Depth: Progress of Cross-Chain Integration between Lagrange and the Polkadot Ecosystem

#Lagrange , as a cross-chain protocol based on zero-knowledge proofs (ZKP), has recently accelerated its integration with the Polkadot ecosystem, aiming to enhance the interoperability and data verification efficiency between Polkadot parachains through its ZK co-processor. The following are key developments and analysis:

1. Technical Adaptation and Verification Architecture

Lagrange's modular proof system is deeply integrated with Polkadot's Substrate framework, focusing on optimizing the state root verification between parachains. Its dynamic BLS signature committee design (supporting EigenLayer restaking nodes) is compatible with Polkadot's NPoS consensus mechanism, providing a trustless light client verification solution for parachains.

2. Use Case Expansion and Ecological Collaboration

Currently, Lagrange has tested cross-chain asset pricing proofs with DeFi protocols in the Polkadot ecosystem (such as Acala) and is exploring alternatives to traditional oracles in the Polkadot-Ethereum bridging. Its ZK big data framework can support distributed SQL query verification for Polkadot parachains, enhancing inter-chain data collaboration efficiency.

3. Challenges and Future Plans

The verification logic of Polkadot's relay chain needs to adapt to Lagrange's non-interactive proof generation. The two parties are jointly developing a customized WASM virtual machine to reduce proof costs. It is expected to complete mainnet integration by Q4 2025, at which point the LA token will serve as a payment medium for ZK proofs within the Polkadot ecosystem.

Outlook: This integration will strengthen Polkadot's competitiveness in the field of cross-chain privacy computing, while Lagrange may capture the verification needs of Polkadot's multi-chain ecosystem, driving the value support for $LA. $LA @Lagrange Official