According to Foresight News, Polyhedra Network has introduced a Bitcoin cross-chain messaging protocol based on zkBridge to enhance the interoperability of the Bitcoin network. zkBridge enables lightweight client smart contracts deployed on any blockchain network to directly verify Bitcoin's PoW consensus and Merkle proofs for each transaction. zkBridge allows the transfer of all current and historical data on the Bitcoin network to any Layer 1 and Layer 2 blockchain networks, such as Ethereum, BNB Chain, and Arbitrum, as well as any on-chain applications, and is compatible with the latest protocols on the Bitcoin network, such as Ordinals, BRC-20, and Atomicals.
Additionally, by introducing a decentralized crypto-economic model based on staking/re-staking mechanisms and multi-party secure computation (MPC) technology, zkBridge enables other blockchain networks to securely write verified data into the Bitcoin network. The system ensures security through staking and forfeiture mechanisms, addressing the cross-chain message verification challenges posed by Bitcoin's lack of native smart contract support.