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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

Zero-Knowledge Cross-Chain State Verification

We develop custom ZK proof systems that cryptographically verify state—like account balances or smart contract storage—across heterogeneous blockchains (EVM, Solana, Cosmos) without revealing underlying data, enabling trust-minimized interoperability.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy custom Solidity/Rust smart contracts that are secure by design. Every contract undergoes formal verification and is built with battle-tested patterns from OpenZeppelin and Solmate.

From tokenomics to complex DeFi logic, we translate your business requirements into immutable, gas-optimized code.

  • Full Development Lifecycle: Audit-ready contracts from specification to deployment on EVM, Solana, or Cosmos chains.
  • Security First: Multi-signature deployment, comprehensive unit/integration testing, and third-party audit preparation.
  • Measurable Outcomes: Achieve 99.9% uptime SLAs and reduce gas costs by 20-40% through optimization.
key-features-cards
ZK STATE VERIFICATION

Core Technical Capabilities We Deliver

We architect and deploy production-ready zero-knowledge proof systems that enable secure, trust-minimized communication between blockchains. Our solutions are built for scale, security, and seamless integration.

01

Custom ZK Circuit Design & Implementation

We design and implement custom zk-SNARK and zk-STARK circuits for your specific cross-chain state verification logic, ensuring optimal proving times and minimal on-chain verification costs.

Circom / Halo2
Framework
< 5 sec
Proving Time
02

High-Performance Proving Infrastructure

Deploy scalable, multi-threaded proving servers with GPU acceleration to handle high-throughput verification demands, guaranteeing sub-second proof generation for your dApp users.

99.9%
Uptime SLA
GPU-Accelerated
Infrastructure
03

On-Chain Verifier Smart Contracts

We deploy gas-optimized, audited Solidity verifier contracts on your target chains (EVM & non-EVM), enabling any contract to trustlessly verify the validity of cross-chain state proofs.

OpenZeppelin
Security Standard
< 200k gas
Verification Cost
04

Relayer Network & Proof Aggregation

A decentralized, fault-tolerant network for submitting proofs and state updates. Includes proof batching to amortize costs and reduce latency for high-frequency applications.

Multi-Region
Relay Nodes
< 1 sec
Relay Latency
05

Security Audits & Formal Verification

Our ZK systems undergo rigorous internal review and third-party audits by firms like Trail of Bits. We provide formal verification reports for critical circuit logic to eliminate vulnerabilities.

Trail of Bits
Audit Partner
Formal Proofs
Verification
06

Multi-Chain SDK & Developer Tools

Comprehensive TypeScript/Go SDKs and CLI tools for easy integration. Includes local testing environments, monitoring dashboards, and detailed documentation for your engineering team.

TypeScript / Go
SDK Support
2 weeks
Integration Time
benefits
DELIVERABLES

Business Outcomes for Your Project

Our Zero-Knowledge Cross-Chain State Verification service delivers concrete, measurable results for your technical roadmap and business objectives.

01

Accelerated Time-to-Market

Deploy a production-ready, audited cross-chain verification system in under 4 weeks. We provide the complete ZK circuit suite, prover infrastructure, and integration SDKs, eliminating months of R&D.

< 4 weeks
To Production
0
ZK Expertise Required
02

Provable Security & Audit Trail

Every state attestation is backed by a ZK-SNARK proof, providing cryptographic certainty of data integrity. All circuits undergo formal verification and audits by firms like Trail of Bits before deployment.

100%
Cryptographic Guarantee
Formal Verification
Security Standard
03

Sub-Second Finality for Cross-Chain Actions

Enable near-instant cross-chain transactions and composability. Our optimized prover networks generate validity proofs in under 500ms, removing the latency and uncertainty of traditional bridging.

< 500ms
Proof Generation
~1 Block
Finality Time
04

Radical Cost Reduction

Replace expensive multi-sig validator sets and associated operational overhead with a lean, automated ZK prover network. Reduce cross-chain messaging costs by over 90% compared to traditional optimistic bridges.

> 90%
Cost Savings
Automated
Operation
05

Universal Chain Compatibility

Verify state from any source chain (EVM, SVM, Move, Cosmos) to any destination. Our modular circuit design and adapter framework future-proof your architecture against ecosystem fragmentation.

EVM, SVM, Move
Supported VMs
Modular
Architecture
06

Enterprise-Grade SLAs & Monitoring

Operate with confidence under a 99.95% uptime SLA for the prover network. Gain full visibility with real-time dashboards tracking proof latency, success rates, and system health.

99.95%
Uptime SLA
24/7
Monitoring & Support
ZK State Verification

Structured Development Tiers

Compare our service packages for implementing Zero-Knowledge Cross-Chain State Verification, from initial proof-of-concept to enterprise-grade production systems.

Feature / CapabilityStarterProfessionalEnterprise

Custom ZK Circuit Design

Proof Generation & Verification

Basic (Single Chain)

Multi-Chain

Multi-Chain + Custom

Supported Chains

Ethereum, Polygon

Ethereum, Polygon, Arbitrum, Base

All EVM + Custom Integration

Performance SLA

N/A

99.5% Uptime

99.9% Uptime

Proof Generation Time

< 30 sec

< 10 sec

< 2 sec

Security Audit

Basic Review

Full Audit Report

Full Audit + Formal Verification

Integration Support

Documentation

Technical Guidance

Dedicated Engineer

Ongoing Maintenance

Self-Managed

12-Month Support

24/7 Managed Service

Response Time SLA

Business Hours

4 Business Hours

1 Hour

Estimated Timeline

4-6 Weeks

8-12 Weeks

12+ Weeks

Starting Price

$25,000

$75,000

Custom Quote

how-we-deliver
PROVEN FRAMEWORK

Our Development Methodology

We deliver production-ready ZK cross-chain verification with a rigorous, security-first process designed for enterprise-grade reliability and rapid deployment.

01

Architecture & Protocol Design

We design custom ZK circuits and verification logic tailored to your specific cross-chain state (e.g., token balances, NFT ownership, DAO votes). Our approach ensures minimal proof size and verification gas costs on-chain.

Circom / Halo2
Circuit Frameworks
< 200k gas
Target Verification Cost
02

Implementation & Circuit Development

Our engineers write and test ZK circuits, prover/verifier contracts, and relayers in Rust, Go, or Solidity. We implement industry standards like Plonk and Groth16, with a focus on audit-ready code quality.

OpenZeppelin
Security Patterns
100% coverage
Test Target
04

Performance Optimization

We benchmark and optimize proof generation time, verification gas, and relayer latency. Our goal is sub-5 second proof generation and sub-300k gas verification for mainstream EVM chains.

< 5 sec
Proof Generation
99.9% SLA
Relayer Uptime
05

Integration & Deployment

We handle the full deployment lifecycle: deploying verifier contracts, setting up secure relayers, and integrating with your front-end and backend. Includes comprehensive monitoring and alerting.

2-4 weeks
Production Deployment
Multi-chain
EVM & Non-EVM
06

Maintenance & Upgrades

Post-launch, we provide monitoring dashboards, incident response, and protocol upgrade management. Our team ensures your cross-chain verification system scales with your user base.

24/7
Monitoring
< 4 hours
Incident Response
use-cases
INDUSTRY USE CASES

Target Applications and Verticals

Our Zero-Knowledge Cross-Chain State Verification service is engineered for high-stakes applications where trust, security, and interoperability are non-negotiable. We deliver verifiable, trust-minimized bridges for the most demanding Web3 projects.

01

Cross-Chain DeFi & DEXs

Enable secure, trust-minimized asset transfers and liquidity aggregation across EVM and non-EVM chains. Our ZK proofs verify state transitions without relying on third-party oracles, eliminating a critical attack vector for decentralized exchanges and lending protocols.

< 2 sec
Proof Generation
Gas-optimized
On-Chain Verification
02

Institutional Asset Tokenization

Provide auditable, real-world asset (RWA) provenance and compliance across permissioned and public blockchains. Our verification layer ensures the integrity of off-chain asset states (e.g., custody records, legal status) before minting or burning tokens on-chain.

Regulatory-grade
Audit Trail
Multi-chain
Settlement
03

Gaming & NFT Ecosystems

Synchronize player states, inventory, and NFT metadata seamlessly across multiple gaming chains or Layer 2s. Prove ownership and state changes without centralized servers, enabling true cross-chain interoperability for assets and achievements.

Sub-second
State Sync
ERC-6551 Ready
Account Abstraction
04

Enterprise Supply Chain & Logistics

Create an immutable, verifiable ledger of custody and condition changes across private consortium chains and public settlement layers. Prove the state of goods (location, temperature, authenticity) for automated, cross-chain smart contract execution.

IoT-Integrated
Data Source
Automated
Settlement Triggers
05

Cross-Chain Governance & DAOs

Facilitate secure, verifiable voting and treasury management across fragmented DAO sub-communities on different chains. Our system proves vote tallies and proposal outcomes, enabling unified governance without migrating assets or members.

Sybil-resistant
Identity Proofs
Transparent
Treasury Moves
06

Layer 2 & Rollup Bridging

Build ultra-secure, canonical bridges and fast withdrawal systems for Optimistic and ZK Rollups. Our ZK state verification provides mathematically guaranteed finality for cross-L2 and L2→L1 transfers, surpassing 7-day challenge periods.

Instant Finality
For Withdrawals
Rollup-Agnostic
Architecture
Zero-Knowledge State Verification

Frequently Asked Questions

Get clear answers on how our ZK-powered cross-chain verification service works, from integration to security.

A standard integration for a single source and destination chain takes 2-3 weeks. This includes design, smart contract deployment, proof circuit setup, and end-to-end testing. Complex multi-chain or custom logic requirements can extend this to 4-6 weeks. We provide a detailed project plan after the initial technical scoping call.

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