6-Layer Modular
Architecture
Six independent layers, each upgradeable without affecting the others. Swap the sequencer. Upgrade the oracle. Evolve governance. Nothing else breaks.
Every layer is a replaceable module
Monolithic blockchains bundle execution, consensus, data availability, and governance into a single codebase. Upgrading one component means upgrading everything, creating fragile release cycles and systemic risk.
Xhavic decomposes the stack into six discrete layers with clean interfaces between them. Each layer has a single responsibility, its own upgrade cadence, and can be swapped for a better implementation without touching the others.
The result: faster iteration, lower upgrade risk, and the freedom to adopt cutting-edge solutions (new DA layers, improved oracle designs, decentralized sequencing) as they mature.
Execution Layer
Where transactions are processed and state is updated. Full EVM bytecode compatibility means Solidity and Vyper contracts deploy without modification. No rewriting, no porting, no compromise.
- 256-bit word size, 1024 stack depth
- Gas cost: SSTORE 90% cheaper than L1
- Oracle precompile integration (0x00...F0-FF)
- All Ethereum opcodes supported, Keccak-256 hashing
Sequencer Layer
Orders transactions before execution. Controls block production, batch submission, and MEV mitigation through threshold encryption and time-weighted ordering.
- 2-second block time
- 60-second batch submission window
- Threshold encryption for MEV protection
- Alpha: single centralized (Xhavic Foundation) → Future: decentralized rotation
Settlement Layer
Anchors Xhavic state to Ethereum through the CanonicalTransactionChain contract. State root commitments ensure cryptographic verifiability of every state transition.
- State roots committed to Ethereum
- 7-day fraud-proof challenge window (interactive bisection)
- Soft finality: 2-5 seconds
- Ethereum finality: ~13 minutes
Soft Finality
Xhavic consensus
State Root Posted
CanonicalTransactionChain
Ethereum Finality
L1 confirmation
Data Availability Layer
Posts transaction data to Ethereum for fraud proof verification. Ensures anyone can reconstruct the full chain state independently, guaranteeing the trustless foundation the network relies on.
- Calldata posting to Ethereum
- Merkle commitments for data integrity
- Pruned state + snapshots (no genesis replay)
- State reconstruction: 5-10 minutes
Data Pipeline
Oracle & AI Layer
Native oracle infrastructure and AI agent execution support built into the protocol. Oracle data is accessible via precompile addresses, eliminating external contract dependencies.
- Push-based oracle with multi-source aggregation
- Precompile address range: 0x00...F0-FF
- AI agents: deterministic execution guarantees
- Gas-metered compute for programmatic operations
Oracle Feeds
Governance Layer
DAO structure controlling four governance domains with on-chain execution. No off-chain multisig backdoors. Every protocol change flows through transparent, verifiable governance.
- 4 domains: protocol upgrades, sequencer policies, oracle params, treasury
- Token holder voting mechanism
- On-chain proposal execution
- Progressive decentralization roadmap
Governance Domains
Protocol Upgrades
Sequencer Policy
Oracle Params
Treasury
Why Modularity Matters
Each layer evolves on its own schedule. No monolithic release trains. No cascading failures.
Swap any layer without downtime
Upgrade the sequencer from permissioned to multi-sequencer rotation without touching execution, oracles, or governance. Each layer has a clean interface boundary, so changes in one cannot cascade into others.
Smaller blast radius
A bug in data availability posting does not affect the execution engine or governance voting. Each layer can be rolled back independently.
Adopt new tech faster
When a superior DA solution emerges, plug it in. When ZK proofs are production-ready, integrate them into the settlement layer. The rest of the stack is unaffected.
Ship independently
Oracle engineers and governance designers can ship without blocking execution or sequencer teams. Clean interfaces enable true parallel development.
Every upgrade flows through on-chain governance
Layer upgrades are not admin-keyed. Every change, from fee parameters to sequencer rotation, is proposed, debated, and executed on-chain through the governance layer. No multisig backdoors, no opaque upgrade paths.
View Full Technical Docs
Deep-dive into each layer with implementation details, API references, specifications, and integration guides.