RSK Smart Bitcoin

RSK Smart Bitcoin

RSK Smart Bitcoin can be accessed with the following coin types:

Environment	Coin Type	Faucet
RSK Production	rbtc
RSK Testnet	trbtc	https://faucet.rootstock.io

Explorer

https://explorer.rootstock.io/

Enterprise fee address

ENTERPRISEID=585c51a5df8380e0e3082e46

curl -X POST \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://app.bitgo-test.com/api/v2/trbtc/enterprise/$ENTERPRISEID/feeAddressBalance

RSK uses the same fee address structure as Ethereum.

Each enterprise has a fee address used to pay for transaction fees on all RSK wallets in that enterprise. The dashboard of the BitGo website displays the fee address, and you must fund it before creating a wallet, address, or sending a transaction. If the enterprise fee address runs out of assets, you cannot create new wallets, addresses, or send transactions until you fund the fee address. You cannot use one of your own RSK wallets to fund the fee address if the fee address is too low (because you cannot send transactions from your RSK wallet). It is best to create and fund a non-BitGo RSK account, so you can use it to fund your BitGo enterprise fee address. Any open source RSK wallet can be used to create an account.

There is a feeAddress field under the CoinSpecific key for RSK wallets. Use this address to pay the fees for creating transactions and addresses.

Generating wallets

bitgo
  .coin('trbtc')
  .wallets()
  .generateWallet({
    label: 'My Test Wallet',
    passphrase: 'secretpassphrase1a5df8380e0e30',
    enterprise: '5612c2beeecf83610b621b90964448cd',
  })
  .then(function (wallet) {
    // print the new wallet
    console.dir(wallet);
  });

LABEL="My Test Wallet"
PASSPHRASE="secretpassphrase1a5df8380e0e30"

curl -X POST \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $ACCESS_TOKEN" \
-d "{ \"label\": \"$LABEL\", \"passphrase\": \"$PASSPHRASE\" }" \
http://$BITGO_EXPRESS_HOST/api/v2/trbtc/wallet/generate

Before you can use an RSK wallet, it must be initialized on the RSK blockchain. When you create an RSK wallet, BitGo sends a transaction on the RSK network to generate the wallet.

Until the initialization transaction confirms, the wallet is not ready for use, and the API does not expose the receive address. This is to protect users from losing assets by sending to a wallet that does not exist on the network.

Creating addresses

bitgo
  .coin('trbtc')
  .wallets()
  .getWallet({ id: '585c51a5df8380e0e3082e46' })
  .then(function (wallet) {
    return wallet.createAddress();
  })
  .then(function (newAddress) {
    // print new address details
    console.dir(newAddress);
  });

WALLET=585c51a5df8380e0e3082e46

curl -X POST \
-H "Authorization: Bearer $ACCESS_TOKEN" \
https://app.bitgo-test.com/api/v2/trbtc/wallet/$WALLET/address

RSK address creation requires interactions with the RSK blockchain. To deploy a receive address contract, BitGo sends a transaction on the RSK network. Make sure to fund the fee address mentioned earlier. Like the wallet creation process, a RSK address does not become usable immediately upon creation and so the caller of this function needs to wait for the initialization transaction to be confirmed before attempting to fetch, or send to, the address.

Balances

Smart Bitcoin (RBTC) is the native asset of the RSK blockchain and maintains a 1:1 peg to BTC. RSK is a smart-contract compatible Bitcoin sidechain and uses the Ethereum Virtual Machine (EVM).

RBTC is used to pay for RSK gas fees like Ether is used to pay for Ethereum gas fees. The base unit of Smart Bitcoin is wei:

• 1 wei is (10-18) or 0.000000000000000001 RSK.
• 1 RSK is (1018) or 1000000000000000000 wei (1 quintillion).

BitGo supports balances in string format: balanceString, confirmedBalanceString, and spendableBalanceString.

Transactions

The BitGo RSK multisig contract currently only supports one sender and one recipient. That means that the sendMany call only accepts one recipient.