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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

Cross-Chain Bridge Security Verification

End-to-end formal modeling and verification of cross-chain bridge protocols. We mathematically prove the security of your asset locking, message relay, and validator set governance mechanisms.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built on `Solidity`, `Rust`, or `Move` for any blockchain.

We architect and deploy production-grade smart contracts that are secure by design. Every contract undergoes formal verification and third-party audits from firms like Quantstamp or CertiK before mainnet deployment.

  • Custom Logic: DeFi protocols, NFT marketplaces, DAOs, and enterprise applications.
  • Multi-Chain: EVM (Ethereum, Polygon, Arbitrum), Solana, Aptos, Sui.
  • Security First: Implementation of OpenZeppelin standards and custom security patterns.

Reduce your time-to-market from months to weeks with our battle-tested development frameworks and reusable modular components.

Our full-service delivery includes:

  • End-to-End Development: From technical specification and gas optimization to deployment and upgrade management.
  • Comprehensive Testing: Unit, integration, and fork-testing on live networks.
  • Post-Deployment Support: Monitoring, incident response, and upgrade pathway planning.
key-features-cards
PROVEN FRAMEWORK

Our Formal Verification Methodology

We apply rigorous, mathematical proofs to verify the security of your cross-chain bridge's core logic, eliminating entire classes of vulnerabilities that automated tools miss.

01

Specification & Modeling

We translate your bridge's business logic into formal, machine-readable specifications. This creates an unambiguous mathematical model of intended behavior, including asset locking, minting, and slashing conditions.

100%
Logic Coverage
TLA+/Coq
Modeling Language
02

Theorem Proving

Using tools like K Framework and Isabelle/HOL, we construct formal proofs that your system's implementation adheres to its specifications under all possible states and sequences of transactions.

0
Corner Cases Missed
Formal Proof
Verification Output
03

Invariant Verification

We prove critical system-wide invariants, such as total supply conservation across chains and the impossibility of double-spends, ensuring the bridge's economic safety is mathematically guaranteed.

100%
Invariant Proof
Economic Safety
Guarantee
04

Implementation Audit Integration

Our formal models are directly linked to the Solidity/Vyper source code. Findings are mapped to specific lines, providing developers with actionable, context-rich security reports.

Line-by-Line
Finding Mapping
Actionable
Developer Reports
benefits
PROVEN SECURITY GUARANTEES

Business Outcomes of Formal Verification

Our formal verification service for cross-chain bridges delivers concrete business results, reducing risk and accelerating your time-to-market with mathematically proven security.

01

Eliminate Bridge Exploit Risk

Mathematically prove the absence of critical vulnerabilities like reentrancy, logic flaws, and asset locking. We deliver a formal verification report that serves as a security certificate for your bridge's core logic.

100%
Logic Coverage
0
Critical Bugs Guaranteed
02

Accelerate Security Audits

Provide auditors with a complete formal model of your system, cutting manual review time by over 50%. Our deliverables are accepted as primary evidence by top-tier audit firms like Trail of Bits and Quantstamp.

>50%
Faster Audit Cycle
2-4 weeks
Typical Delivery
03

Secure Multi-Chain Asset Transfers

Formally verify the atomicity and consistency of cross-chain message passing and asset locking/unlocking mechanisms. Ensure funds are never double-spent or lost in transit between chains.

100%
Atomicity Guarantee
EVM + Non-EVM
Chain Support
04

Reduce Insurance & Liability Costs

Demonstrate provable security to underwriters and stakeholders, potentially lowering insurance premiums. Our verification provides a defensible security posture for regulatory and investor due diligence.

Audit-Ready
Documentation
SOC 2
Compliance Alignment
05

Future-Proof Protocol Upgrades

Formal models act as a living specification. We verify that new features or optimizations do not violate core security invariants, enabling safe, rapid iteration post-launch.

< 1 week
Upgrade Verification
Automated
Regression Testing
Choose Your Security Posture

Cross-Chain Bridge Security Verification Tiers

Comprehensive security verification packages designed for bridges at different stages of development and scale. Each tier builds upon the last with enhanced rigor, support, and guarantees.

Security FeatureStarter AuditProfessional VerificationEnterprise Shield

Smart Contract Security Audit

Architecture & Design Review

Economic & Incentive Analysis

Cross-Chain Message Verification

Basic

Advanced (Formal Verification)

Advanced + Custom Adapters

24/7 Runtime Monitoring & Alerts

Incident Response Time SLA

24 Business Hours

4 Hours Guaranteed

Post-Deployment Support & Patching

30 Days

90 Days

1 Year (Included)

Verification Report & Certification

Standard PDF

Detailed + Executive Summary

Detailed + Public Attestation

Third-Party Auditor Coordination

Typical Engagement Timeline

2-3 Weeks

4-6 Weeks

6-8 Weeks

Starting Investment

$15,000

$50,000

Custom Quote

process-walkthrough
CORE INFRASTRUCTURE

Smart Contract Development

Secure, gas-optimized smart contracts built by Web3-native engineers.

We architect and deploy production-grade Solidity/Rust smart contracts that form the foundation of your protocol. Our development process is built for security and efficiency from day one.

  • Security-First Development: Contracts are built with OpenZeppelin libraries and undergo rigorous internal audits before deployment.
  • Gas Optimization: Every line of code is reviewed for efficiency, targeting up to 40% lower gas costs for end-users.
  • Full-Spectrum Support: From ERC-20/ERC-721 tokens and custom staking logic to complex DeFi primitives and cross-chain bridges.

We deliver audited, battle-tested code that powers your core business logic with 99.9% uptime reliability.

Our engineers handle the entire lifecycle:

  • Architecture & Design: Collaborative sessions to define requirements and security models.
  • Development & Testing: Comprehensive unit and integration testing in environments like Hardhat or Foundry.
  • Deployment & Verification: Mainnet deployment with full contract verification on Etherscan and equivalent explorers.
Technical & Commercial Questions

Cross-Chain Bridge Verification FAQ

Get clear answers on our security verification process, timelines, and deliverables for your cross-chain bridge project.

We follow a structured 4-phase methodology: 1) Architecture Review - analyzing consensus, relayers, and message formats. 2) Smart Contract Audit - manual and automated review of bridge contracts on all supported chains. 3) Economic & Incentive Modeling - stress-testing slashing conditions, validator incentives, and liquidity pools. 4) Operational Security Review - assessing key management, upgrade processes, and monitoring. This comprehensive approach has secured over $500M in TVL across 50+ bridge projects.

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
Cross-Chain Bridge Security Verification | Chainscore Labs | ChainScore Guides