We architect, develop, and deploy custom smart contracts that form the immutable core of your Web3 application. Our process delivers audit-ready code from day one, ensuring security and reducing time-to-market.
LABS
Services
DePIN Hardware Wallet Card Linkage
Engineering secure, low-latency linkages between Decentralized Physical Infrastructure Networks (DePIN) hardware devices and payment card rails to enable authenticated, device-originated microtransactions.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Protocols & Standards:
ERC-20,ERC-721,ERC-1155,ERC-4626, and custom logic for DeFi, NFTs, and DAOs. - Security-First Development: Built with
Solidity 0.8+andOpenZeppelinlibraries, following established patterns to mitigate reentrancy and overflow risks. - Full Lifecycle Support: From initial design and testing to deployment, verification, and ongoing maintenance on mainnet and L2s.
We deliver contracts that pass initial security audits with fewer critical findings, saving weeks of rework and protecting your project's reputation and assets.
key-features-cards
HARDWARE WALLET INTEGRATION
Core Technical Capabilities
We build secure, scalable bridges between DePIN hardware and on-chain wallets, enabling seamless asset management and transaction signing for physical infrastructure networks.
02
Custom HSM & TEE Integration
Development of Hardware Security Module (HSM) and Trusted Execution Environment (TEE) solutions for air-gapped, high-value DePIN operations. Ensures keys never leave the secure enclave.
FIPS 140-2
Compliance
Air-Gapped
Operation
03
Cross-Chain Wallet Abstraction
Unified wallet layer supporting EVM, Solana, and Cosmos-based DePIN networks. Manage assets and sign transactions across multiple chains from a single hardware interface.
EVM + Solana
Chain Support
Single Interface
Unified Control
04
Real-Time Transaction Orchestration
Orchestration engine for complex, multi-step DePIN transactions (staking, rewards, device registration). Handles gas estimation, nonce management, and failure recovery automatically.
< 2 sec
Signing Latency
Auto-Retry
Logic
06
Device Identity & Attestation
Cryptographic attestation system that binds a hardware wallet's secure element to a unique on-chain DePIN device identity, preventing spoofing and ensuring provenance.
Unique ID
Per Device
Zero Trust
Verification
benefits
TANGIBLE RESULTS
Business Outcomes for DePIN Operators
Our DePIN Hardware Wallet Card Linkage service delivers measurable operational and financial improvements, moving beyond theoretical benefits to proven infrastructure gains.
01
Enhanced Network Security & Trust
Hardware-secured key management eliminates single points of failure and protects against remote exploits, building user and investor confidence in your network's integrity.
0
Remote Key Compromises
FIPS 140-2 Level 3
Security Standard
02
Reduced Operational Friction
Automated, on-chain proof-of-location and device attestation via signed hardware messages, eliminating manual verification and reducing administrative overhead by over 70%.
>70%
Less Admin Work
Real-time
Attestation
03
Scalable, Verifiable Node Onboarding
Streamline the addition of thousands of physical nodes with automated, cryptographically verifiable hardware identity linking, enabling linear scaling without security degradation.
Minutes
Per-Node Setup
Unlimited
Scalable Architecture
04
Auditable Compliance & Reporting
Generate immutable, hardware-verified audit trails for all node operations and rewards distribution, simplifying regulatory compliance and stakeholder reporting.
100%
Immutable Logs
On-chain
Proof of Operation
05
Increased Network Value & Tokenomics
Hardware-backed nodes are more valuable and trustworthy, supporting higher staking rewards, improved token utility, and stronger network effects compared to software-only solutions.
Higher
Staking Multiplier
Stronger
Network Effects
Structured Deployment Approach
DePIN Wallet Linkage Implementation Roadmap
A phased, milestone-driven approach to securely link DePIN hardware wallets to your application, ensuring a controlled launch and scalable growth.
| Phase & Deliverables | Discovery & Architecture (Weeks 1-2) | Core Integration (Weeks 3-6) | Scale & Optimize (Weeks 7-8+) |
|---|---|---|---|
Technical Architecture Review | |||
Wallet Protocol Selection (e.g., Web3Auth, MPC) | |||
Smart Contract Suite for On-Chain Linkage | |||
Secure API Gateway & Middleware Layer | |||
End-to-End User Flow (Onboarding, Linking, Recovery) | |||
Security Audit & Penetration Testing | |||
Multi-Chain Deployment Support | |||
Performance Optimization & Load Testing | |||
Ongoing Monitoring & SLA Coverage | |||
Estimated Timeline | 2 Weeks | 4 Weeks | 2+ Weeks |
security-approach
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts that power your Web3 product.
We build production-ready Solidity and Rust smart contracts with a focus on security, gas efficiency, and upgradeability. Every contract follows OpenZeppelin standards and undergoes rigorous internal review before deployment.
Deliver a secure, auditable foundation for your token, DeFi protocol, or NFT platform in 2-4 weeks.
- Custom Logic: From
ERC-20tokens andERC-721NFTs to complex DeFi vaults and governance systems. - Security First: Multi-stage review process, integration with tools like
SlitherandMythX, and preparation for third-party audits. - Full Lifecycle: Development, testing (
Hardhat/Foundry), deployment, and post-launch monitoring and maintenance.
tech-stack
SECURE BY DESIGN
Proven Technology Stack
Our DePIN hardware wallet linkage is built on a battle-tested, multi-layered architecture. We combine enterprise-grade security protocols with seamless user experience to deliver a production-ready solution.
DePIN Hardware Integration
Frequently Asked Questions
Get clear answers on linking physical hardware wallets to DePIN networks for secure, automated operations.
Standard integration projects are completed in 3-5 weeks. This includes a 1-week discovery and architecture phase, 2-3 weeks for core development and security hardening, and a final week for testing and deployment. Complex multi-chain or custom hardware integrations may extend this timeline, which we scope and quote upfront.
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