We architect and deploy custom blockchain solutions from the ground up. Our team delivers bespoke Layer 1/Layer 2 networks, private/permissioned ledgers, and enterprise-grade sidechains designed for your specific throughput, privacy, and governance requirements.
LABS
Services
Decentralized Identity (DID) ZK Circuit Security Audits
Specialized security audits for zero-knowledge circuits powering selective disclosure and verifiable credentials. We ensure your proofs are sound, non-correlatable, and Sybil-resistant.
Chainscore © 2026
overview
FULL-STACK ENGINEERING
Custom Blockchain Development
Build scalable, secure, and production-ready blockchain networks tailored to your business logic.
From initial consensus design to mainnet launch, we provide a complete development lifecycle with 99.9% uptime SLAs and comprehensive node infrastructure.
- Core Protocol Development: Custom
Solidity,Rust (Solana, NEAR), orCosmos SDKchains. - Consensus & Security: Tailored Proof-of-Stake, Proof-of-Authority, or hybrid models with formal verification.
- Full Infrastructure: Validator setup, RPC endpoints, block explorers, and cross-chain bridges.
- Guaranteed Outcomes: Deliver a testnet in 4-6 weeks and a production-ready mainnet in 12-16 weeks.
key-features-cards
PROVEN FRAMEWORK
Our ZK Circuit Audit Methodology
We apply a rigorous, multi-layered audit process to ensure your zero-knowledge circuits are mathematically sound, secure, and production-ready. Our methodology is trusted by leading protocols to protect user identity and assets.
01
Mathematical Soundness Review
We verify the underlying cryptographic assumptions (e.g., R1CS, Plonk, Groth16) and ensure the circuit logic correctly enforces your DID verification rules without hidden vulnerabilities.
100%
Constraint Coverage
Zero
Soundness Errors
02
Circuit Logic & Implementation Audit
Deep code review of your Circom, Halo2, or Noir circuits. We check for common pitfalls like under-constrained signals, arithmetic overflows, and logical flaws that could compromise identity proofs.
500+
Checks Performed
OWASP
Compliance
03
Trusted Setup & Prover/Verifier Review
We audit the trusted setup ceremony parameters, prover key generation, and verifier smart contracts to prevent forgery and ensure the integrity of the entire proof system.
End-to-End
System Review
Secure
Ceremony Audit
04
Gas & Performance Optimization
We analyze and optimize the on-chain verifier contract for minimal gas consumption and provide benchmarks for proof generation time, critical for scalable DID solutions.
Up to 40%
Gas Reduction
Sub-second
Proof Targets
05
Adversarial Testing & Exploit Simulation
Our team performs manual exploit construction and fuzz testing to attempt to break the circuit's security guarantees, simulating real-world attack vectors.
Manual
Exploit Dev
Fuzzed
Input Vectors
06
Comprehensive Audit Report & Remediation
You receive a detailed report with severity-ranked findings, clear remediation guidance, and follow-up verification. Our goal is a clean bill of health for mainnet deployment.
Detailed
Findings Report
Guaranteed
Re-audit
benefits
EXPERTISE YOU CAN TRUST
Why Teams Choose Our DID ZK Audits
Our specialized audits focus on the unique security and privacy challenges of Decentralized Identity systems using Zero-Knowledge proofs. We deliver actionable reports that protect your users and your reputation.
01
Zero-Knowledge Circuit Specialization
Deep expertise in Circom, Halo2, and Noir. We audit the logic, constraints, and cryptographic soundness of your ZK circuits to prevent identity spoofing and data leakage.
150+
Circuits Audited
Circom/Halo2
Primary Frameworks
02
Protocol-Agnostic Security Review
From Verifiable Credentials (W3C VC) to on-chain attestations. We assess the full stack: smart contracts, off-chain resolvers, and the integration layers between them.
OIDC/SIOPv2
Standards Covered
Full Stack
Audit Scope
03
Actionable, Developer-First Reports
Receive clear, prioritized findings with proof-of-concept exploits and direct code fixes. We categorize risks by CVSS scores and provide remediation guidance.
< 72 hours
Critical Issue TAT
POC Included
For All High/Critical
04
Proven Track Record with Auditors
Our audit reports are accepted and trusted by leading security firms and bug bounty platforms, streamlining your compliance and go-to-market process.
CertiK, Spearbit
Partner Auditors
0 Major Post-Audit
Exploits
ZK Circuit & DID Protocol Security
Standard Audit Scope & Deliverables
A detailed breakdown of our structured security audit packages for decentralized identity systems, from foundational code review to comprehensive protocol assurance.
| Audit Component | Essential | Professional | Enterprise |
|---|---|---|---|
Zero-Knowledge Circuit Review | |||
DID Method Specification Audit | |||
Cryptographic Primitive Analysis | |||
Gas Optimization & Performance | |||
Formal Verification (Key Modules) | |||
Integration & Dependency Audit | |||
Remediation Support & Re-audit | 1 round | 2 rounds | Unlimited |
Final Report & Executive Summary | |||
Verifiable Credential Flow Testing | |||
24/7 Post-Audit Advisory SLA | |||
Typical Timeline | 2-3 weeks | 3-4 weeks | 4-6 weeks |
Starting Price | $15,000 | $45,000 | Custom Quote |
security-approach
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production at scale.
We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built for security-first production environments, not just prototypes.
From tokenomics to governance, we translate your business logic into immutable, efficient code.
- Full-Stack Development:
ERC-20,ERC-721,ERC-1155, and custom standards for DeFi, NFTs, and DAOs. - Security & Audits: Built with OpenZeppelin libraries and subjected to internal review + third-party audit readiness.
- Gas Optimization: Every contract is optimized for minimum execution cost and maximum user savings.
- Deployment & Management: Full lifecycle support from testnet (
Goerli,Sepolia) to mainnet (Ethereum,Polygon,Arbitrum).
Security & Process
DID ZK Circuit Audit FAQs
Common questions from CTOs and technical leads about our zero-knowledge circuit auditing service for decentralized identity systems.
We employ a multi-layered audit methodology: 1) Formal Verification using tools like Circomspect and custom SMT solvers to prove correctness. 2) Manual Code Review by our cryptography specialists, focusing on soundness, completeness, and zero-knowledge properties. 3) Constraint System Analysis to identify under-constrained or over-constrained logic. 4) Integration Testing against your specific DID protocol (e.g., Verifiable Credentials, selective disclosure). This process has secured over $200M+ in identity-linked assets across 30+ projects.
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