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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 Atomic Swap Verifier

An independent monitoring service that verifies the correct execution and finality of cross-chain atomic swaps involving Bitcoin. We ensure no party can cheat the protocol, providing settlement certainty for your DeFi bridges, DEXs, and OTC desks.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

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

We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your specific business logic. Our team specializes in Solidity, Rust (Solana), and Vyper, delivering audit-ready code from day one.

We deliver contracts that pass security audits on the first review, saving you weeks of rework and risk.

  • Token Standards: ERC-20, ERC-721, ERC-1155, and SPL token implementations.
  • DeFi Protocols: Custom DEXs, lending/borrowing pools, staking mechanisms, and yield aggregators.
  • NFT Ecosystems: Generative minting, royalty enforcement, and marketplace integrations.
  • Governance Systems: DAO tooling, multi-sig wallets, and on-chain voting.

Our development lifecycle includes formal verification, comprehensive unit testing with Hardhat or Foundry, and integration with leading audit firms. We ensure your contracts are upgradeable and future-proof, with a focus on minimizing gas costs by 15-40%.

key-features-cards
TRANSPARENT PROCESS

How Our Atomic Swap Verifier Works

Our verifier is a deterministic, non-custodial service that ensures the integrity of cross-chain asset transfers. We provide cryptographic proof of state, not just API calls.

01

Deterministic State Verification

We cryptographically verify the on-chain state of both source and destination chains using light client proofs and block headers, ensuring the swap conditions are met before execution.

100%
Deterministic
0
False Positives
02

Non-Custodial Security Model

Your assets never touch our infrastructure. The verifier acts as an impartial oracle, providing signed attestations that trigger your smart contracts directly.

100%
User-Controlled Assets
SOC 2
Compliant
03

Multi-Protocol Support

Built to verify swaps across EVM (Ethereum, Polygon, Arbitrum), Cosmos IBC, and Solana. We handle chain-specific consensus and finality rules.

15+
Supported Chains
< 2s
Verification Time
04

Gas-Optimized Integration

Pre-audited, modular smart contracts for easy integration. Our verifier minimizes on-chain computation, reducing gas costs by up to 40% versus custom implementations.

40%
Gas Savings
< 1 week
Integration Time
06

Enterprise-Grade SLAs

Guaranteed 99.95% uptime with sub-500ms p95 latency for verification requests. Includes 24/7 monitoring and alerting for failed swap conditions.

99.95%
Uptime SLA
< 500ms
p95 Latency
benefits
DELIVERABLES

Business Outcomes: Secure & Scalable Cross-Chain Operations

Our Cross-Chain Atomic Swap Verifier service delivers concrete, measurable results for your business, built on audited security and proven infrastructure.

01

Guaranteed Transaction Finality

Eliminate settlement risk with verifiable, on-chain proof of atomic swap completion across chains. Our system provides cryptographic guarantees, not probabilistic assurances.

100%
Atomic Guarantee
< 5 min
Verification Time
02

Zero-Cost Fraud Prevention

Prevent front-running, griefing, and failed swaps without expensive off-chain monitoring services. Our on-chain verifier acts as the single source of truth.

$0
Monitoring Cost
24/7
Enforcement
03

Multi-Chain Liquidity Access

Enable seamless asset swaps between Ethereum, Solana, Polygon, and other EVM/L1 chains without wrapping or centralized bridges. Unlock deeper liquidity pools.

10+
Supported Chains
1 API
Integration Point
04

Reduced Time-to-Market

Deploy a production-ready cross-chain swap feature in weeks, not months. We provide the verifier smart contracts, SDKs, and integration support.

< 3 weeks
Deployment
Full SDK
Included
05

Enterprise-Grade Uptime SLA

Built on decentralized oracle networks and redundant relayers, ensuring your cross-chain operations are always available. Formal SLA available for enterprise clients.

99.9%
Uptime SLA
Multi-Region
Relayers
The Infrastructure Decision

Build Your Own vs. Chainscore's Managed Verifier

A detailed comparison of the time, cost, and risk involved in developing and operating a cross-chain atomic swap verifier in-house versus using Chainscore's production-ready, managed service.

FactorBuild In-HouseChainscore Managed Service

Time to Production

6-12 months

2-4 weeks

Initial Development Cost

$150K - $400K+

From $25K

Security Audit Requirement

Mandatory (extra $50K-$100K)

Included (pre-audited)

Ongoing Maintenance & Updates

2-3 FTE Engineers

Fully Managed

Uptime & Monitoring SLA

Your responsibility

99.9% Guaranteed

Multi-Chain Support Setup

Per-chain integration

Pre-configured for 15+ chains

Response Time for Critical Issues

Team-dependent

< 1 hour (SLA)

Total Cost of Ownership (Year 1)

$300K - $600K+

$50K - $150K

Protocol Upgrade Handling

Manual re-audit & deployment

Automated, backward-compatible

use-cases
TARGET AUDIENCES

Who Needs Atomic Swap Verification?

Cross-chain atomic swaps eliminate counterparty risk, but verifying their correctness and security is a complex, resource-intensive challenge. Our verification service is essential for teams that cannot afford settlement failures or security vulnerabilities.

process-walkthrough
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by expert Solidity engineers.

We architect and deploy custom smart contracts that power your Web3 product. Our development process is built for security and speed, delivering a 2-week MVP for standard token or NFT contracts.

  • Security-First Development: Code built on Solidity 0.8+ with OpenZeppelin standards and comprehensive unit/integration testing.
  • Full-Stack Integration: Contracts designed for seamless interaction with your frontend, backend, and oracles.
  • Gas Optimization: Every line is written for cost-efficiency, reducing user transaction fees by up to 40%.
  • Post-Deployment Support: Includes verification on Etherscan, deployment scripts, and initial monitoring setup.

We don't just write code; we deliver the secure, auditable foundation your dApp needs to launch with confidence.

Technical & Commercial Details

Atomic Swap Verification FAQs

Get clear, specific answers to the most common questions about our Cross-Chain Atomic Swap Verifier service, from security to deployment.

Our verification is a multi-layered process. First, we perform a formal verification of the smart contract logic against the atomic swap protocol specification (e.g., HTLC, DLC). Next, we conduct extensive unit and integration testing across all supported chains (EVM, Solana, Cosmos SDK). Finally, we run simulated mainnet attacks to identify edge cases in timing, liquidity, and network congestion. This ensures the swap logic is mathematically sound and resilient in production.

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 Atomic Swap Verifier | Chainscore Labs | ChainScore Guides