4ovsMZdTfvaVYSvWLn%2Fimg_v3_02gs_098c5537-2c5b-4421-92bc-cd1a57000ehu.jpg?alt=media&amp;token=d63f916f-b61a-43ea-92a3-6fac55fbb28c" alt=""><figcaption></figcaption></figure>

<figure><img src="https://2784505184-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNaWxhWAPbrPeq8rIwJHB%2Fuploads%2F9xR6jxFcTqBMGbUzhVPQ%2Fimage.png?alt=media&amp;token=097fa4f0-32a2-400e-b230-56b80f623beb" alt=""><figcaption></figcaption></figure>