> For the complete documentation index, see [llms.txt](/ko/llms.txt). ## Mainnet Conversion In this section we will go over the steps of converting BTC to rBTC and vice versa in Bitcoin and Rootstock network. :::tip[Tip] The minimum amount of Bitcoin to convert is **0.005 BTC** for Mainnet. ::: ### BTC to rBTC conversion Instructions on how to do a Mainnet peg-in. ### 1. Get a BTC address with balance - Any Bitcoin wallet that supports legacy (`p2pkh`) private key works for this step. In this section, we use the Electrum BTC wallet for connecting to BTC Mainnet. 1. Download the wallet from [Electrum Website](https://electrum.org/) 2. Install Electrum 3. Start Electrum 4. Once Electrum starts, create or import a wallet 5. Go to the third tab "Receive". You will see a Bitcoin Testnet address like below: ![Create a Legacy (\`p2pkh\`) walletn](/img/legacy-private-key.png) > Note: Use a legacy Bitcoin wallet (not Segwit) with a public key beginning with `m` or `n`, and a private key prefixed by `p2pkh`. ### 2. Send Bitcoin to Rootstock Federation address Send Bitcoin to Rootstock Federation address - To retrieve the Rootstock Federation address: 1. Search the bridge contract address [0x0000000000000000000000000000000001000006](https://explorer.rootstock.io/address/0x0000000000000000000000000000000001000006) on the Rootstock Explorer. ![Get Federation Address](/img/concepts/rbtc/01-federation-address.png) 2. Go to Contracts tab --> Read Contracts and scroll to the 8th option which is `getFederationAddress()` and click the Read button. It should look like the screenshot below: ![Get Federation Address](/img/concepts/rbtc/03-federation-address-mainnet.png) Now, you can send Bitcoin to the Federation address via your Bitcoin address. > Note: You must send a minimum amount of `0.005 BTC`. ### 3. Wait for BTC confirmations - To ensure the transaction is successful, we need to wait for 100 BTC network confirmations. > 100 blocks * 10 minutes/block = 1000 minutes = 16.667 hours. That is, this will take approximately 17 hours. ### 4. Get rBTC address with BTC private key - You can get a corresponding rBTC address from your BTC private key by using the [Rootstock Utils](https://github.com/rsksmart/utils). If you do not want to compile the utility, you can download the [latest release](https://github.com/rsksmart/utils/releases/latest). > Note: when entering Bitcoin private key do not include *p2pkh:* in the front. ### 5. Check rBTC balance You can check balance of rBTC address on Metamask, MyCrypto, or any [Rootstock compatible wallets](https://blog.rootstock.io/noticia/rootstock-wallets/). > Note: You have to wait a minimum of 100 confirmations + a minimum of 5 minutes for checking your RBTC balance. ### rBTC to BTC conversion Instructions on how to do a Mainnet peg-out. ### 1. Get BTC address with rBTC private key You can get a corresponding BTC address from your rBTC private key by using the [Rootstock](https://github.com/rsksmart/utils). If you do not want to compile the utility, you can download the [latest release](https://github.com/rsksmart/utils/releases/latest). ### 2. Send rBTC to Rootstock Bridge Contract - [Rootstock Bridge Contract address](https://explorer.rootstock.io/address/0x0000000000000000000000000000000001000006): `0x0000000000000000000000000000000001000006` - Note: The minimum amount to send must be at least `0.004 rBTC` for Mainnet, sending any amount below this, will fail and funds will be reimbursed. The Gas Limit of the transaction needs to be manually set at 100,000 gas; otherwise the transaction will fail. Gas Price can be set to 0.06 gwei (or the gas price suggested by the wallet). ![Customize Gas in Metamask before send transaction on Rootstock](/img/metamask-gas-limit.png) ### 3. Check balance of BTC address - You can either use Electrum wallet downloaded earlier or from any Bitcoin explorer to check the balance. > Note: The release process on Bitcoin network takes 4000 Rootstock block confirmations and at least 10 more minutes. ## Testnet Conversion In this section we will go over the steps of converting t-BTC to tRBTC, and vice versa on the Bitcoin and Rootstock Testnets. :::tip[Tip] The minimum amount of Bitcoin to convert is **0.005 tBTC** for Testnet. ::: ### tBTC to tRBTC conversion Instructions on how to do a Testnet peg-in. ### 1. Connect a wallet to Bitcoin Testnet We recommend to use Electrum BTC wallet for connecting to Bitcoin Testnet. - Download the wallet from [Electrum Website](https://bitzuma.com/posts/a-beginners-guide-to-the-electrum-bitcoin-wallet/) - Install Electrum - Start Electrum in Testnet mode - For example on MacOS: `/Applications/Electrum.app/Contents/MacOS/Electrum --testnet` - After Electrum starts, create or import a wallet - Go to the third tab, "Receive". You will see a Bitcoin Testnet address like below. ![Create a Legacy (p2pkh) wallet](/img/legacy-private-key.png) - Note: The Bitcoin wallet needs to be legacy (not Segwit) whose public key starts with either `m` or `n`, and private key starting with `p2pkh:` ![Get a Bitcoin Testnet address in Electrum Wallet](/img/electrum-wallet.png) ### 2. Get test Bitcoin from Testnet Faucet There are a few options to get Bitcoin on Testnet. Use . ### 3. Send Bitcoin to Rootstock Federation address The Rootstock Federation address is retrieved by making a Smart Contract call on Rootstock Testnet. - To retrieve the Rootstock Federation address: 1. Search the bridge contract address [0x0000000000000000000000000000000001000006](https://explorer.testnet.rootstock.io/address/0x0000000000000000000000000000000001000006) on the Rootstock Testnet Explorer. ![Get Federation Address](/img/concepts/rbtc/01-federation-address.png) 2. Go to Contracts tab --> Read Contracts and scroll to the 8th option which is `getFederationAddress()` and click the Read button. It should look like the screenshot below: ![Get Federation Address](/img/concepts/rbtc/02-federation-address-testnet.png) Now, you can send Bitcoin to the Federation address via your Bitcoin address. > Note: You must send a minimum amount of `0.01 tBTC`. ### 4. Get tRBTC address with tBTC private key - You can get a corresponding tRBTC address from your tBTC private key by using [github.com/rsksmart/utils](https://github.com/rsksmart/utils). If you do not want to compile the utility, you can download the [latest release](https://github.com/rsksmart/utils/releases/latest). - Note: When entering Bitcoin private key do not include `_p2pkh:_` in the front. ### 5. Check tRBTC balance on Testnet - You can check the balance of the above tRBTC address on Metamask, MyCrypto or any Rootstock Testnet compatible wallets. - You have to wait a minimum of 10 confirmations + a minimum of 5 minutes for checking your RBTC balance. ### tRBTC to tBTC conversion Instructions on how to do a Testnet peg-out. :::info[Note] The release process on Bitcoin network takes 10 Rootstock block confirmations and at least 10 more minutes. ::: ### 1. Get tBTC address with tRBTC private key - You can get a corresponding tBTC address from your tRBTC private key by using [github.com/rsksmart/utils](https://github.com/rsksmart/utils). If you do not want to compile the utility, you can download the [latest release](https://github.com/rsksmart/utils/releases/latest). ### 2. Send tRBTC to Rootstock Bridge Contract - [Rootstock Bridge Contract address](https://explorer.testnet.rootstock.io/address/0x0000000000000000000000000000000001000006): `0x0000000000000000000000000000000001000006` - **Important note**: The minimum amount to send must be **at least** 0.004 tRBTC for Testnet, values below that will be rejected and reimbursed to the sender. - Gas Limit of the transaction needs to be manually set at 100,000 gas; otherwise the transaction will fail. - Gas Price can be set to 0.06 gwei. ![Customize Gas in Metamask before send transaction on Rootstock](/img/metamask-gas-limit.png) ### 3. Check balance of tBTC address on Bitcoin Testnet You can either use Electrum wallet downloaded earlier or from any Bitcoin explorer to check the balance.