We architect and deploy custom smart contracts that form the foundation of your dApp. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and rigorous internal audits to mitigate risk before deployment.
LABS
Services
Privacy-Preserving Cross-Rollup Messaging
Design and implement interoperability solutions using zero-knowledge proofs to enable private asset transfers and data messages between rollups, shielding transaction details from public relays.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists for your protocol.
- End-to-End Development: From initial design and
Solidity 0.8+coding to deployment onEVMchains like Ethereum, Polygon, or Arbitrum. - Standard & Custom Logic: Implementation of
ERC-20,ERC-721, and bespoke tokenomics or governance systems. - Security & Quality: Multi-stage review process, gas optimization, and comprehensive unit testing with
HardhatorFoundry. - Post-Deployment Support: Verification, monitoring, and upgrade planning via transparent proxy patterns.
We deliver battle-tested contracts that power your product, ensuring reliability and security from day one.
key-features-cards
ARCHITECTURE & SECURITY
Core Technical Capabilities We Deliver
We build the secure, high-performance messaging infrastructure your application needs, abstracting away cross-chain complexity so you can focus on your core product.
benefits
DELIVERABLES
Business Outcomes for Your Application
Our privacy-preserving cross-rollup messaging delivers concrete infrastructure improvements that translate directly to your application's performance and security.
01
Secure, Private Data Transfer
Move sensitive transaction data and user states between L2s with zero-knowledge proofs, ensuring confidentiality without compromising on-chain verifiability. Protects user data from front-running and MEV.
ZK-SNARKs
Privacy Standard
No Data Leakage
Guarantee
02
Reduced Cross-Chain Latency
Achieve sub-2 minute finality for cross-rollup messages, enabling seamless user experiences for multi-chain DeFi operations and NFT bridging. Eliminates the multi-hour waits of traditional bridges.
< 2 min
Finality
24/7
Relay Uptime
03
Lower Transaction Costs
Optimized proof generation and batched verification significantly reduce the gas overhead of cross-rollup communication, making frequent, small-value interactions economically viable.
Up to 60%
Gas Savings
Batch Verified
Cost Model
05
Audited Security & Reliability
Our core messaging protocol and zero-knowledge circuits undergo rigorous third-party audits. Benefit from enterprise-grade SLAs and 24/7 monitoring for critical infrastructure.
99.9%
Uptime SLA
Third-Party Audits
Security Basis
06
Future-Proof Architecture
Built with modularity in mind, our system easily integrates new rollups and privacy techniques. Avoid vendor lock-in and ensure your application scales with the evolving L2 landscape.
Modular Design
Architecture
Multi-Rollup
Native Support
Infrastructure Decision Matrix
Build vs. Buy: Private Messaging vs. Public Relays
A detailed comparison of the total cost of ownership and technical responsibility between developing a custom privacy-preserving messaging layer internally 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 |
Ongoing Annual Cost (Ops & Maintenance) | $150K - $300K | $30K - $100K (SLA) |
Security Posture | High Risk (Custom, unaudited code) | Low Risk (Audited, battle-tested core) |
Team Requirements | 3-5 Senior Protocol Engineers | Your Integration Engineer + Our Team |
Cross-Rollup Protocol Support | Custom implementation per chain | Pre-built for Ethereum, Arbitrum, Optimism, Base, zkSync |
Message Latency SLA | Not guaranteed | < 2 seconds finality |
Uptime & Reliability | Your responsibility (target 99%) | 99.9% SLA with monitoring |
Upgrade & Maintenance Burden | Full responsibility for forks, security patches | Handled by Chainscore, seamless upgrades |
Total Cost of Ownership (Year 1) | $400K - $900K+ | $80K - $250K |
how-we-deliver
PREDICTABLE, AUDITABLE, SECURE
Our Delivery Process: From Design to Mainnet
A transparent, phased approach to delivering production-ready, privacy-preserving cross-rollup messaging. We de-risk your integration with clear milestones, expert audits, and guaranteed SLAs.
01
Phase 1: Architecture & Threat Modeling
We define your system's privacy guarantees, threat model, and optimal cryptographic primitives (ZK-SNARKs, FHE, MPC). This includes selecting the most efficient proving system and designing secure key management.
1-2 weeks
Delivery Time
100%
Requirement Sign-off
02
Phase 2: Protocol & Smart Contract Development
Our engineers build the core messaging protocol in Rust/Go and the on-chain verifier/relayer contracts in Solidity/Vyper. All code follows OpenZeppelin patterns and is optimized for gas efficiency across L2s.
3-5 weeks
Development Sprint
> 95%
Test Coverage
03
Phase 3: Security Audit & Formal Verification
Your protocol undergoes rigorous review by our internal security team and a leading third-party auditor like Trail of Bits or Quantstamp. We provide a formal verification report for critical logic.
2-3 weeks
Audit Cycle
Critical Zero
Guarantee
04
Phase 4: Testnet Deployment & Integration
We deploy the full stack to your chosen testnets (Sepolia, Holesky, Arbitrum Sepolia) and integrate with your dApp front-end. We conduct load testing and simulate adversarial network conditions.
1-2 weeks
Integration Window
99.9%
Testnet Uptime SLA
05
Phase 5: Mainnet Launch & Monitoring
We manage the production deployment, configure real-time monitoring with PagerDuty/Grafana alerts, and establish a 24/7 incident response protocol. You receive full operational handover documentation.
< 72 hours
Go-Live Process
99.95%
Production Uptime SLA
06
Phase 6: Ongoing Support & Upgrades
We provide dedicated developer support, protocol upgrades for new rollups, and quarterly security reviews. Our team ensures your system evolves with the Ethereum ecosystem.
< 1 hour
Critical Response SLA
Quarterly
Security Reviews
Privacy-Preserving Cross-Rollup Messaging
Frequently Asked Questions
Get clear answers on how we deliver secure, private interoperability for your blockchain applications.
A standard implementation takes 3-5 weeks from kickoff to mainnet deployment. This includes 1 week for architecture design and ZK-circuit specification, 2-3 weeks for core development and integration, and 1 week for internal security review and testing. Complex integrations with custom privacy logic or multiple rollup environments may extend this timeline, which we scope and quote upfront.
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