imToken

Follow these 4 steps to quickly start with imToken wallet

1. Open imToken App and Navigate to Your BTC Wallet. Tap “Transfer” to start the transfer process

2. Input the zkBTC Bridge Mainnet Operator Address

✅ In the recipient address field, enter the official zkBTC Bridge operator address:

bc1qcwc08898aseahq2e5920m9395py3jjtm2xnt0s90slqra7cry2dq2xv9uq

⚠ Please remember double-check the receiving address before proceeding!

3. Set the Transfer Amount

  • Enter a BTC amount no less than 21,000 sats ( > 0.00021 BTC)

  • Transfers below this threshold will fail to process through the bridge

4. Enable Advanced Mode and Fill in OP_RETURN

  • Scroll down and tap “Advanced Mode”.

  • Choose “Hexadecimal character ” and input your Ethereum receiving address without "0x" prefix in the OP_RETURN field

  • $zkBTC will be minted on Ethereum, sent to the ETH address you provided in OP_RETURN:

Example:

If your ETH address is 0x35a95Efa2092248b7e92e329fbEDdc7F4Df7A2Ad, then input your ETH address without "0x" prefix as shown below:

⚠️ Important Tips:

  • Minimum transfer amount: 21,000 sats

  • OP_RETURN must be accurate: Incorrect format or address will cause failed cross-chain

  • Please customize the miner fee manually if the default amount is insufficient.

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