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FAQs

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Last updated 10 months ago

Q: Why do I have different addresses in my wallet, and what are their differences?

A: Bitcoin addresses are 26-62 alphanumeric character identifiers, available in various formats:

  1. Legacy address (P2PKH): Begins with "1", case-sensitive, original and most common format, but less efficient and costlier due to larger transaction sizes.

  2. Script address (P2SH): Begins with "3", case-sensitive, supports additional rules and functionalities, commonly used for multi-signature addresses.

  3. Segwit address (P2WPKH): Begins with "bc1q", case-insensitive, uses error-correcting codes, improves scalability and reduces transaction fees with efficient script language (Segregated Witness).

  4. Taproot address (P2TR): Begins with "bc1p", case-insensitive, enhances privacy, scalability, and scripting capabilities, allowing for signature aggregation and making complex transactions more efficient and cost-effective.

Q: Can anyone mint/burn FBTC?

A: Only merchants who have completed the KYC/AML process are eligible. U.S. users are not permitted to use FBTC. For onboarding, please visit .

Q: Are there any fees for using the bridge or minting and burning FBTC?

A: There are two fees you need to pay:

  • Bridge Fee: Users need to pay a fee for using the bridge.

  • On-chain Gas Fee: Users also need to cover the gas fees for transactions on the blockchain.

Q: How is the 1:1 peg maintained?

A: We ensure that the custodial wallet address always holds an equivalent amount of BTC to the FBTC0 on-chain. This guarantees that users can always exchange BTC and FBTC at a 1:1 ratio.

Q: How is the security of the protocol ensured?

A: The protocol contracts are stored in audited contracts and managed by licensed MPC wallet custodians. Our custodians and MPC wallet partners adhere to the highest security standards and are widely adopted by industry institutions. Using MPC custodial wallets ensures that BTC assets remain off-exchange, mitigating risks associated with exchange incidents.

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