# FBTC Bridge The strong liquidity of assets within the Ethereum ecosystem is attributed to the presence of numerous EVM-equivalent or compatible chains. This aspect presents a greater challenge for Bitcoin. Therefore, designing a secure and reliable bridge is essential for unlocking the potential of Bitcoin assets. In its initial version, FBTC will utilize a TSS network to ensure the bridge's security. ## Key Features ### Merchant Management * **Add Merchants** - The contract owner can add merchants and set their deposit and withdrawal addresses. Only merchants can initiate minting and burning requests. * **Edit Merchants** - The contract owner can update the deposit and withdrawal addresses of merchants to ensure uniqueness and accuracy. * **Remove Merchants** - The contract owner can remove merchants and delete their associated address mappings. ### Request Handling * **Minting Requests** - Merchants can initiate minting requests to convert BTC deposits into FBTC. Minting requests undergo verification and signature processes to ensure the legality and security of the transactions. * **Burning Requests** - Merchants can initiate burning requests to convert FBTC back into BTC. Burning requests also undergo strict verification processes to ensure asset security. * **Cross-Chain Requests** - Users can initiate cross-chain requests to transfer FBTC from one chain to another. Cross-chain requests need to be confirmed and signed on both the source and target chains. ### Fee Management The FBTC Bridge contract employs a flexible fee model to collect and pay transaction-related fees. Fees can be paid by minting new FBTC or deducting from the user's account. ### Security Mechanisms * **Multi-Signature** - All critical operations require multi-signature verification to ensure transaction legality and security. * **Decentralized Governance** - The contract is managed by multiple governance members in a decentralized manner to prevent single points of failure and malicious actions. * **Real-Time Monitoring** - The contract monitors all transaction requests and operations in real-time to ensure system stability and security. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fbtc.com/system-components/onchain-smart-contracts/fbtc-bridge.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.