We architect and deploy custom smart contracts that form the backbone of your Web3 product. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and Solidity 0.8+ best practices to mitigate risks from day one.
LABS
Services
Privacy-Preserving Cross-Chain Mixer Consulting
Strategic architecture and implementation guidance for building secure, compliant mixer systems that operate across multiple heterogeneous blockchain networks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Full Lifecycle Development: From initial concept and technical design to deployment, verification, and ongoing maintenance.
- Multi-Chain Expertise: Deployments on
EVMchains (Ethereum, Polygon, Arbitrum),Solana, and other L2 solutions. - Compliance & Standards: Implementation of
ERC-20,ERC-721,ERC-1155, and custom tokenomics with built-in regulatory hooks. - Rigorous Testing & Auditing: Unit, integration, and scenario testing, with optional preparation for third-party audits.
We deliver battle-tested code that reduces time-to-market and provides a secure foundation for your protocol's growth.
key-features-cards
TANGIBLE OUTCOMES
Our Cross-Chain Mixer Consulting Deliverables
We translate privacy theory into production-ready, secure infrastructure. Each deliverable is designed to accelerate your time-to-market and mitigate technical risk.
01
Custom Mixer Architecture Design
A complete technical blueprint for your privacy layer, including zero-knowledge proof selection (zk-SNARKs vs. zk-STARKs), multi-chain relay architecture, and deposit/withdrawal flow optimization.
2-4 weeks
Design Phase
5+ chains
Architected For
02
Smart Contract Suite Development
Production-grade, gas-optimized Solidity/Vyper smart contracts for the mixer core, verifier, and governance. Built with OpenZeppelin libraries and modular upgradeability patterns.
OpenZeppelin
Security Standard
99.9% gas
Efficiency Target
03
Zero-Knowledge Circuit Implementation
Development and optimization of the critical zk-SNARK/STARK circuits (using Circom, Halo2, or Cairo) that enable private transactions without revealing sender, receiver, or amount.
< 2 sec
Proof Generation
Audited
Formal Verification
04
Security Audit & Penetration Testing
Comprehensive review of the entire system—from smart contracts to backend relays—conducted by our in-house security team, with optional integration with leading third-party auditors like CertiK or Quantstamp.
Critical
Issues Resolved
Final Report
Deliverable
05
Relayer Network Infrastructure
Deployment and configuration of a decentralized, fault-tolerant relayer network to process withdrawals across supported chains (Ethereum, Polygon, Arbitrum, etc.), ensuring high availability and censorship resistance.
99.9%
Uptime SLA
< 30 sec
Withdrawal Time
06
Compliance & Monitoring Framework
Implementation of privacy-preserving compliance tools, including optional transaction risk scoring, regulatory reporting modules, and real-time dashboard for monitoring mixer health and liquidity.
Real-time
Dashboard
Modular
Compliance Ops
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Privacy Protocol
Our consulting delivers measurable infrastructure improvements, from enhanced security to accelerated time-to-market for your cross-chain privacy solution.
01
Architecture & Security Audit
Receive a comprehensive security review of your mixer's core logic, zero-knowledge circuits, and cross-chain bridges. We deliver a prioritized remediation report with fixes for critical vulnerabilities before mainnet launch.
100%
Critical Bugs Fixed
Certified
Trail of Bits Methodology
02
Gas-Optimized Smart Contracts
Deploy custom, audited mixer contracts on Ethereum, Arbitrum, or Polygon with sub-$1 transaction costs. We implement privacy-preserving patterns like zk-SNARKs and Merkle trees for maximum efficiency.
< $1
Avg. User Cost
Sol 0.8+
Secure Codebase
03
Cross-Chain Bridge Integration
Implement secure, non-custodial bridges between EVM and non-EVM chains (e.g., Solana, Cosmos). We ensure atomic swaps and message passing maintain privacy guarantees across networks.
5+
Chain Support
Non-Custodial
Fund Security
04
Regulatory Compliance Framework
Build with compliance-by-design using privacy-enhancing technologies (PETs) that satisfy AML/CFT principles without compromising anonymity sets. We provide documentation for legal review.
OFAC-Compliant
Design Patterns
Documented
Risk Methodology
05
Relayer Network Deployment
Launch a decentralized, incentivized relayer network to process private transactions with 99.9% uptime. We configure monitoring, slashing conditions, and reward distribution.
99.9%
Uptime SLA
< 5 sec
Tx Finality
06
Production Launch Support
Go from testnet to mainnet in under 4 weeks with our managed deployment pipeline. Includes stress testing, monitoring dashboard setup, and incident response playbooks.
< 4 weeks
Time to Mainnet
24/7
Launch Support
The Infrastructure Investment
Build With Guidance vs. Building Alone
A comparison of the time, cost, and risk associated with developing a privacy-preserving cross-chain mixer internally versus leveraging Chainscore's specialized consulting.
| Development Factor | Build In-House | With Chainscore |
|---|---|---|
Time to Production | 6-12+ months | 8-16 weeks |
Initial Development Cost | $250K - $600K+ | $80K - $200K |
Cryptographic Expertise Required | High (ZK/MPC specialists) | Provided by our team |
Security Audit & Penetration Testing | Separate $50K+ cost & 8-week delay | Included in delivery timeline |
Cross-Chain Bridge Integration | Custom, high-risk development | Pre-audited, modular connectors |
Ongoing Protocol Maintenance | Full-time dev team required | Optional SLA from $5K/month |
Compliance & Regulatory Risk | Your liability | Architected with compliance patterns |
Total Year 1 Cost (Est.) | $300K - $700K+ | $100K - $250K |
how-we-deliver
PROVEN FRAMEWORK
Our Structured Consulting Methodology
A systematic, four-phase approach designed to de-risk your privacy-preserving cross-chain mixer project, from initial architecture to secure mainnet deployment.
01
Architecture & Feasibility Review
We analyze your requirements to design a mixer architecture that balances privacy, scalability, and compliance. This includes selecting optimal zero-knowledge proof frameworks (e.g., zk-SNARKs via Circom, Halo2) and cross-chain messaging protocols (LayerZero, Axelar, Wormhole).
2-4 weeks
Design Phase
3+ Options
Architecture Reviewed
02
Security-First Development
Our team builds your core mixer logic with security as the foundation. We implement battle-tested cryptographic libraries, conduct internal audits, and follow a multi-signature deployment process to mitigate risks.
100%
Code Coverage
Internal Audit
Pre-Launch
04
Deployment & Monitoring
We manage the secure deployment to mainnet across your chosen chains (Ethereum, Arbitrum, Polygon, etc.) and establish real-time monitoring for liquidity health, privacy set size, and anomaly detection.
24/7
Post-Launch Support
Multi-Chain
Deployment
Technical & Commercial Details
Cross-Chain Mixer Consulting FAQs
Answers to common questions from CTOs and technical founders evaluating privacy infrastructure partners.
We follow a structured 4-phase engagement model designed for technical founders:
- Discovery & Architecture (1 week): Deep-dive on your privacy requirements, threat model, and target chains. We deliver a technical specification and architecture diagram.
- Smart Contract Development (2-3 weeks): Our senior Solidity/Rust engineers build, test, and optimize the core mixer logic and relayers using battle-tested cryptographic libraries.
- Security & Audit (1-2 weeks): Mandatory internal review followed by integration with a top-tier third-party auditor (e.g., Quantstamp, CertiK). We manage the entire audit process.
- Deployment & Handoff (1 week): We deploy the verified contracts, configure front-end integration, and provide comprehensive documentation and developer training.
Engagements are typically scoped as fixed-price projects for defined deliverables.
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