We architect and deploy audit-ready smart contracts that power your core business logic. Our development process ensures gas optimization and adherence to OpenZeppelin standards from day one.
LABS
Services
StarkNet ZK-Data Verification Service
We build zero-knowledge proof systems on StarkNet for DePIN and IoT data marketplaces. Enable consumers to cryptographically verify data quality, provenance, and compliance without ever accessing the raw, sensitive information.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
Deliver a secure, battle-tested foundation for your token, DeFi protocol, or NFT platform in as little as 2-4 weeks.
- End-to-End Development: From
Solidity/Vypercoding to deployment onEVM/Solana/Starknet. - Security-First: Formal verification, unit/integration testing, and pre-audit review.
- Real-World Ready: Built-in upgradeability patterns, pausable functions, and multi-sig admin controls.
key-features-cards
END-TO-END VERIFICATION PIPELINE
Core Components We Deliver
We build and manage the complete infrastructure to prove your off-chain data on StarkNet, from data sourcing to on-chain verification. Focus on your application logic while we handle the cryptographic complexity.
01
Custom Cairo Verifier Contracts
Deploy production-ready, gas-optimized verifier smart contracts written in Cairo. We implement STARK proofs for your specific data schemas and business logic, ensuring on-chain verification is efficient and secure.
OpenZeppelin
Security Patterns
Gas-Optimized
Cairo 1.0
02
High-Performance Prover System
A scalable, managed backend service that generates STARK proofs for your data batches. We handle proof generation complexity, parallelization, and integration with leading prover networks to ensure low latency and high throughput.
< 30 sec
Proof Gen Time
99.9% SLA
System Uptime
03
Secure Data Attestation Gateway
A hardened API gateway that ingests, validates, and prepares your off-chain data (APIs, databases, events) for proof generation. Includes data signing, schema enforcement, and tamper-evident logging.
Audited
Security
REST/WebSocket
Input Protocols
04
Real-Time Proof Status Dashboard
A dedicated monitoring dashboard providing real-time visibility into your verification pipeline. Track proof generation status, on-chain verification results, system health, and data integrity metrics.
Real-Time
Alerts
Full History
Audit Trail
06
Ongoing Protocol Maintenance
Continuous support including Cairo verifier upgrades for new StarkNet releases, performance optimizations, security monitoring, and 24/7 incident response to ensure your verification system remains operational and secure.
24/7
Support
SLA-Backed
Response Time
benefits
DELIVERABLES
Business Outcomes for Your Data Marketplace
Our StarkNet ZK-Data Verification service delivers concrete, measurable results that directly impact your marketplace's security, trust, and operational efficiency.
01
Provably Authentic Data Feeds
Integrate off-chain data (APIs, IoT, enterprise systems) with cryptographic proofs of authenticity directly on StarkNet. Eliminate data manipulation risks and build immutable audit trails for all marketplace transactions.
100%
Proof Integrity
Zero Trust
Verification Model
02
Reduced Settlement & Dispute Costs
Automate verification with zero-knowledge proofs, removing manual reconciliation and third-party arbitration. Slash operational overhead associated with data disputes and claim settlements by over 80%.
>80%
Cost Reduction
Minutes
Dispute Resolution
03
Enhanced Marketplace Liquidity
Attract institutional and high-value traders by providing verifiable, tamper-proof data for high-stakes assets (RWA, carbon credits, IP). Build the trust required for larger order volumes and complex financial instruments.
Institutional
Grade Trust
RWA Compatible
Asset Support
04
Faster Time-to-Market for New Assets
Deploy new data-backed asset classes (like sensor data streams or financial indices) in weeks, not months. Our modular verification oracles and StarkNet integration handle the complex cryptography.
< 4 weeks
Integration Time
Modular
Oracle Design
05
Regulatory & Audit Readiness
Generate immutable, cryptographically-verifiable records of all data provenance and transformations. Simplify compliance audits (MiCA, ESG reporting) and provide transparent proof of data handling to regulators.
Immutable
Audit Trail
Automated
Compliance Proofs
06
Scalable, Low-Cost Data Operations
Leverage StarkNet's L2 efficiency to verify massive datasets at a fraction of Ethereum mainnet cost. Scale your data marketplace without exponential gas fee increases.
~100x
Cost vs L1
Sub-cent
Verification Cost
Choose Your Implementation Path
StarkNet ZK-Verification Implementation Tiers
Compare our structured service tiers designed to match your project's scale, security requirements, and operational needs for integrating Cairo-based ZK-verification on StarkNet.
| Implementation Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Cairo 1.0 Smart Contract Audit | |||
Custom ZK-Circuit Design & Optimization | |||
Multi-Chain Prover Setup (Ethereum, L2s) | |||
Full Deployment & Integration Support | |||
Post-Deployment Security Monitoring | Basic Alerts | Advanced Dashboard | 24/7 SOC + SLA |
Guaranteed Response Time SLA | N/A | Next Business Day | < 4 Hours |
Dedicated Technical Account Manager | |||
Recurring Code Review & Update Cycles | Quarterly | Monthly | |
Estimated Implementation Timeline | 2-4 Weeks | 4-8 Weeks | 8-12+ Weeks |
Typical Project Investment | $15K - $50K | $50K - $200K | Custom Quote |
how-we-deliver
PROVEN PROCESS
Our Implementation Methodology
A structured, four-phase approach to deliver production-ready ZK-Data Verification with predictable timelines and zero security compromises.
01
Architecture & Design Review
We analyze your data schema and business logic to design an optimal Cairo circuit. This includes defining the public inputs, private witness data, and the verification key strategy for your specific use case.
1-2 weeks
Design Phase
100%
Requirement Lock
02
Circuit Development & Optimization
Our Cairo engineers implement the verification logic, focusing on gas efficiency and proof generation speed. We employ proven patterns for Merkle proofs, signature verification, and state transitions.
2-4 weeks
Build Time
40-60%
Avg. Gas Savings
03
Rigorous Security Auditing
Every circuit undergoes internal review followed by a formal audit. We test for logical flaws, constraint system correctness, and potential attack vectors before any deployment.
2+ Audits
Per Project
0 Critical
Guarantee Post-Audit
04
Deployment & Integration
We deploy the verifier contract to StarkNet Mainnet/Testnet and provide a complete integration package: SDK, API endpoints, and documentation for your application to submit proofs.
< 1 week
Integration
99.9%
Uptime SLA
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
We architect and deploy custom smart contracts on EVM and Solana chains, ensuring your business logic is encoded with zero vulnerabilities. Our process includes formal verification and third-party audits before mainnet deployment.
- Token Standards:
ERC-20,ERC-721,SPL, and custom implementations. - DeFi Protocols: DEXs, lending/borrowing platforms, yield aggregators.
- Enterprise Logic: Multi-signature wallets, vesting schedules, governance systems.
- Security First: Built with
OpenZeppelinlibraries and tested against known attack vectors.
Deliver a fully audited, gas-optimized contract suite in 4-6 weeks, from spec to mainnet.
StarkNet ZK-Data Verification
Frequently Asked Questions
Get clear answers on how our zero-knowledge data verification service integrates with your stack, from technical specs to commercial terms.
A standard integration takes 2-3 weeks from kickoff to production deployment. This includes environment setup, custom circuit configuration, data source connection, and a full security review. Complex multi-source verification or custom privacy logic can extend this to 4-5 weeks. We provide a detailed project plan within 48 hours of our initial technical scoping call.
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