We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on industry-standard security practices, including OpenZeppelin libraries, comprehensive unit testing, and formal verification where required.
LABS
Services
Cross-Chain L2 State Synchronization
Engineering secure, real-time synchronization mechanisms for application state and data across independent Layer 2 networks, enabling complex, interoperable dApps that function cohesively across rollups.
Chainscore © 2026
overview
CORE SERVICE
Custom Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic.
From tokenization to complex DeFi logic, we translate your requirements into efficient, gas-optimized code.
- Token Standards: Custom
ERC-20,ERC-721,ERC-1155, andERC-4626vaults with tailored minting, burning, and governance logic. - DeFi & dApps: Automated Market Makers (AMMs), staking pools, lending protocols, and NFT marketplaces.
- Security First: Every contract undergoes internal audits and is prepared for third-party review by firms like CertiK or Quantstamp.
- Full Lifecycle: We handle deployment, verification on block explorers like Etherscan, and provide clear documentation for your team.
key-features-cards
ENTERPRISE-GRADE RELIABILITY
Engineered Synchronization Capabilities
Our cross-chain L2 state synchronization is built on battle-tested infrastructure, delivering deterministic finality and data integrity for mission-critical applications.
01
Deterministic Finality & Data Integrity
Guaranteed atomic state updates across chains with cryptographic proofs. Eliminates race conditions and ensures your application logic executes on a single source of truth.
100%
Data Integrity
Zero Reorgs
Guarantee
02
Sub-Second State Propagation
Optimized relayers and zero-knowledge proofs enable state updates in <500ms. Achieve near-instant user experiences for DeFi swaps, gaming, and social apps.
< 500ms
Propagation
24/7
Monitoring
04
Multi-Chain Protocol Support
Native synchronization for Arbitrum, Optimism, Base, and zkSync Era. Custom adapters available for Polygon zkEVM, Scroll, and other EVM-compatible L2s.
4+
L2s Supported
EVM
Native Compatibility
05
Gas-Optimized Relay & Proof Generation
Our proprietary relayer network reduces cross-chain messaging costs by up to 60% versus public alternatives, with fee abstraction for seamless user onboarding.
60%
Cost Reduction
Fee Abstraction
User Experience
06
SLA-Backed Infrastructure & Monitoring
Enterprise-grade 99.9% uptime SLA with real-time dashboards, alerting, and incident response. Full historical data replay for debugging and compliance.
99.9%
Uptime SLA
Real-Time
Alerts
benefits
TANGIBLE RESULTS
Business Outcomes of a Unified L2 State Layer
Our Cross-Chain L2 State Synchronization service delivers measurable infrastructure advantages, directly impacting your product's performance, cost, and time-to-market.
01
Accelerated Feature Deployment
Deploy cross-chain features in under 2 weeks by eliminating the need to build and maintain custom bridging infrastructure. Our unified state layer provides a ready-to-integrate API for seamless asset and data movement.
< 2 weeks
Integration Time
0 lines
Custom Bridge Code
02
Guaranteed Data Consistency
Eliminate cross-chain state conflicts with a cryptographically verifiable synchronization layer. Achieve atomic composability across networks, ensuring your DeFi protocols and NFT marketplaces operate with a single source of truth.
100%
Verifiable Proofs
0
Settlement Risk
03
Substantial Cost Reduction
Reduce infrastructure costs by over 60% compared to managing multiple RPC providers and custom indexers. Our unified layer consolidates data access and state proofs into a single, optimized service.
> 60%
Cost Savings
1 API
Unified Endpoint
04
Enhanced Developer Velocity
Empower your engineering team with production-ready SDKs for Solidity, Rust, and TypeScript. Our comprehensive documentation and 24/7 technical support reduce development friction and accelerate iteration cycles.
3+
SDK Languages
< 1 hr
First Sync
05
Enterprise-Grade Reliability
Build on infrastructure with a 99.9% uptime SLA, backed by multi-region failover and 24/7 monitoring. Our service is designed for high-throughput applications requiring consistent, low-latency state access.
99.9%
Uptime SLA
< 100ms
P95 Latency
06
Future-Proof Architecture
Seamlessly integrate new L2s and rollups as they launch. Our protocol-agnostic design ensures your application remains compatible with emerging networks like zkSync, StarkNet, and Arbitrum Orbit chains without re-engineering.
10+
Supported Networks
1 day
New Chain Support
The Infrastructure Decision
Build vs. Buy: L2 State Synchronization
A detailed comparison of the time, cost, and risk involved in developing and maintaining a custom cross-chain state sync solution versus using Chainscore's managed service.
| Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Security & Audit Burden | High (Your team manages audits) | Low (Pre-audited, battle-tested modules) |
Ongoing Maintenance & DevOps | 2-3 FTE engineers | Fully managed by Chainscore |
Cross-Chain Protocol Support | Limited to initial build scope | Ethereum, Arbitrum, Optimism, Base, Polygon, zkSync |
Uptime & Reliability SLA | Your responsibility (typically < 99%) | 99.9% Guaranteed |
Protocol Upgrade Management | Manual, complex, and risky | Handled seamlessly by our team |
Total Cost of Ownership (Year 1) | $500K - $1M+ | $80K - $200K |
how-we-deliver
PROVEN PROCESS
Our Delivery Methodology for L2 Sync
We deliver production-ready cross-chain state synchronization through a structured, security-first development lifecycle designed for rapid deployment and enterprise reliability.
01
Architecture & Protocol Design
We design a custom synchronization architecture based on your L2 stack (Arbitrum, Optimism, zkSync) and target chains, selecting optimal protocols (LayerZero, Wormhole, Axelar) for security and cost-efficiency.
2-4 weeks
Design Phase
5+ Protocols
Expertise
02
Smart Contract Development & Auditing
Our engineers write secure, gas-optimized Solidity/Vyper contracts for relayers, verifiers, and governance. All code undergoes internal review and a mandatory third-party audit before deployment.
100% Audited
Code Coverage
OpenZeppelin
Standards
03
Relayer Infrastructure Deployment
We provision and configure high-availability, fault-tolerant relay nodes with automated failover, ensuring continuous state synchronization across your defined network.
99.9% SLA
Infra Uptime
< 5 sec
Failover
04
Monitoring & Alerting Setup
We implement comprehensive monitoring for latency, message success rates, and gas costs, with real-time alerts sent to your team via Slack/Discord/PagerDuty for any sync anomalies.
24/7
Monitoring
< 1 min
Alert Time
05
Staging & Mainnet Launch
We execute a phased rollout: rigorous testing on testnets (Sepolia, Holesky), a controlled staging environment simulation, and final, monitored mainnet deployment.
3+ Testnets
Pre-Launch
Phased Rollout
Go-Live
06
Documentation & Knowledge Transfer
We deliver complete technical documentation, operational runbooks, and conduct training sessions with your engineering team to ensure full ownership post-handoff.
Full Docs
Delivered
2 Sessions
Handover
security-architecture
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts that power your core business logic—from token systems to complex DeFi protocols. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive audit trails.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - DeFi & DAOs: Automated market makers, staking pools, governance modules.
- Enterprise Logic: Multi-signature wallets, asset tokenization, KYC/AML integration.
- Full Audit Support: Formal verification and third-party audit preparation.
Deploy a battle-tested, gas-optimized contract suite in as little as 2–4 weeks, backed by a 99.9% uptime SLA for critical functions.
Implementation & Operations
Cross-Chain L2 Sync: Technical FAQs
Common technical and operational questions from CTOs and engineering leads evaluating cross-chain state synchronization solutions.
Standard deployment for a production-ready cross-chain sync setup takes 2-4 weeks. This includes architecture design, smart contract development, oracle/relayer integration, and on-chain deployment with comprehensive testing. Complex multi-chain ecosystems with custom consensus or high-frequency updates can extend to 6-8 weeks. We provide a detailed project plan within 48 hours of initial scoping.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall