We deliver audit-ready code for ERC-20, ERC-721, and custom protocols, reducing your time-to-market by weeks. Our process includes formal verification and comprehensive unit testing to ensure zero critical vulnerabilities at launch.
LABS
Services
AI-Audited Cross-Chain ZK Bridge Verification
We design and audit trust-minimized cross-chain bridges using AI-optimized Zero-Knowledge light client proofs. Our focus is on maximizing verification speed and security under adversarial conditions to ensure reliable, cost-effective interoperability.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
- Custom Logic: DeFi primitives, NFT mechanics, DAO governance, and bespoke business logic.
- Security-First: Built with
OpenZeppelinlibraries and adherence to Consensys best practices. - Full Lifecycle: Development, deployment scripting, and on-chain verification on Ethereum, Polygon, Arbitrum, and Base.
We guarantee 99.9% uptime SLA for deployed contracts and provide post-launch monitoring for anomalous activity.
key-features-cards
VERIFIED CROSS-CHAIN SECURITY
Core Capabilities of Our ZK Bridge Verification Service
Our service provides the cryptographic guarantees and operational reliability required to secure high-value asset transfers between blockchains. We deliver the foundational security layer for your bridge, enabling trustless interoperability.
01
Zero-Knowledge Proof Generation
We design and implement custom zk-SNARK/STARK circuits to generate succinct proofs of state transitions and asset locks on the source chain. This enables verifiable claims on the destination chain without revealing underlying transaction data.
Sub-second
Proof Generation
Plonk / Halo2
Proving Systems
02
On-Chain Verifier Contracts
Deployment of highly optimized, gas-efficient Solidity/Yul verifier smart contracts on your target chains (EVM, L2s, etc.). Our contracts are built with security-first patterns and undergo rigorous formal verification.
< 200k gas
Avg. Verification Cost
OpenZeppelin
Security Standards
03
Relayer Infrastructure & Monitoring
We provide a managed, high-availability relayer service that submits proofs and data to verifier contracts. Includes 24/7 monitoring, alerting for failed proofs, and automatic retry mechanisms with full observability dashboards.
99.95%
Uptime SLA
< 5 sec
Relay Latency
05
Multi-Chain Protocol Support
Expertise in verifying state from diverse source chains including Ethereum, Polygon, Arbitrum, Optimism, and Cosmos-SDK chains. We handle chain-specific data availability and consensus finality requirements.
10+
Supported Chains
EVM & Non-EVM
Architectures
06
Integration & Developer Tooling
Complete SDKs and APIs for seamless integration with your existing bridge front-end and backend. Includes testing frameworks for circuits in-dev, simulation environments, and comprehensive documentation.
TypeScript / Go
SDK Languages
< 2 weeks
Integration Timeline
benefits
DELIVERABLES
Business Outcomes: Faster, Cheaper, More Secure Bridges
Our ZK-based verification service delivers concrete, measurable improvements to your cross-chain infrastructure. We focus on the technical and business results that matter for scaling.
01
Sub-Second Finality Verification
Our zero-knowledge proofs verify cross-chain state transitions in milliseconds, enabling near-instant finality for users. This eliminates the multi-minute wait times of optimistic bridges.
< 1 sec
Proof Verification
0
Challenge Period
02
Up to 90% Lower Transaction Costs
ZK verification removes the need for expensive on-chain fraud proofs and dispute games. Your bridge operates with predictable, minimal gas costs for the core verification logic.
90%
Gas Cost Reduction
Predictable
Fee Model
03
Formally Verified Security
Every verification circuit undergoes formal verification and audits by leading security firms. We provide cryptographic guarantees, not probabilistic security assumptions.
100%
Audit Coverage
Formal Proofs
Security Model
04
Multi-Chain Agnostic Design
Our modular architecture supports Ethereum, EVM L2s, Solana, and Cosmos. Future-proof your bridge with a single, adaptable verification layer instead of per-chain integrations.
10+
Supported Chains
Weeks
New Chain Integration
05
Enterprise-Grade Reliability
Built with 99.9% uptime SLAs and automated failover. Our prover networks are geographically distributed to ensure continuous operation and censorship resistance.
99.9%
Uptime SLA
Geo-Redundant
Prover Network
06
Developer-First Integration
Get a production-ready verification layer in weeks, not months. Our SDKs and comprehensive documentation abstract away ZK complexity for your engineering team.
< 4 weeks
Time to Integrate
Full SDK
Deliverable
Infrastructure Decision Matrix
Build vs. Buy: AI-Audited ZK Verification vs. Alternatives
A detailed comparison of approaches for securing cross-chain ZK bridges, highlighting the operational and financial impact of building in-house versus leveraging a specialized, audited service.
| Factor | Build In-House | Third-Party Auditors | Chainscore AI-Audited Service |
|---|---|---|---|
Time to Market | 6-12 months | Adds 2-4 months | 4-8 weeks |
Initial Development Cost | $250K - $750K+ | $50K - $200K audit fee | $25K - $100K service fee |
Security Expertise Required | Hire senior ZK/audit team | Provided temporarily | Continuously provided by us |
Verification Coverage | Manual, scope-limited | Point-in-time snapshot | Continuous AI + expert review |
Ongoing Maintenance & Updates | Your team's responsibility | Additional engagement required | Included in service SLA |
Mean Time to Detect (MTTD) Vulnerabilities | Weeks to months | Post-audit only | < 24 hours |
Total Cost of Ownership (Year 1) | $500K - $1.2M+ | $250K - $400K | $80K - $180K |
Audit Artifacts & Proofs | Internal reports | PDF report | Live dashboard, verifiable proofs, action plan |
Support for Novel ZK Circuits | Your team's R&D | Limited experience | Specialized in cutting-edge ZK (Plonk, Halo2, etc.) |
Risk of Bridge Exploit | High (unaudited or stale audit) | Medium (delayed detection) | Low (continuous protection) |
how-we-deliver
A PROVEN FRAMEWORK
Our Methodology: From Design to Adversarial Audit
We deliver verifiable security for your cross-chain bridge through a rigorous, multi-stage process designed to eliminate vulnerabilities before deployment.
01
Architectural Threat Modeling
We begin by deconstructing your bridge's design to identify potential attack vectors—from message relayer trust assumptions to state synchronization risks. This proactive analysis informs a robust security-first architecture.
50+
Attack Vectors Modeled
Zero-Trust
Design Principle
02
Formal Specification & Implementation
Our team translates the secure design into mathematically precise specifications using TLA+ or similar tools, then implements the ZK circuits and smart contracts in Solidity/Rust with OpenZeppelin and Halo2 libraries.
100%
Code Coverage Target
Sol 0.8.23+
Compiler Standard
03
Comprehensive Internal Testing
We execute thousands of test scenarios, including edge cases for multi-chain reorgs, validator set changes, and economic attacks. Our testing suite includes property-based, fuzz, and differential testing against reference implementations.
10K+
Test Scenarios
100%
Branch Coverage
04
Independent Security Audit
Your bridge undergoes a rigorous review by a top-tier, independent security firm (e.g., Trail of Bits, Quantstamp). We manage the entire audit process, from scope definition to vulnerability remediation verification.
Tier-1
Audit Partners
Critical → Resolved
Issue Triage
05
Adversarial Testnet Deployment
Before mainnet launch, we deploy to a incentivized testnet environment, running bug bounty programs and adversarial simulations to uncover issues in a live, multi-chain setting under real economic conditions.
$500K+
Bounty Pool
4+ Chains
Test Environment
06
Continuous Monitoring & Response
Post-launch, we provide 24/7 monitoring of bridge health, anomalous transaction patterns, and governance proposals. Our team is on-call to respond to incidents with predefined escalation and mitigation playbooks.
24/7
Security Ops
< 5 min
Alert Response SLA
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists for your protocol or dApp.
We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited code patterns and rigorous testing to mitigate risk and ensure reliability from day one.
- Protocol Development: Custom
ERC-20,ERC-721,ERC-1155, and bespoke token standards. - DeFi & DAOs: Automated market makers (AMMs), staking pools, governance systems, and multi-sig vaults.
- Security First: Development with
OpenZeppelinlibraries, comprehensive unit/integration testing, and pre-audit readiness. - Full Lifecycle: From initial architecture and development to deployment, verification, and ongoing maintenance on chains like Ethereum, Polygon, Arbitrum, and Base.
We deliver battle-tested contracts that reduce your time-to-market and provide a foundation you can trust for scaling.
Technical & Commercial Details
Frequently Asked Questions on ZK Bridge Verification
Get clear, specific answers to the most common questions from CTOs and technical founders evaluating cross-chain ZK bridge solutions.
Our standard ZK bridge verification deployment takes 4-8 weeks from kickoff to mainnet launch. This includes 1-2 weeks for design and specification, 2-4 weeks for core development and integration, and 1-2 weeks for security audits and final testing. For complex multi-chain deployments or custom consensus mechanisms, timelines are scoped individually during the discovery phase.
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