I see that Solayer is about to launch its own SVM native cross-chain bridge. To be honest, in the context of continuous hacks on cross-chain bridges and the interconnectedness of multiple chains, discussing "cross-chain bridges" always raises some concerns. So what different ideas does Solayer have this time? Here’s my understanding:

1) Unlike traditional cross-chain bridges that rely on multi-signatures or relay nodes, Solayer adopts a proof-based mechanism native to SVM. In simple terms, it generates cryptographic proofs of asset transfers directly at the Solana virtual machine level, rather than relying on the "honesty assumption" of external validators. Specifically, it uses a no-database architecture combined with pure PDA (Program Derived Address) logic. Traditional cross-chain bridges usually need to maintain a centralized database to record cross-chain states, which becomes a primary target for hackers. In contrast, PDA is a deterministic address generation mechanism unique to Solana, where all states exist directly on-chain and are derived through program logic. To put it another way, it’s like changing the way a safe's password is recorded from paper to a mathematical formula— even if a hacker obtains some information, they cannot cause harm without the complete on-chain state.

2) Solayer introduces a Guardians mechanism, employing stateless operations—Guardians do not make any assumptions about historical states. More importantly, it sets an instance bridge cap limit, which can control the extent of losses even if security issues arise. In this regard, the Fuzzland team has conducted formal verification of the entire system, essentially using mathematical methods to prove the correctness of the code logic, rather than relying solely on testing. Coupled with on-chain replay protection, 24/7 anomaly monitoring, and real-time alerts, it has theoretically built multiple layers of protection.

3) Solayer supports Cross-Chain Calls and composable Hooks functionality. Through Hooks, developers can automatically trigger on-chain operations such as arbitrage and liquidation after transactions. If this composability is combined with cross-chain functionality, it will indeed open up many new possibilities. That said, there are challenges; the design that does not require a whitelist does lower the barrier to entry, theoretically allowing any token to be bridged, which undoubtedly brings security challenges and regulatory risks. Additionally, established cross-chain bridges like Wormhole have been deeply rooted in the Solana ecosystem for a long time, making it difficult for Solayer to capture market share. While there is technological innovation, the cross-chain bridge space ultimately needs to validate security with real money.

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