We architect and deploy custom smart contracts that form the backbone of your dApp. Our process is built for security and speed, delivering a 2-4 week MVP for most projects. We specialize in ERC-20, ERC-721, ERC-1155, and custom token standards, as well as DeFi primitives like AMMs and lending pools.
LABS
Services
Smart Contract Audit for Hybrid NFTs
Specialized security reviews for smart contracts managing the critical link between physical assets and their digital twins. We identify and mitigate risks in ownership transfer and state synchronization.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
- Security-First Development: All code follows
OpenZeppelinbest practices and undergoes multi-stage internal audits before deployment. - Gas Optimization: We write efficient code to minimize transaction fees, a critical factor for user adoption.
- Full Lifecycle Support: From initial architecture and testing on
Hardhat/Foundryto deployment and verification on mainnet.
We don't just write code; we deliver the secure, auditable financial logic that powers your product. Our contracts are built to scale, integrate, and withstand market conditions.
key-features-cards
COMPREHENSIVE SECURITY REVIEW
Our Phygital NFT Audit Focus Areas
We conduct rigorous, protocol-specific audits for hybrid NFT systems, ensuring the secure integration of on-chain tokens with real-world assets and experiences.
01
Asset Linkage & Redemption Logic
We audit the smart contract logic that binds physical assets to NFTs, verifying secure minting, redemption, and transfer of ownership rights to prevent duplication or fraud.
100%
Logic Coverage
ERC-6551
Standard Focus
02
Oracle & Data Feed Security
We validate the integrity and reliability of off-chain data feeds (Chainlink, Pyth) that trigger physical fulfillment, ensuring resistance to manipulation and downtime.
Multi-Source
Feed Validation
< 2 sec
Response SLA
03
Royalty & Revenue Stream Enforcement
We verify that secondary market royalties and automated revenue splits for physical partners are enforced correctly according to ERC-2981 and custom logic.
0%
Leakage Tolerance
ERC-2981
Compliance
04
Access Control & Privilege Management
We map and test all administrative functions (minting, pausing, updating metadata) to prevent unauthorized changes to the physical asset linkage or contract state.
Role-Based
Access Model
OpenZeppelin
Libraries
05
Gas Optimization & Scalability
We analyze and optimize contract functions for minting, batching, and transfers to ensure low-cost operations at scale for mass consumer adoption.
40-60%
Gas Reduction
>10k TPS
Tested Scale
06
Compliance & Regulatory Alignment
We review token mechanics for adherence to relevant frameworks, ensuring programmable compliance for geographically-gated physical redemptions and KYC checks.
GDPR/OFAC
Framework Review
Modular
Design
benefits
BEYOND STANDARD SECURITY
Why a Specialized Audit is Critical for Hybrid NFTs
Hybrid NFTs combine on-chain logic with off-chain data, creating unique attack surfaces that generic audits miss. Our specialized review targets the critical integration points where most vulnerabilities occur.
01
Cross-Layer Logic Validation
We audit the full data flow: from on-chain token logic to off-chain metadata resolution and back. This ensures your hybrid asset behaves predictably under all conditions, preventing exploits at the protocol boundary.
100%
Integration Coverage
ERC-6551, 404
Protocols Audited
02
Dynamic State & Upgrade Security
Hybrid NFTs often have mutable traits or upgradeable components. We rigorously test state transition logic and admin functions to prevent unauthorized modifications, asset freezing, or metadata corruption.
Zero
Privilege Escalations
OpenZeppelin
Libraries Verified
03
Gas Optimization for Complex Interactions
Minting, trading, and evolving hybrid NFTs can be gas-intensive. We identify and refactor inefficient patterns, reducing gas costs by 15-40% for your users while maintaining security guarantees.
15-40%
Gas Reduction
Solady
Optimized Patterns
04
Oracle & External Data Integrity
We verify the security of any external data feeds (Chainlink, Pyth) or signature-based validation used to update NFT states. This prevents manipulation and ensures the integrity of off-chain attributes.
100%
Oracle Review
Signature Replay
Common Flaw Fixed
06
Post-Audit Threat Monitoring
Security doesn't end with the report. We provide guidance on setting up runtime monitoring (e.g., Forta, Tenderly) for your deployed contracts to detect anomalous behavior related to your hybrid NFT logic.
24/7
Alert Framework
Tenderly, Forta
Tool Integration
Choose the right audit depth for your project
Hybrid NFT Audit Packages
Our tiered audit packages are designed to provide the appropriate level of security scrutiny and post-audit support for Hybrid NFT projects, from pre-launch startups to established platforms.
| Audit Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Smart Contract Security Audit | |||
Gas Optimization Review | |||
Hybrid Logic Analysis (On-Chain/Off-Chain) | Basic | Comprehensive | Comprehensive |
Vulnerability Report & Remediation Guide | |||
Deployment Support & Verification | |||
Post-Launch Monitoring (30 days) | |||
Priority Support Response Time | 48h | 12h | 2h |
Re-audit for Critical Updates | 1 included | Unlimited | |
Formal Verification (Optional Add-on) | |||
Starting Price | $8,000 | $25,000 | Custom Quote |
how-we-deliver
END-TO-END SECURITY
Our Phygital Audit Methodology
We secure the entire hybrid NFT lifecycle, from on-chain logic to physical redemption, ensuring seamless and trustless interaction between digital assets and real-world goods.
01
On-Chain Logic & Token Standards
Comprehensive review of your ERC-721/1155 contracts, minting mechanics, and token-gating logic for physical claims. We ensure gas efficiency and compliance with established standards.
ERC-721A
Optimized Standard
> 100
Contracts Audited
02
Redemption & Claim Verification
Deep audit of the verification bridge linking token ownership to physical fulfillment. We test for logic flaws, replay attacks, and secure oracle integration for real-world proof.
0
False Claim Vectors
Multi-Sig
Oracle Security
03
Supply Chain & Provenance Tracking
Security assessment of provenance logs and inventory management systems. We verify immutability of the physical item's journey from creation to final delivery.
End-to-End
Chain of Custody
IPFS/Arweave
Data Integrity
04
Frontend & Integration Security
Penetration testing of dApp interfaces, wallet connectors, and admin dashboards to prevent UX-based exploits and secure user interactions with the phygital system.
OWASP Top 10
Compliance
Wallet Guard
Integration Audit
05
Economic & Game Theory Analysis
Stress-testing tokenomics, fee structures, and incentive models for your phygital ecosystem to ensure long-term sustainability and resistance to manipulation.
Sybil Attack
Resistance Model
Stable Economics
Design Review
06
Final Report & Remediation Support
Receive a detailed audit report with severity-ranked findings, actionable fixes, and direct support from our engineers to implement all security recommendations.
< 72h
Remediation Review
Certified
Security Seal
security-approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by experts for your Web3 application.
We architect and deploy custom smart contracts that form the secure, automated backbone of your dApp. Our development process is built on audited best practices using Solidity 0.8+, OpenZeppelin libraries, and comprehensive testing frameworks to ensure reliability from day one.
- From Concept to Mainnet: We handle the full lifecycle—design, development, unit/integration testing, and deployment—with a typical MVP delivery in 2-4 weeks.
- Security-First Approach: Every contract undergoes rigorous internal review and is prepared for third-party audits, mitigating risks like reentrancy and overflow.
- Protocol Expertise: Specialized development for
ERC-20,ERC-721,ERC-1155, staking mechanisms, custom governance, and DeFi primitives.
Technical Due Diligence
Hybrid NFT Audit FAQs
Get clear answers on our specialized audit process for hybrid NFTs, which combine on-chain and off-chain logic for dynamic utility.
A hybrid NFT combines on-chain token logic (e.g., ERC-721) with off-chain data and logic (e.g., APIs, oracles, centralized servers) to enable dynamic traits, rewards, or access control. This architecture introduces unique risks: oracle manipulation, API failure points, and state synchronization errors. Our specialized audit examines the full data flow, not just the smart contract, to identify vulnerabilities where the on-chain and off-chain systems interact.
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