Cross Chain Swaps

The BRCport Cross Chain Swaps functionality is a sophisticated component designed to enable users to seamlessly exchange assets between the BRC20 network (Bitcoin-based) and other blockchain ecosystems. Through the use of atomic swaps, cross-chain communication protocols, and advanced security measures, BRCport ensures a technical foundation that aligns with the principles of decentralization and security in the dynamic world of cross-chain asset swaps.

Key Components

  1. Atomic Swap Smart Contracts : BRCport implements smart contracts to facilitate atomic swaps. These contracts are deployed on both the BRC20 network and the target blockchain (e.g., Ethereum). Atomic swaps ensure that either the entire swap occurs or none of it, preventing partial execution.

  2. Cross-Chain Communication Protocol : A cross-chain communication protocol is employed to facilitate communication and coordination between the Bitcoin network and the target blockchain and vice versa. This component ensures the synchronization of events and data between the two blockchains.

  3. Decentralized Oracles : To obtain real-time information about asset prices and market conditions on both blockchains, BRCport integrates decentralized oracles. These oracles feed accurate data into the smart contracts, reducing reliance on centralized sources.


  1. Initiating the Cross Chain Swap : Users initiate a cross-chain swap by specifying the assets they want to exchange and the desired quantity. The Atomic Swap smart contract on the BRC20 network verifies the user's request.

  2. Hash Time-Locked Contracts (HTLC) : The Atomic Swap smart contracts use Hash Time-Locked Contracts (HTLC) to enforce the atomicity of the swap. HTLC ensures that either the entire swap is completed within a specified time frame or it is cancelled.

  3. Cross-Chain Communication : The cross-chain communication protocol facilitates the transmission of relevant information, including the user's request and the HTLC details, from the Bitcoin network to the target blockchain.

  4. Consensus Verification on Both Blockchains : Nodes on both the BRC20 network and the target blockchain participate in consensus verification to confirm the validity of the swap. This involves confirming the availability of assets, preventing double-spending, and validating the HTLC.

  5. Atomic Swap Execution : Upon successful consensus verification, the Atomic Swap smart contract on the target blockchain executes the asset exchange. Equivalent assets are released to the user on the target blockchain.

  6. Confirmation and Settlement : The cross-chain communication protocol confirms the successful completion of the swap back to the BRC20 network. The BRC20 Atomic Swap smart contract finalizes the swap, and the user's assets on the BRC20 network are updated accordingly.

Security Measures

  1. Use of Hash Time-Locked Contracts (HTLC) : HTLCs are crucial for enforcing atomic swaps. They provide a mechanism for secure and trustless swaps by ensuring that either the entire transaction occurs or none of it does within a specified time frame.

  2. Decentralized Oracle Integration : Integration of decentralized oracles enhances the security of the cross-chain swaps by providing accurate and tamper-resistant data about asset prices and market conditions.

  3. Threshold Signatures for Key Management : The BRCport Cross Chain Swaps system employs threshold signatures to enhance the security of key management. This cryptographic technique distributes private key components, reducing the risk associated with a single point of failure.

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