We architect and deploy audit-ready smart contracts for DeFi, NFTs, and enterprise applications. Our team specializes in Solidity 0.8+, Vyper, and Rust, implementing OpenZeppelin standards and gas-optimized patterns from day one.
LABS
Services
Multi-Chain Bridge Sanctions Shield
A real-time transaction screening and blocking service for cross-chain bridge protocols. Prevent sanctioned entities from moving assets between networks, ensuring regulatory compliance and reducing legal risk.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
- Full Lifecycle Delivery: From specification and development to testing, deployment, and on-chain monitoring.
- Security-First Approach: Rigorous internal review using
SlitherandMythrilprecedes formal audits with top firms. - Protocol Integration: Seamless connections to
Chainlinkoracles, cross-chain bridges, and major DeFi primitives.
We deliver contracts with 99.9% uptime SLAs and comprehensive documentation, ensuring your core logic is both robust and maintainable.
key-features-cards
ENFORCEMENT ARCHITECTURE
How the Multi-Chain Sanctions Shield Works
Our multi-layered defense system integrates directly into your bridge's smart contracts and off-chain infrastructure to provide real-time, compliant transaction screening.
01
Real-Time On-Chain Screening
Every cross-chain transaction is validated against OFAC and global sanctions lists before finality. Our smart contract modules perform automated checks, blocking non-compliant transfers at the protocol level.
< 100ms
Validation Latency
24/7
List Updates
02
Multi-Source Data Aggregation
We aggregate and normalize sanctions data from OFAC, UN, EU, and other global regulatory bodies into a single, actionable feed. This ensures your bridge is protected against the most current threats.
50+
Global Lists
99.9%
Data Accuracy SLA
03
Customizable Risk Policies
Define and enforce your own compliance rules. Set thresholds for transaction volume, geographic restrictions, and entity types directly through our management dashboard or API.
Zero-Code
Policy Setup
< 5 min
Rule Deployment
04
Immutable Compliance Audit Trail
Every screening decision—pass or block—is logged with cryptographic proof on-chain. Generate verifiable reports for auditors in minutes, not weeks, simplifying regulatory reviews.
100%
Event Coverage
On-Chain
Proof of Compliance
05
Seamless Bridge Integration
Deploy our audited smart contract modules for popular bridging protocols (LayerZero, Axelar, Wormhole, etc.) or use our API for custom setups. No core bridge logic modifications required.
< 2 weeks
Standard Deployment
Zero Downtime
Integration
06
Proactive Threat Intelligence
Our system monitors emerging wallet clustering patterns and sanctions designations, providing alerts and automated rule suggestions to keep your bridge ahead of new compliance requirements.
Real-Time
Alerts
24/7
Monitoring
benefits
GUARANTEED RESULTS
Business Outcomes for Your Bridge
Our Multi-Chain Bridge Sanctions Shield delivers measurable security and compliance outcomes, enabling you to scale with confidence and protect your users.
01
Regulatory Compliance Assurance
Automated, real-time screening against global sanctions lists (OFAC, UN, EU) across 50+ blockchains. Eliminate manual review and ensure your bridge operates within legal frameworks.
50+
Lists Monitored
< 100ms
Screening Latency
02
Zero False Positive Rate
Proprietary address clustering and entity resolution algorithms minimize operational disruption. Our system is fine-tuned to identify sanctioned entities, not innocent users.
0%
Guaranteed False Positives
99.99%
Entity Accuracy
03
Uninterrupted Bridge Operations
Maintain 99.9% uptime SLA with our non-custodial, gas-optimized smart contracts. Security checks happen off-chain, ensuring user transactions are never delayed.
99.9%
Uptime SLA
0s
On-Chain Delay
04
Rapid Integration & Deployment
Get your bridge secured in under 2 weeks. Our modular API and SDK integrate with existing infrastructure (LayerZero, Axelar, Wormhole, CCTP) without protocol changes.
< 2 weeks
Time to Secure
5
Integration Steps
05
Audit-Ready Security Posture
Receive a comprehensive compliance report and verifiable proof of screening for all transactions. Pass due diligence from exchanges, auditors, and regulators effortlessly.
100%
Transaction Coverage
24/7
Audit Trail
06
Reduced Operational Overhead
Cut compliance team costs by automating sanctions screening. Our managed service handles list updates, monitoring, and alerting, freeing your team to focus on growth.
80%
Cost Reduction
Auto
List Updates
Infrastructure Decision Matrix
Build vs. Buy: Sanctions Screening for Bridges
A detailed comparison of the time, cost, and risk involved in developing sanctions screening in-house versus implementing Chainscore's Multi-Chain Bridge Sanctions Shield.
| Factor | Build In-House | Chainscore Sanctions Shield |
|---|---|---|
Time to Production | 6-12 months | 2-4 weeks |
Initial Development Cost | $250K - $500K+ | $15K - $50K |
Security & Audit Overhead | High (Unaudited Risk) | Low (Pre-Audited Module) |
Regulatory List Coverage | Manual Integration | Real-time OFAC, UN, EU + 40+ Lists |
Multi-Chain Support | Per-Chain Implementation | Unified API (10+ EVM & Non-EVM Chains) |
False Positive Rate | 15-25% (Typical) | < 5% (ML-Tuned) |
Ongoing Maintenance | Full DevOps & Eng Team | Fully Managed Service |
Compliance Liability | Your Responsibility | Shared via Service SLA |
Total Cost of Ownership (Year 1) | $400K - $750K+ | $75K - $150K |
how-we-deliver
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise protocols. Our development process includes formal verification, gas optimization, and comprehensive audit preparation to ensure security and efficiency from day one.
We deliver battle-tested code that scales, with a focus on upgradability and long-term maintainability.
- Protocols:
ERC-20,ERC-721,ERC-1155, custom DeFi logic. - Stack: Solidity 0.8+, Hardhat/Foundry, OpenZeppelin libraries.
- Outcome: A secure, auditable codebase ready for mainnet deployment in 2-4 weeks.
Multi-Chain Bridge Sanctions Shield
Frequently Asked Questions
Get clear answers on how our sanctions compliance solution integrates with your cross-chain infrastructure.
Our solution deploys as a modular smart contract layer that sits between your bridge's core logic and the final settlement. We provide SDKs and API hooks for seamless integration with popular bridge frameworks (e.g., Axelar, Wormhole, LayerZero, custom). Typical integration requires adding a pre-settlement validation call to our on-chain verifier, which checks all transaction participants against real-time sanctions lists. We've integrated with 20+ bridge architectures, with deployment typically taking 1-3 weeks.
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