Rollup Architecture
Solaxy is a modular Layer 2 rollup that runs off-chain execution while anchoring security and finality to Solana Layer 1. Its architecture is designed for performance, flexibility, and compatibility with Solana-native tooling.
🧱 Core Components
1. Sequencer
The sequencer is responsible for ordering and bundling transactions. Solaxy uses a deterministic sequencer that ensures consistent execution and minimizes latency.
2. Execution Layer
Solaxy runs Solana smart contracts inside a zkVM, specifically the SP1 zero-knowledge virtual machine by Succinct. This allows existing SVM-based programs to execute inside a scalable rollup without code changes.
3. State Transition Function
This is the core logic that determines how transactions modify the system’s state. Solaxy has implemented a robust state transition function that mirrors Solana’s execution semantics, ensuring compatibility and reliability.
🔁 Off-Chain Execution & On-Chain Settlement
Solaxy processes transactions off-chain to achieve higher throughput and lower costs. Once a batch of transactions is processed, the rollup:
Generates a proof of correctness
Publishes transaction data + proof to Solana L1
Commits the new state root on-chain
This preserves security while offloading computation from Solana L1.
📦 Data Availability
Solaxy supports modular data availability layers:
Primary: Solana L1 (for production-grade security)
Optional: Celestia (for bandwidth-optimized configurations)
DA ensures that anyone can independently verify the current rollup state.
🌉 Bridging Layer
Solaxy integrates with Hyperlane to power permissionless, modular cross-chain messaging. The bridge connects:
Solana ↔ Solaxy
Ethereum ↔ Solaxy
Solana ↔ Ethereum
The bridging layer supports native asset transfers and message passing between ecosystems.
⚙️ Modular Design via Sovereign SDK
Solaxy is built using the Sovereign SDK, which enables:
Plug-and-play data availability layers
Configurable sequencing & settlement logic
zkVM integration
This makes Solaxy highly composable and adaptable for the future of rollup infrastructure on Solana.
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