We architect and deploy audit-ready smart contracts on EVM and Solana. Our development process ensures zero critical vulnerabilities and compliance with standards like ERC-20, ERC-721, and SPL.
LABS
Services
StarkNet Cairo ZK-Verified Outcome Settlement
We deliver privacy-preserving, verifiable dispute resolution systems for prediction markets using Cairo and STARK proofs. Achieve confidential arbitration with on-chain cryptographic guarantees and reduce settlement disputes by 99%.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- End-to-End Development: From tokenomics design to mainnet deployment.
- Security-First: Built with
OpenZeppelinlibraries and formal verification patterns. - Gas Optimization: Contracts engineered for up to 40% lower transaction costs.
- Full Audit Support: Preparation and remediation for firms like CertiK and Quantstamp.
Deliver a secure, scalable foundation for your DeFi, NFT, or enterprise application in as little as 3 weeks.
key-features-cards
ZK-VERIFIED SETTLEMENT ENGINEERING
Core Technical Capabilities
We architect and deploy production-grade StarkNet settlement layers, delivering provable outcomes with enterprise-grade security and performance.
01
Cairo 1.0 Smart Contract Development
We build high-assurance smart contracts in Cairo 1.0, leveraging the native ZK-provable language for StarkNet. Our code follows OpenZeppelin Cairo patterns and is optimized for minimal prover costs and maximum security.
100%
Cairo 1.0 Native
OpenZeppelin
Security Patterns
02
ZK-Circuit Design & Optimization
We design and optimize custom ZK-circuits for your specific settlement logic, ensuring computational integrity with minimal proof generation overhead. This reduces your operational costs and finality time.
> 60%
Avg. Cost Reduction
Sub-Second
Proof Generation
03
StarkNet Sequencer & Prover Integration
We handle full-stack integration with StarkNet's sequencer network and SHARP prover system. We manage state synchronization, transaction batching, and proof submission for reliable, high-throughput settlement.
99.9%
Sequencer Uptime SLA
< 5 min
L1 Finality
05
L1 <> L2 Bridging & Messaging
We implement secure, gas-efficient bridging protocols using StarkNet's L1<>L2 messaging system. Our solutions include custom token bridges and cross-chain state synchronization for seamless asset movement.
< 30 min
Withdrawal Time
ERC-20/721
Bridge Support
06
Performance Monitoring & Analytics
We deploy custom dashboards tracking key settlement metrics: proof costs, sequencer latency, L1 gas fees, and contract health. Get real-time alerts and historical data for operational excellence.
24/7
Monitoring
Custom Dashboards
Delivered
benefits
DELIVERABLES
Business Outcomes for Your Market
We architect StarkNet Cairo applications that deliver measurable business advantages, from capital efficiency to regulatory compliance. Here’s what you can expect.
01
Capital Efficiency & Reduced Costs
Settle high-volume transactions off-chain with ZK-proofs, slashing L1 gas fees by 90-99%. Reallocate saved capital to growth and user acquisition.
90-99%
Gas Cost Reduction
Zero
L1 Settlement Per Tx
02
Institutional-Grade Security & Compliance
ZK-verified settlement provides cryptographic proof of correctness for every outcome. Build auditable, tamper-proof records for regulators and stakeholders.
100%
Proof of Validity
Formal Verification
Cairo Native
03
Sub-Second Finality for Users
Move beyond 12-second block times. Deliver instant, provably final outcomes for betting, trading, or gaming, matching Web2 user expectations.
< 1 sec
User-Facing Finality
Unlimited
Concurrent TPS
04
Scalable Infrastructure Foundation
Deploy a Cairo app that scales horizontally with your user base. Our architecture handles order-of-magnitude growth without re-engineering.
4-6 weeks
Production Deployment
99.9%
Uptime SLA
StarkNet ZK-Verified Settlement
Phased Development & Delivery
A structured roadmap for delivering your custom ZK-verified outcome settlement system, from initial architecture to full production deployment and ongoing support.
| Phase & Deliverables | Starter (Proof-of-Concept) | Professional (Production-Ready) | Enterprise (Fully Managed) |
|---|---|---|---|
Phase 1: Architecture & Design | Core logic specification | Full system architecture + Cairo contract design | Architecture + integration design for your existing stack |
Phase 2: Core Development | Basic Cairo smart contracts (audited) | Full Cairo contracts, verifier, & off-chain prover | Contracts, prover, custom UI components, and API layer |
Phase 3: Testing & Security | Internal unit testing | Comprehensive test suite + 1 external audit | Multi-firm audit, formal verification, and penetration testing |
Phase 4: Deployment & Integration | Testnet deployment only | Mainnet deployment + basic frontend integration | Multi-chain deployment, CI/CD pipeline, and full-stack integration |
Phase 5: Support & Maintenance | 30-day bug fix window | 6-month support & monitoring | 12-month SLA with 24/7 monitoring and dedicated engineer |
Typical Timeline | 4-6 weeks | 8-12 weeks | 12-16 weeks |
Response Time SLA | N/A | Next business day | < 4 hours for critical issues |
Starting Project Cost | $25K - $50K | $80K - $150K | Custom (Contact for Quote) |
how-we-deliver
PROVEN FRAMEWORK
Our Delivery Methodology
A systematic, security-first approach to delivering production-ready ZK-verified settlement systems on StarkNet. We focus on predictable timelines, audited code, and measurable outcomes.
01
Architecture & Design Sprint
We begin with a collaborative 1-week sprint to define your settlement logic, data models, and Cairo contract architecture. This ensures alignment on technical scope and business requirements before a single line of code is written.
1 week
Fixed Duration
100%
Scope Clarity
02
Cairo 1.0 Development & Internal Audit
Our certified Cairo developers build your core settlement contracts using StarkNet's latest toolchain. Every module undergoes rigorous peer review and static analysis against our internal security checklist before external audit.
Cairo 1.0+
Toolchain
Peer-Reviewed
Code Quality
03
Formal Verification & External Audit
We submit the codebase for formal verification using tools like Giza and engage a top-tier third-party auditor (e.g., Nethermind, ABDK). We provide a full remediation report, guaranteeing the mathematical correctness and security of your settlement logic.
Formal Proofs
Verification
Tier-1 Auditor
Security
04
Staged Testnet Deployment
We deploy to a dedicated testnet environment (Goerli/SEPOLIA) for integration testing, load simulation, and user acceptance. We provide comprehensive monitoring dashboards and performance benchmarks.
Full Integration
Testing
Performance Logs
Delivered
05
Production Launch & SLA Monitoring
We manage the mainnet deployment and establish Service Level Agreements (SLAs) for uptime and finality. You receive 24/7 monitoring alerts and access to our incident response protocol.
99.5%
Uptime SLA
< 5 min
Incident Response
06
Documentation & Knowledge Transfer
We deliver complete technical documentation, operational runbooks, and conduct handover sessions with your engineering team. This ensures full ownership and the ability to iterate post-launch.
Full Docs
Delivered
Handover
Session Included
StarkNet Cairo Development
Frequently Asked Questions
Common questions about our ZK-verified outcome settlement development process, timelines, and support.
We follow a structured 4-phase process: Discovery & Scoping (1 week), Architecture & Design (1-2 weeks), Development & Internal Auditing (2-4 weeks), and Deployment & Integration (1 week). A typical end-to-end project for a custom ZK-verified settlement layer takes 6-8 weeks. We provide a detailed Gantt chart and weekly syncs to ensure on-time delivery.
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