Solayer introduces a bi-directional native bridge and an advanced cross-chain contract execution model powered by InfiniSVM. This enables seamless asset transfers, function calls, and atomic interactions between Solana and InfiniSVM.


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Bi-Directional Native Bridge

The native bridge inside the sequencer facilitates message and asset transfers between Solana and InfiniSVM, offering:

  • Re-org Resilience via an Insurance Fund

    • If the total value of relayed assets (measured via an oracle) is below the insurance fund size, assets become immediately available on InfiniSVM.
    • If the value exceeds the fund, assets are released post-finalization for added security.

  • Instant vs. Finalized Relays

    • Users can choose to relay messages instantly (ignoring re-org) or post-finalization via a transaction flag.
    • Upon availability, the receiver hook is automatically invoked, enabling further program execution.

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Cross-Chain Contract Execution via Account Mirroring

InfiniSVM introduces cross-chain program calls through account mirroring, where each program and account has a corresponding Program Derived Address (PDA) on Solana. This architecture enables:

  • MainnetCall Instruction for Atomic Operations

    • Programs can transfer funds, dispatch cross-chain function calls, and execute complex logic spanning both networks in a single atomic operation.
    • The MainnetCall instruction routes execution to its associated PDA on Solana, ensuring consistency.

  • Re-org Resilience & Deterministic Execution

    • MainnetCall never reverts, even if the Solana transaction fails.
    • Calls are placed at the end of a transaction, preventing re-org inconsistencies.
    • If a re-org occurs, the Solana transaction is rebroadcast until finalization.

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Use Cases & Applications

By combining the bridge and cross-chain execution model, developers can build solutions such as:

  • Single Transaction Cross-Chain Swaps

    • Execute a Solana-InfiniSVM asset swap in one atomic transaction.

  • Cross-Chain Yield Vault Rebalancing

    • Automatically rebalance assets between Solana and InfiniSVM for optimal yield strategies.

  • Seamless Cross-Chain DeFi Interactions

    • Enable liquidity pooling, lending, and staking across both networks without fragmented liquidity.

The InfiniSVM-powered cross-chain execution model enables secure, atomic, and re-org-resilient interactions between Solana and InfiniSVM. By leveraging account mirroring, deterministic execution, and a trust-minimized bridge, it enhances interoperability while maintaining performance and security.

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