We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our contracts are built with Solc 0.8+ and OpenZeppelin libraries, following industry-standard security patterns to mitigate common vulnerabilities.
LABS
Services
Privacy-Preserving Identity Verification Audit
We conduct security and compliance audits for interoperable avatar systems, focusing on zero-knowledge proofs, data minimization, and adherence to regulations like GDPR to protect user data and mitigate legal risk.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Full Development Lifecycle: From specification and
Solidity/Vypercoding to testing, deployment, and verification. - Gas Optimization: We write for efficiency, targeting up to 40% lower transaction costs.
- Comprehensive Audits: Every contract undergoes internal review; we facilitate third-party audits with firms like CertiK or Quantstamp.
- Mainnet-Ready: We handle deployment on Ethereum, Polygon, Arbitrum, and other EVM-compatible chains.
Deliver a secure, audited, and gas-optimized smart contract suite in as little as 3 weeks.
key-features-cards
COMPREHENSIVE SECURITY REVIEW
What Our Audit Covers
Our specialized audit for privacy-preserving identity systems combines deep cryptographic expertise with a threat model focused on data integrity and user anonymity. We deliver actionable reports that secure your protocol and build user trust.
05
Privacy Leakage & Anonymity Analysis
We simulate attacks like transaction graph analysis and metadata correlation to assess the real-world anonymity set and recommend mitigations such as privacy pools.
06
Cryptographic Implementation
In-depth review of elliptic curve operations, signature schemes (BBS+, ECDSA), hash functions, and random number generation to eliminate side-channel and implementation flaws.
benefits
BEYOND STANDARD SECURITY
Why a Specialized Identity Audit is Critical
Generic smart contract audits miss the nuanced privacy and compliance risks of identity systems. Our specialized audit targets the unique attack vectors and regulatory requirements of verifiable credentials and zero-knowledge proofs.
01
Privacy Logic Verification
We verify that your ZK-SNARKs, zk-STARKs, or MPC protocols correctly enforce data minimization and selective disclosure, preventing unintended information leaks.
100%
Logic Coverage
O(1)
Leakage Proof
02
Credential Schema & Binding Security
Audit the cryptographic binding between issuer, holder, and verifier to prevent forgery and ensure credential integrity across the W3C VC data model.
Zero
Forgery Vectors
FIPS 140-2
Crypto Standards
04
On-Chain & Off-Chain Data Flow Analysis
Trace data exposure points between smart contracts (e.g., revocation registries) and off-chain holders/verifiers to eliminate correlation risks.
End-to-End
Flow Audit
< 10ms
Correlation Window
05
Sybil & Identity Oracle Risks
Stress-test attestation oracles and uniqueness proofs to prevent Sybil attacks that could drain token rewards or governance systems.
> 1M
Sybil Simulations
99.9%
Attack Detection
Choose the right level of security for your project
Structured Audit Tiers
Compare our tiered audit packages designed to meet the needs of startups, established protocols, and enterprises deploying privacy-preserving identity systems.
| Audit Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Core Smart Contract Audit | |||
Zero-Knowledge Circuit Review | |||
Privacy Leak Analysis | |||
Sybil Attack & Front-Running Analysis | |||
Automated Vulnerability Scanning | |||
Manual Code Review (Engineer Hours) | 20 hours | 80 hours | 160+ hours |
Remediation Support & Re-audit | |||
Formal Verification Report | |||
Post-Deployment Monitoring (30 days) | |||
Emergency Response Time SLA | N/A | 24 hours | 4 hours |
Typical Timeline | 2-3 weeks | 4-6 weeks | 6-8 weeks |
Starting Price | $15,000 | $45,000 | Custom Quote |
process-walkthrough
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts that power your core business logic, from tokenomics to governance. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and rigorous internal audits to mitigate risk before deployment.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and staking logic. - DeFi Protocols: Automated market makers (AMMs), lending pools, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, DAO governance modules, and compliant asset issuance.
- Full Audit Trail: Comprehensive documentation and verification on
Etherscanor equivalent explorers.
We deliver contracts with 99.9% uptime SLAs and gas-optimized code, reducing your operational costs and technical debt from day one.
Privacy-Preserving Identity Verification Audit
Frequently Asked Questions
Get clear answers on our audit methodology, timeline, and deliverables for your zero-knowledge or MPC-based identity system.
Our methodology is a multi-layered approach tailored for cryptographic identity protocols. We conduct: 1) Cryptographic Review: Formal verification of ZK circuits (Circom, Halo2) or MPC protocols for soundness and completeness. 2) Smart Contract Audit: Manual and automated review of on-chain verifiers and registry logic for EVM/Solana/Starknet. 3) Integration & Privacy Leak Analysis: We test the entire data flow to identify potential metadata leaks or deanonymization vectors. 4) Adversarial Testing: Simulated attacks on the trust assumptions and key management processes. This process is based on our experience securing over $200M in identity-linked assets.
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