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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

EVM Smart Contract Formal Verification

We mathematically prove the correctness of your Solidity or Vyper contracts using theorem provers and symbolic execution. Eliminate entire classes of vulnerabilities for high-assurance DeFi, lending, and custody protocols.
Chainscore © 2026
overview
SERVICE

Blockchain Infrastructure

Enterprise-grade node infrastructure and RPC services for production-ready applications.

We provide dedicated, high-availability nodes and global RPC endpoints with 99.9% uptime SLAs. Our infrastructure eliminates the operational overhead of self-hosting, ensuring your team can focus on building core product features.

  • Multi-Chain Support: Full nodes for Ethereum, Polygon, Arbitrum, Base, and Solana.
  • Enhanced APIs: Access to debug and trace APIs, archival data, and WebSocket connections.
  • Performance & Reliability: Geo-distributed load balancing, automatic failover, and <1s response times.
  • Security First: Private endpoints, DDoS protection, and SOC 2 compliant data handling.

Deploy with a single API key. Scale instantly without managing servers, monitoring, or upgrades. We handle the infrastructure so you can guarantee performance for your users.

key-features-cards
RIGOROUS & TRANSPARENT

Our Formal Verification Methodology

We apply mathematical proof techniques to guarantee your smart contracts behave as intended, eliminating entire classes of vulnerabilities that automated tools miss.

01

Specification & Modeling

We translate your business logic and security requirements into formal, machine-readable specifications. This creates an unambiguous mathematical model of your contract's intended behavior.

100%
Logic Coverage
Zero Ambiguity
Requirements
02

Theorem Proving

Using tools like K Framework and Isabelle/HOL, we construct mathematical proofs that your contract's code correctly implements its formal specification under all possible conditions.

Exhaustive
Proof Coverage
Formal Guarantee
Correctness
03

Property Verification

We verify critical security and functional properties—such as no reentrancy, correct access control, token supply invariants, and overflow safety—with mathematical certainty.

100%
Property Proof
Zero False Positives
Findings
04

Comprehensive Reporting

Receive a detailed verification report with the formal specifications, proof scripts, and a plain-English summary of guarantees. This document serves as a critical asset for security audits and investor due diligence.

Audit-Ready
Documentation
Actionable
Insights
05

Integration with Development

Our methodology integrates into your CI/CD pipeline. We verify each commit against the formal spec, preventing regressions and ensuring ongoing correctness as your protocol evolves.

Continuous
Verification
Pre-Deployment
Safety Net
06

Expert-Led Process

Every engagement is led by PhD-level researchers and engineers with proven experience in formal methods for blockchain, ensuring the highest standard of rigor and practical applicability.

PhD-Level
Expertise
Protocol Veterans
Experience
benefits
THE INDUSTRY STANDARD

Why High-Stakes Protocols Choose Formal Verification

For protocols securing billions in TVL, a standard security audit is a checkpoint; formal verification is a mathematical proof of correctness. Here's why leading DeFi, RWA, and institutional projects demand it.

A Technical Comparison for CTOs

Formal Verification vs. Traditional Auditing

Understand the key differences in methodology, coverage, and security guarantees between formal verification and manual code review for EVM smart contracts.

Evaluation CriteriaTraditional Manual AuditChainscore Formal Verification

Methodology

Manual code review by human auditors

Mathematical proof of correctness using automated theorem provers

Security Guarantee

Probabilistic (finds bugs, can't prove absence)

Deterministic (proves absence of entire bug classes)

Coverage

Sample-based (limited by time/scope)

Exhaustive (verifies all possible execution paths)

Time to Complete

2-4 weeks for standard audit

1-2 weeks for initial verification report

Cost for Standard Project

$15K - $50K (one-time)

$25K - $75K (includes specification development)

Ongoing Assurance

Requires re-audit after major changes

Continuous verification with CI/CD integration

Ideal For

Early-stage prototypes, simple logic

High-value DeFi protocols, bridges, custody solutions

Output

PDF report with vulnerability list

Machine-verifiable proof + human-readable spec

how-we-deliver
METHODOLOGY

Our Four-Phase Verification Process

A rigorous, multi-layered approach that systematically eliminates vulnerabilities and mathematically proves the correctness of your smart contract logic, delivering a final report you can stake your reputation on.

01

1. Specification & Modeling

We translate your business logic and requirements into a formal, machine-readable specification. This creates a single source of truth for the contract's intended behavior, eliminating ambiguity before a single line of code is verified.

100%
Requirement Coverage
Certified
TLA+ / ACSL
02

2. Automated Theorem Proving

Using tools like K Framework and Isabelle/HOL, we construct mathematical proofs that your Solidity/Vyper code adheres to the formal specification. This exhaustively checks all possible execution paths, not just a sample.

Exhaustive
State Space Analysis
Formal Proof
Guarantee
03

3. Symbolic Execution & Fuzzing

We complement formal proofs with advanced dynamic analysis. Symbolic execution explores complex code paths, while differential fuzzing compares your contract against a reference implementation to uncover hidden edge cases.

10M+
Test Cases Generated
>95%
Branch Coverage
04

4. Verification Report & Certification

You receive a comprehensive, auditor-ready report detailing the verification process, proven properties, and any residual assumptions. This artifact provides unparalleled assurance for your team, investors, and users.

Auditor-Ready
Final Report
Zero Critical
Bug Guarantee
Evaluating a Critical Security Investment

Formal Verification: Key Questions for Technical Leaders

Before committing to a formal verification engagement, technical leaders need clear answers on process, outcomes, and ROI. Here are the most common questions we address for CTOs and engineering leads.

Our process is designed for seamless integration. We embed our verification engineers into your sprint cycles, typically 2-3 weeks behind your development team. We use your existing GitHub/GitLab repos, require only a formal specification document, and deliver verification reports as PR comments. This allows for continuous feedback and prevents security debt from accumulating, aligning with CI/CD best practices.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team