We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our development process is built for security and speed, delivering a production-ready MVP in 2-4 weeks.
LABS
Services
EVM-Based Verifiable Computation Circuits
We design and implement custom zero-knowledge circuits that execute complex off-chain computations, generating succinct proofs verifiable on any EVM chain. Trustlessly outsource heavy logic without compromising security or decentralization.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Security-First Architecture: Code written in
Solidity 0.8+orRust, followingOpenZeppelinstandards and best practices. - Comprehensive Testing: Unit, integration, and scenario testing with
HardhatorAnchor. - Gas Optimization: Every contract is optimized for minimum transaction costs and maximum efficiency.
- Full Audit Support: We prepare contracts for third-party audits with detailed documentation and a test suite.
From fungible
ERC-20tokens to complexERC-721marketplaces and custom DeFi logic, we build the secure foundation your application needs to launch with confidence.
key-features-cards
PRODUCTION-READY CIRCUITS
Core Capabilities of Our ZK Circuit Service
We deliver custom zero-knowledge circuits for EVM-based applications, enabling verifiable off-chain computation with on-chain trust. Our service is designed for CTOs who need to scale operations, reduce gas costs, and add privacy without compromising security.
01
Custom Circuit Design
We architect and implement ZK circuits (zk-SNARKs, zk-STARKs) tailored to your specific business logic, from private voting to scalable order books. Our team translates complex requirements into efficient, verifiable constraints.
Solidity 0.8+
Integration
Circom / Halo2
Framework
02
Gas-Optimized Verification
We specialize in minimizing the on-chain verification cost of your proofs. Our circuits are engineered for sub-$0.01 verification fees on L2s, directly impacting your application's operational costs and user experience.
< $0.01
Avg. Verify Cost
< 1 sec
On-Chain Finality
03
Security-First Development
Every circuit undergoes rigorous review following OpenZeppelin security patterns and is tested against common ZK vulnerabilities (e.g., under-constrained circuits). We provide audit-ready code for your peace of mind.
Audit-Ready
Deliverable
OpenZeppelin
Standards
04
End-to-End Integration
We handle the full stack: circuit logic, trusted setup coordination (Perpetual Powers of Tau), proof generation backend, and smart contract verifiers. You get a production-ready module, not just a circuit file.
Full Stack
Delivery
4-6 weeks
Typical Timeline
05
Scalable Proof Systems
We implement circuits optimized for your throughput needs, supporting batch verification and parallel proof generation to handle high-volume applications like rollups or private DeFi transactions.
1000+ TPS
Theoretical Scale
Plonk / Groth16
Proving System
06
Ongoing Support & Upgrades
Your circuit is a living component. We provide documentation, monitoring dashboards, and upgrade paths for new proving systems (e.g., transitioning to Nova) to ensure long-term viability.
99.9% SLA
Support Uptime
Detailed Docs
Included
benefits
STRATEGIC ADVANTAGES
Business Outcomes: Why Build Verifiable Computation
Move beyond trust assumptions to mathematically proven execution. EVM-based verifiable computation delivers tangible business results by embedding cryptographic guarantees directly into your application logic.
use-cases
PRODUCTION-READY USE CASES
Proven Applications for Verifiable Computation
Our EVM-based circuits are battle-tested in high-value applications, delivering provable security and operational efficiency. These are not theoretical proofs-of-concept, but production systems securing billions in assets and transactions.
01
Cross-Chain Bridge Security
Replace trusted multisigs with mathematically verifiable state proofs. Our circuits enable secure, non-custodial asset transfers between Ethereum, Arbitrum, and Optimism with cryptographic finality.
Zero
Bridge Exploits
< 5 min
Proof Generation
02
ZK-Rollup Validity Proofs
Build custom zkEVMs or zkVMs with optimized circuits for your application logic. We deliver high-throughput proof systems that reduce L1 settlement costs by over 90%.
90%+
Gas Cost Reduction
Plonk / Halo2
Proving Systems
03
Private On-Chain Voting
Implement confidential governance and voting mechanisms for DAOs. Our circuits enable vote secrecy with public verifiability, preventing coercion and ensuring integrity.
ZK-SNARKs
Privacy Tech
Sub-Second
Verification Time
04
DeFi Risk & Compliance Proofs
Generate verifiable proofs for regulatory compliance (e.g., proof of solvency, transaction legitimacy) or complex risk calculations without exposing sensitive data.
Real-Time
Proof Updates
Audit-Ready
Logs & Traces
05
Scalable Gaming & NFTs
Offload complex game logic (randomness, match resolution, asset evolution) to verifiable circuits. Enable provably fair mechanics and high-frequency interactions on L2s.
1000+ TPS
Game State Updates
Open Source
Circuit Libraries
06
Data Oracle Integrity
Create trust-minimized oracles where data feeds are verified by ZK proofs. Ensure tamper-proof price feeds and event data for DeFi protocols with cryptographic guarantees.
99.9%
Uptime SLA
< 1 sec
Data Latency
Make the right infrastructure decision
Build vs. Buy: Custom Circuits vs. Generic Solutions
A detailed comparison of the time, cost, and risk involved in developing verifiable computation circuits in-house versus partnering with Chainscore's expert team.
| Factor | Build In-House | Generic ZK Library | Chainscore Custom Circuits |
|---|---|---|---|
Time to First Production Circuit | 6-12+ months | 3-6 months | 4-8 weeks |
Initial Development Cost | $250K - $750K+ | $50K - $150K | $80K - $200K |
Requires In-House ZK Expertise | |||
Circuit Optimization for EVM | Your team | Limited | |
Formal Security Audit Included | |||
Ongoing Maintenance & Upgrades | Your team | Your team | Optional SLA |
Integration with Existing dApp Stack | Custom project | Manual integration | Guaranteed in SOW |
Total Cost of Ownership (Year 1) | $300K - $800K+ | $100K - $250K | $100K - $220K |
how-we-deliver
PROVEN METHODOLOGY
Our ZK Circuit Development Process
A structured, security-first approach to building high-performance, verifiable computation circuits for EVM applications. We deliver production-ready circuits with audited security and optimal gas efficiency.
01
Architecture & Specification
We translate your business logic into a formal circuit specification using Circom or Halo2. This includes defining constraints, selecting optimal proving systems (Groth16, Plonk), and planning for gas-optimized on-chain verification.
1-2 weeks
Specification Phase
Circom / Halo2
Primary Frameworks
02
Circuit Implementation
Our engineers write and optimize the zero-knowledge circuits, focusing on constraint efficiency and security. We implement custom gates and lookup tables to minimize proof generation time and verification costs.
~50-70%
Gas Cost Reduction
OpenZeppelin
Security Patterns
04
Performance Optimization
We benchmark and optimize proof generation time, proof size, and on-chain verification gas costs. Techniques include circuit partitioning, custom precompiles, and backend prover tuning (arkworks, snarkjs).
< 2 sec
Proof Generation*
< 200k gas
Verification Target
05
Integration & Deployment
We deliver a complete integration package: Solidity verifier contracts, TypeScript/Go prover clients, and comprehensive documentation. We support deployment to Ethereum, Polygon, Arbitrum, and other EVM chains.
Full SDK
Included
Mainnet Ready
Guarantee
06
Ongoing Support & Upgrades
Post-deployment, we provide monitoring, performance tuning, and upgrade paths for new ZK proving systems (e.g., Nova, SuperNova). We ensure your circuits remain secure and cost-effective as the ecosystem evolves.
24/7
Monitoring
Prover Updates
Included
Structured Development Process
Typical Project Timeline & Deliverables
A transparent breakdown of our phased approach to delivering production-ready verifiable computation circuits, from initial design to deployment and maintenance.
| Phase & Deliverables | Starter (4-6 weeks) | Professional (6-10 weeks) | Enterprise (10-16 weeks) |
|---|---|---|---|
Circuit Design & Specification | |||
R1CS/Plonk Circuit Implementation | Basic Logic | Optimized Logic | Custom, High-Performance |
Zero-Knowledge Prover Integration | Groth16 | Plonk / Halo2 | Custom Prover Selection |
Solidity Verifier Contract | Standard Template | Gas-Optimized | Multi-Chain Deployable |
Comprehensive Test Suite | Unit Tests | Integration + Fuzzing | Full Formal Verification |
Third-Party Security Audit | Not Included | 1 Audit Partner | 2+ Audit Partners |
Deployment & On-Chain Verification | Self-Service Guide | Assisted Deployment | Full Infrastructure Setup |
Ongoing Support & Maintenance | Community Support | 6-Month SLA | 12-Month SLA + Priority Updates |
Typical Project Investment | $30K - $50K | $80K - $150K | $200K+ (Custom Quote) |
EVM-Based Verifiable Computation
Frequently Asked Questions
Get clear answers on how we build, secure, and deploy custom zk-circuits for your EVM applications.
Standard projects are delivered in 4-8 weeks, depending on complexity. A typical timeline includes: 1 week for requirements & design, 2-4 weeks for circuit development and optimization, and 1-2 weeks for integration, testing, and final audit. We provide a fixed-scope timeline after the initial discovery 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