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Withdrawing rBTC

As your DCA schedule executes purchases, rBTC accumulates in the handler contracts. You can withdraw your rBTC at any time.

Understanding rBTC Accumulation​

BitChill uses a pull-based withdrawal pattern. This means:

  • Purchased rBTC stays in handler contracts until you withdraw
  • You control when to take custody of your Bitcoin
  • Withdrawals are independent from your active schedules

Important: rBTC Tracking​

Your accumulated rBTC is tracked per handler, not per schedule:

Handler = Token + Lending Protocol

For example:

  • All your DOC + Tropykus schedules → combined rBTC in one handler
  • All your DOC + Sovryn schedules → combined rBTC in another handler

This means if you have 3 schedules with DOC + Tropykus, the rBTC from all of them accumulates together.

Checking Your Balance​

Before withdrawing, you can check your accumulated rBTC balance:

  1. Go to the BitChill app dashboard
  2. View your accumulated rBTC per handler
  3. Or check on-chain using the handler's getAccumulatedRbtcBalance(address) function

Withdrawal Methods​

Option 1: Withdraw from Specific Handler​

Use when you want to withdraw from a specific token + lending protocol combination:

withdrawRbtcFromTokenHandler(token, lendingProtocolIndex)

Example: Withdraw rBTC from your DOC + Tropykus handler.

Option 2: Withdraw from All Handlers​

Use to withdraw all accumulated rBTC across multiple handlers at once:

withdrawAllAccumulatedRbtc(tokens[], lendingProtocolIndexes[])

Example: Withdraw from both DOC + Tropykus and USDRIF + Tropykus in one transaction.

The function iterates through each combination and withdraws where your balance is non-zero.

Step-by-Step Withdrawal​

  1. Connect Wallet: Ensure your wallet is connected to BitChill
  2. Navigate to Withdraw: Go to your dashboard or schedules page
  3. Select Handler(s): Choose which handlers to withdraw from
  4. Review Amount: Check the rBTC amount to be withdrawn
  5. Confirm Transaction: Approve the withdrawal in your wallet
  6. Receive rBTC: rBTC is sent to your wallet address

Technical Notes​

WRBTC Unwrapping​

For Uniswap-based handlers (USDRIF), the swap produces WRBTC (wrapped rBTC). The withdrawal process automatically unwraps WRBTC to native rBTC before sending to you.

Zero Balance Handling​

  • withdrawAllAccumulatedRbtc skips handler combinations where your balance is zero.
  • withdrawRbtcFromTokenHandler can revert if there is no accumulated rBTC for that specific handler.

Schedule Independence​

Withdrawing rBTC does not affect your active schedules:

  • Your schedules continue running
  • Your stablecoin balance remains unchanged
  • Only the accumulated rBTC is withdrawn

Deleting Schedules​

Deleting a schedule does not automatically withdraw your rBTC. Always withdraw your rBTC before or after deleting schedules.

Transaction Costs​

Withdrawing rBTC requires network gas paid by the caller. Exact cost depends on Rootstock conditions and the withdrawal path (single handler vs multi-handler).

Bridging to Bitcoin​

After withdrawing rBTC, you can bridge it to Bitcoin mainnet using the Powpeg.

Next Steps​