We architect and deploy audit-ready smart contracts for DeFi, NFTs, and enterprise applications. Our team specializes in Solidity 0.8+ and Rust (Solana) development, implementing OpenZeppelin security patterns and gas-optimized code to ensure reliability and cost-efficiency.
LABS
Services
Multi-Chain State Synchronization Tester
A specialized testing platform to validate and debug the complex state synchronization logic of cross-chain applications, bridges, and Layer 2 solutions, ensuring data consistency and atomicity across heterogeneous networks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your dApp.
From concept to mainnet, we deliver contracts you can trust, backed by formal verification and multi-audit processes.
- Custom Logic: Tailored
ERC-20,ERC-721,ERC-1155, and bespoke protocols. - Security First: Comprehensive testing suite, automated analysis, and third-party audit coordination.
- Full Lifecycle: Development, deployment, verification, and upgrade management via Transparent Proxies or Diamonds (EIP-2535).
- Guaranteed Outcomes: 2-4 week MVP delivery and 99.9% uptime SLA for deployed contracts.
key-features-cards
VALIDATE CROSS-CHAIN LOGIC
Core Testing Capabilities
Our multi-chain state synchronization testing suite provides the rigorous validation your cross-chain application requires. We deliver actionable insights, not just pass/fail results, to ensure your protocol's logic is robust across any network combination.
01
State Synchronization Testing
Automated validation of data consistency across chains after a cross-chain transaction. We simulate and verify that state changes on the source chain are correctly reflected on the destination chain, preventing critical data desynchronization.
100%
Coverage Target
< 5 min
Test Cycle
02
Bridge & Messaging Protocol Simulation
Test against real-world bridge behaviors (Wormhole, LayerZero, Axelar) and message delivery failures. We simulate delayed, reordered, or maliciously altered messages to ensure your application's logic handles edge cases gracefully.
10+
Protocols Supported
50+
Failure Modes
03
Gas & Re-org Resilience Testing
Validate that your synchronization logic remains correct under network stress. We test scenarios including gas spikes, chain reorganizations, and block finality delays specific to each connected chain (Ethereum, Arbitrum, Polygon, etc.).
0
Assumed Finality
All EVMs
Chain Coverage
04
Custom Oracle & Price Feed Integration
Stress-test your application's dependency on external data (Chainlink, Pyth) during cross-chain operations. We simulate price feed latency, staleness, and manipulation to ensure your state logic does not create arbitrage or liquidation vulnerabilities.
Sub-second
Latency Simulation
10%+
Deviation Tests
05
Fork & Network Upgrade Preparedness
Proactively test your synchronization contracts against scheduled hard forks and EIP upgrades. We provide a sandbox environment to validate that your application's cross-chain logic remains compliant and secure post-upgrade.
Pre-Production
Testing Phase
All Testnets
Environment
benefits
OUR APPROACH
Deliver Secure, Reliable Cross-Chain Applications
We build multi-chain infrastructure with enterprise-grade security and reliability, enabling your team to launch and scale with confidence.
01
Protocol-Agnostic Testing Framework
Our custom-built test harness validates state synchronization across EVM, Cosmos, and Solana protocols. We deliver automated test suites that catch cross-chain consensus failures before mainnet deployment.
12+
Protocols Supported
100%
Test Coverage
02
Formal Verification & Security Audits
Every bridge and relayer contract undergoes formal verification using tools like Certora and manual review by our in-house security team. We provide a certified audit report for your due diligence.
0
Critical Bugs Shipped
48h
Vulnerability Response SLA
03
Deterministic State Reconciliation
We implement fault-tolerant algorithms to guarantee eventual consistency of cross-chain state. Our systems provide cryptographic proof of synchronization integrity, eliminating double-spend risks.
99.99%
Consensus Accuracy
< 2s
State Finality
04
Production Monitoring & Alerting
Get real-time dashboards for cross-chain message queues, validator health, and gas economics. We set up automated alerts for latency spikes or failed transactions across all connected chains.
24/7
Monitoring
< 5 min
Mean Time to Detect
05
Gas Optimization & Cost Management
We analyze and optimize transaction patterns across chains to reduce bridging costs by up to 40%. Our fee abstraction layers handle complex multi-chain gas economics automatically.
40%
Avg. Cost Reduction
5 Chains
Unified Gas Management
06
Compliance-Ready Architecture
Build with regulatory considerations in mind. Our synchronization modules support transaction tracing, origin-chain proof generation, and integration with compliance platforms like Chainalysis.
FATF Travel Rule
Compliance Ready
Immutable
Audit Trail
Infrastructure Decision Matrix
Build vs. Buy: Multi-Chain Testing Infrastructure
Compare the total cost, risk, and time investment of developing a custom multi-chain state synchronization testing suite versus using Chainscore's managed service.
| Key Factor | Build In-House | Chainscore Managed Service |
|---|---|---|
Development Timeline | 6-12+ months | 2-4 weeks |
Initial Engineering Cost | $250K - $500K+ | $15K - $50K |
Supported Chains (Initial) | 1-2 (Ethereum, EVM) | 10+ (EVM, Solana, Cosmos, Move) |
Automated Test Generation | ||
Cross-Chain State Oracles | Custom integration required | Built-in (Chainlink, Pyth, Wormhole) |
Smart Contract Audit Coverage | Separate $50K+ audit | Included in service |
Ongoing Maintenance (Annual) | 1-2 FTEs ($200K+) | Optional SLA from $30K/year |
Uptime & Reliability SLA | Your responsibility | 99.9% Guaranteed |
Time to First Test | Months of setup | < 48 hours |
how-we-deliver
PROVEN PROCESS
Our Testing & Delivery Methodology
A structured, security-first approach to ensure your cross-chain logic is robust, reliable, and ready for production. We deliver tested, deployable solutions, not just theoretical designs.
01
Comprehensive Test Suite Design
We build automated test suites covering unit, integration, and adversarial scenarios. This includes edge cases like chain reorgs, validator failures, and message delays to ensure resilience.
> 95%
Code Coverage
100%
Edge Case Coverage
02
Multi-Chain Simulation Environment
Deploy and test your synchronization logic in a controlled, local environment simulating Ethereum, Polygon, Arbitrum, and other L2s. Validate state changes and message passing without mainnet costs.
5+
Chains Simulated
< 1 sec
Test Cycle
04
Staged Deployment & Verification
We follow a phased rollout: Testnet → Staging Environment → Mainnet, with verification and monitoring at each stage. Includes final state consistency checks before production cutover.
3-Stage
Deployment
48 hrs
Verification SLA
05
Documentation & Handover
Receive complete technical documentation, deployment runbooks, and monitoring guides. We ensure your team can operate and maintain the synchronization system independently.
100%
Docs Coverage
2 Sessions
Training Included
06
Post-Launch Monitoring Support
We provide integration with your observability stack (Datadog, Grafana) and define critical alerts for cross-chain transaction failures, latency spikes, and state drift.
< 5 min
Alert Time
30 Days
Included Support
Multi-Chain State Synchronization Tester
Typical Engagement Timeline & Deliverables
A clear breakdown of project phases, key outputs, and timelines for implementing a robust cross-chain state validation system.
| Phase & Deliverable | Starter (2-4 Weeks) | Professional (4-8 Weeks) | Enterprise (8-12+ Weeks) |
|---|---|---|---|
Initial Architecture & Chain Selection | |||
Custom Test Suite Development | Basic Validator | Advanced + Fuzzing | Custom Oracles + Fuzzing |
Supported Blockchains | 2 Chains | Up to 5 Chains | Unlimited Custom Chains |
Automated Monitoring Dashboard | Read-Only Alerts | Interactive + API | Custom Integrations (Slack, PagerDuty) |
Security Audit & Report | Internal Review | Third-Party Audit (1 Firm) | Multi-Firm Audit + Bug Bounty Setup |
Production Deployment Support | Documentation | Hands-on Support | Dedicated SRE & Runbooks |
Ongoing Maintenance SLA | Business Hours | 24/7 with 1h Response | |
Typical Engagement Cost | $15K - $30K | $50K - $100K | Custom Quote |
Technical Deep Dive
Multi-Chain State Sync Testing FAQs
Get clear answers on our methodology, timelines, and security for ensuring flawless cross-chain application behavior.
Our process follows a structured 4-phase approach: 1. Discovery & Scoping (1 week): We analyze your smart contracts, target chains, and sync logic to define test coverage. 2. Framework Setup (1-2 weeks): We configure our proprietary testing harness for your specific chains (e.g., Ethereum, Arbitrum, Polygon) and sync events. 3. Execution & Analysis (2-3 weeks): We run comprehensive test suites, including edge cases and failure modes, and provide detailed vulnerability reports. 4. Remediation & Final Validation (1-2 weeks): We support your team on fixes and re-run tests for certification. Most engagements conclude within 6-8 weeks.
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