We architect and deploy custom Solidity and Rust contracts with formal verification and OpenZeppelin security patterns. Our process includes threat modeling, gas optimization, and comprehensive unit/integration testing to ensure zero critical vulnerabilities before mainnet deployment.
Smart Contract Formal Verification
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Custom Logic: DEX/AMMs, NFT marketplaces, token vesting, governance systems.
- Security First: Multi-signature deployment, upgradeable proxy patterns, and third-party audit preparation.
- Guaranteed Outcomes: 99.9% uptime SLA, gas costs optimized by 30-50%, and deployment readiness in 2-4 weeks.
Our Formal Verification Methodology
Our systematic, multi-stage approach ensures your smart contracts are mathematically proven to be correct, secure, and free from critical vulnerabilities before deployment.
Specification & Property Definition
We translate your business logic into formal, machine-readable specifications. This critical first step defines the exact, provable properties your contract must uphold, eliminating ambiguity.
Model Checking & Theorem Proving
Using tools like Certora Prover and K-Framework, we exhaustively verify your contract's bytecode against the formal specifications, proving correctness across all possible execution paths.
Invariant Verification
We identify and prove critical system invariants—properties that must always hold (e.g., "total supply is constant"). This prevents entire classes of exploits like reentrancy and arithmetic overflow.
Automated Symbolic Execution
Our tools symbolically execute contract code, exploring all potential inputs and states to uncover edge cases and vulnerabilities that traditional testing misses.
Verification Report & Remediation
Receive a detailed, actionable report with formal proofs of correctness and any discovered violations. We provide direct remediation guidance to fix issues at the specification level.
Continuous Formal Verification
Integrate formal verification into your CI/CD pipeline. Every code change is automatically re-verified against the original specifications, ensuring ongoing security.
Business Outcomes of Formal Verification
Formal verification is more than a security audit; it's a strategic investment that delivers measurable business value. We translate mathematical rigor into tangible outcomes for your project and your bottom line.
Eliminate Critical Vulnerabilities
We mathematically prove the absence of entire classes of bugs (reentrancy, overflow, logic flaws) before deployment. This prevents catastrophic losses and protects your project's treasury and user funds from exploits that automated tools miss.
Accelerate Time-to-Market
Integrate formal verification into your CI/CD pipeline to catch logic errors during development, not in production. This reduces costly rework cycles and audit delays, allowing you to deploy complex DeFi protocols and dApps with confidence, faster.
Reduce Long-Term Security Costs
A single, comprehensive formal verification report replaces multiple iterative manual audits. This upfront investment significantly lowers the total cost of security over your protocol's lifecycle by preventing post-launch emergency patches and reputation-damaging incidents.
Ensure Regulatory Compliance Readiness
For projects in regulated spaces like RWA tokenization or institutional DeFi, formal verification provides the highest standard of evidence for code correctness. It demonstrates due diligence and a proactive security posture to regulators and institutional partners.
Future-Proof Protocol Upgrades
Formal specifications act as a single source of truth for your protocol's intended behavior. This ensures all future upgrades and optimizations are provably safe and consistent with the original design, preventing governance disputes and upgrade failures.
Formal Verification vs. Traditional Audits
A technical comparison of two critical approaches to ensuring smart contract security, highlighting the depth, scope, and outcomes of each method.
| Security Aspect | Traditional Code Audit | Chainscore Formal Verification |
|---|---|---|
Methodology | Manual review by experts, heuristic analysis | Mathematical proof of correctness against a formal specification |
Coverage | Sample-based; examines specific execution paths | Exhaustive; verifies all possible states and inputs |
Guarantee | High confidence; identifies many vulnerabilities | Mathematical certainty for specified properties |
Output | Report with vulnerability list and recommendations | Proof certificate and machine-verified property compliance |
Critical Bug Detection | Likely (e.g., reentrancy, logic errors) | Certain for properties defined in the specification |
Time to Completion | 2-4 weeks for standard audit | 3-6 weeks, depending on spec complexity |
Cost Range | $15K - $50K+ | $50K - $150K+ (spec development included) |
Best For | Standard DeFi protocols, MVP launch, compliance checks | High-value systems (bridges, oracles, custody), regulatory-grade assurance |
Ongoing Assurance | New code requires re-audit | Proof remains valid; only new/modified specs need verification |
Our Formal Verification Process
A rigorous, four-phase methodology designed to deliver mathematically proven security for your smart contracts, ensuring they behave exactly as intended.
1. Specification & Scoping
We collaborate with your team to define formal specifications—the precise mathematical properties your contract must satisfy. This includes functional correctness, security invariants, and business logic requirements.
2. Model Building & Theorem Proving
Our experts translate your Solidity/Vyper code into a formal model using tools like K Framework or Coq. We then prove core security theorems (e.g., no reentrancy, correct access control) against the specifications.
3. Property Testing & Fuzzing
We complement theorem proving with exhaustive property-based testing (using Foundry or Echidna) to uncover edge cases the formal model may not cover, ensuring robustness against unexpected inputs.
Technical Specifications & Deliverables
Compare our structured formal verification packages, designed to match your project's security requirements and stage.
| Verification Scope | Starter | Professional | Enterprise |
|---|---|---|---|
Automated Formal Verification | |||
Manual Theorem Proving | |||
Custom Property Specification | 5 core invariants | Up to 20 properties | Unlimited |
Audit Report & Certification | Standard PDF | Detailed + Executive Summary | Detailed + Executive Summary + Public Attestation |
Remediation Support | Guidance only | 2 rounds of re-verification | Unlimited re-verification & on-call support |
Response Time SLA | 5 business days | 48 hours | 4 hours |
Supported Chains/Frameworks | EVM (Solidity) | EVM, Solana (Rust) | EVM, Solana, Move, Cosmos SDK |
Integration with CI/CD | |||
Starting Price | $15,000 | $50,000 | Custom Quote |
Formal Verification FAQs
Get clear answers to the most common questions about our rigorous, mathematically-proven approach to smart contract security.
Our standard engagement for a core protocol module (e.g., a token vault, AMM math library, or staking contract) takes 3-6 weeks. This includes specification writing, verification, and final reporting. Complex, multi-contract systems can take 8-12 weeks. We provide a detailed project plan with milestones before any work begins.
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Our experts will offer a free quote and a 30min call to discuss your project.