We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built for security-first delivery and includes formal verification and third-party audits.
LABS
Services
StarkNet ZK-Proof Reputation System
We develop custom, privacy-preserving reputation layers on StarkNet using zero-knowledge proofs. Enable games to verify player skill, history, and achievements without exposing sensitive data, creating a portable identity standard.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Token Standards:
ERC-20,ERC-721,ERC-1155,SPL, and custom implementations. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, yield aggregators.
- Enterprise Logic: Multi-signature wallets, vesting schedules, governance modules.
- Security Guarantee: All code undergoes manual review and automated analysis before deployment.
We deliver battle-tested contracts that reduce audit findings by 70%+ and accelerate your mainnet launch by weeks.
Our engineers use OpenZeppelin libraries and follow ConsenSys best practices to ensure your foundation is unshakable.
key-features-cards
ENTERPRISE-GRADE FEATURES
Core Capabilities of Our ZK-Proof Reputation System
Our reputation system is engineered for production, delivering provable trust, seamless integration, and robust security for applications on StarkNet. We handle the cryptographic complexity so you can focus on your core product.
01
On-Chain & Off-Chain Data Aggregation
We securely aggregate reputation signals from multiple sources—on-chain transaction history, governance participation, and verified off-chain credentials—into a single, unified score. This provides a holistic view of user trustworthiness without compromising privacy.
10+
Data Sources
Real-time
Sync
02
Zero-Knowledge Proof Generation
Our system generates succinct ZK-proofs (using Cairo) that cryptographically verify a user's reputation score and eligibility criteria without revealing the underlying private data. Enables private, compliant verification for airdrops, credit scoring, and gated access.
< 500ms
Proof Gen Time
Cairo 1.0
Framework
03
Customizable Reputation Frameworks
Tailor the scoring algorithm to your application's needs. Define custom weights for on-chain activity (DeFi, NFTs), social graph connections, or KYC/AML attestations. We provide the SDK and tooling for easy configuration and updates.
Modular
Logic
SDK Included
Tooling
04
Real-Time Verification & Integration
Integrate reputation checks directly into your dApp's smart contracts or backend with our lightweight verifier. Perform instant, gas-efficient verification of ZK-proofs on StarkNet to gate transactions, minting, or governance actions.
< 0.01 ETH
Avg. Verify Cost
API & SDK
Integration
05
Security & Audit Compliance
Built with security-first principles. All core circuits and smart contracts undergo rigorous audits by leading firms. Our architecture ensures data integrity and system resilience, providing a foundation you can trust for financial-grade applications.
Audited
Code
Formally Verified
Circuits
06
Scalable Infrastructure & Support
Deploy with confidence on our managed infrastructure, designed for high throughput and low latency. Includes monitoring, alerting, and dedicated technical support to ensure your reputation layer scales with your user base.
99.9%
Uptime SLA
24/7
Support
benefits
DELIVERABLES
Business Outcomes for Gaming & Metaverse Platforms
Our StarkNet ZK-Proof Reputation System delivers tangible results that directly impact your platform's growth, security, and user retention. Here’s what you can expect.
01
On-Chain Player Identity & Progression
Securely port player achievements, levels, and in-game assets across platforms using verifiable ZK-proofs. Eliminate fraud and create a unified, portable gaming identity.
Zero-Knowledge
Privacy Guarantee
ERC-1155 Compatible
Asset Standard
02
Automated Anti-Cheat & Fair Play
Deploy a transparent, on-chain reputation layer to detect and penalize malicious behavior. Use immutable proof of actions to resolve disputes and build community trust.
Immutable Logs
For Disputes
Real-Time Scoring
Algorithm Updates
03
Dynamic NFT & Asset Governance
Implement reputation-gated access to exclusive content, DAO voting power, and dynamic NFT traits that evolve based on verifiable on-chain behavior.
Soulbound Tokens
Supported
Gas-Optimized
Cairo 1.0
04
Cross-Platform Loyalty & Monetization
Create interoperable reward systems and marketplace fee structures that leverage player reputation. Enable new revenue streams through provably fair leaderboards and tournaments.
Multi-Game Economies
Interoperable
< 0.01¢
Avg. Tx Cost
05
Regulatory-Compliant Onboarding
Integrate KYC/AML verification proofs without exposing user data. Build compliant play-to-earn and wagering mechanics with auditable, privacy-preserving credentials.
ZK-Proof KYC
Privacy Layer
Audit Trail
For Compliance
Scalable Implementation Path
Phased Development Tiers
A structured roadmap for deploying a production-ready ZK-Proof Reputation System on StarkNet, from MVP to enterprise-grade.
| Core Component | Proof of Concept | Production Ready | Enterprise Scale |
|---|---|---|---|
ZK-Circuit Design & Audit | |||
Cairo Smart Contract Suite | Basic Reputation Logic | Full On-Chain Registry | Custom Governance Modules |
Off-Chain Prover Integration | Local Prover (Testnet) | Managed Prover Service | High-Availability Cluster |
Data Attestation Connectors | 1-2 Sources (e.g., GitHub) | 5+ Sources (GitHub, DAOs, NFTs) | Custom API & Oracle Integration |
Frontend SDK / Widget | Basic React Component | White-Label Dashboard | Fully Custom UI/UX |
Uptime & Monitoring SLA | Best Effort | 99.5% | 99.9% with 24/7 SRE |
Support & Response Time | Community Discord | Business Hours (< 8h) | 24/7 Dedicated (< 1h) |
Implementation Timeline | 4-6 weeks | 8-12 weeks | 12+ weeks (Custom) |
Estimated Investment | $25K - $50K | $75K - $150K | Custom Quote |
how-we-deliver
END-TO-END DELIVERY
Our Development & Integration Process
A structured, transparent workflow designed for technical leaders. We deliver production-ready StarkNet reputation systems with clear milestones, from initial design to mainnet deployment and ongoing support.
01
Architecture & Design Review
We conduct a deep technical analysis of your use case to design a custom Cairo-based reputation model. This includes defining on-chain data schemas, proof verification logic, and integration points with your existing systems.
1-2 weeks
Design Phase
100%
Requirement Sign-off
02
Cairo Smart Contract Development
Our team builds and optimizes your core reputation logic in Cairo 1.0. We implement zero-knowledge proof verification, state management, and permissioned access controls using OpenZeppelin's StarkNet contracts.
4-6 weeks
Avg. Dev Time
Audited
Security First
03
Proof System Integration
We integrate your application with our managed prover infrastructure or your custom setup. This ensures efficient ZK-proof generation and submission to the StarkNet sequencer for on-chain verification.
< 5 sec
Proof Gen Target
Scalable
Prover Pool
04
Rigorous Testing & Auditing
Every component undergoes unit, integration, and stress testing. We provide a comprehensive audit report and facilitate third-party reviews with firms like Nethermind or ABDK before mainnet deployment.
100%
Test Coverage
2+ Audits
Standard Practice
05
Staged Deployment & Monitoring
We manage a phased rollout from testnet (Goerli) to mainnet, including contract deployment, indexer setup, and dashboard configuration. Real-time monitoring for proof success rates and system health is established.
99.9%
Uptime SLA
24/7
Monitoring
06
Documentation & Knowledge Transfer
We deliver complete technical documentation, API specs, and operational runbooks. Our team conducts training sessions for your engineers to ensure full ownership and the ability to extend the system.
Complete
Source Code
Full Support
Handover
security
FOUNDATION
Blockchain Infrastructure Development
Enterprise-grade node infrastructure and RPC services for high-throughput applications.
We build and manage the foundational layer your dApp runs on. Our infrastructure delivers 99.9% uptime SLAs, <100ms global latency, and multi-chain redundancy to ensure your application is always performant and reliable.
Stop worrying about node syncing, RPC errors, and infrastructure scaling. We handle it all.
- Managed Node Clusters: Full, archive, and validator nodes for
EVM,Solana, andCosmoschains. - Enhanced RPC/API: Load-balanced endpoints with WebSocket support, rate limiting, and real-time analytics.
- Security & Monitoring: 24/7 threat detection, automated failover, and detailed performance dashboards.
- Custom Configurations: Tailored setups for DeFi, gaming, or enterprise use cases with dedicated resources.
StarkNet Reputation Systems
Frequently Asked Questions
Get clear answers on our development process, security, and timelines for building a ZK-proof reputation system on StarkNet.
A production-ready ZK-proof reputation system typically takes 6 to 10 weeks from kickoff to mainnet deployment. This includes 2 weeks for architecture design, 3-4 weeks for core Cairo contract development, 2 weeks for integration and testing, and 1-2 weeks for audit review and deployment. We provide a detailed sprint plan during the discovery phase.
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