How Marble’s Layer 2 solution secures on-chain transactions

Marble Layer2 adopts a multi-layer architecture design, completing data services, data submission, data sorting, and data validation through execution nodes. It achieves data synchronization and payment operations with BTC execution nodes through the on-chain EVM, Bitcoin light node contracts, and deposit-withdrawal contracts. External services are provided through Remote Procedure Call (RPC), multi-language SDKs, API interfaces, and on-chain data display queries via browsers.

To ensure the security of Layer2 chains and the security of cross-chain transactions from Bitcoin chain to Layer2, Marble employs a series of technical means to achieve comprehensive decentralized security verification. Compared to other projects using centralized cross-chain or centralized verification methods, the technical implementation difficulty is higher, and the security level is greater.