We architect, develop, and audit custom Solidity and Rust smart contracts for DeFi, NFTs, and enterprise applications. Our focus is on security-first development with formal verification and gas optimization to ensure reliability and cost-efficiency.
LABS
Services
Privacy-Preserving ZK Device Attestation
We develop custom attestation systems using ZK-SNARKs/STARKs to cryptographically prove device state, data origin, and compliance without revealing the underlying sensitive device data or configuration.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- End-to-End Lifecycle: From initial design and
OpenZeppelinintegration to deployment and upgrade management. - Compliance & Standards: Built-in support for
ERC-20,ERC-721,ERC-1155, and custom regulatory logic. - Proven Security: Multi-layered audits and testing with tools like
Slither,MythX, andFoundry. - Deployment Ready: Contracts are optimized for mainnet launch on Ethereum, Polygon, Arbitrum, and other EVM-compatible chains.
Deliver a secure, audited, and fully functional smart contract system in as little as 4 weeks, reducing your technical risk and accelerating time-to-market.
key-features-cards
ENTERPRISE-GRADE SECURITY
Core Capabilities of Our ZK Attestation Systems
Our zero-knowledge attestation infrastructure provides the cryptographic guarantees and operational reliability required for production-grade applications, from DePIN networks to secure hardware onboarding.
01
On-Chain Proof Verification
We deploy and manage custom verifier smart contracts that validate ZK proofs of device integrity on-chain, enabling trustless verification for applications like DePIN access control and asset tokenization.
Gas-optimized
Verifier Contracts
Multi-chain
EVM & L2 Support
02
Hardware Root of Trust Integration
Secure integration with hardware security modules (HSMs), TPMs, and secure enclaves (SGX, TrustZone) to generate unforgeable attestation reports as proof inputs, ensuring the provenance of device data.
TPM 2.0 / SGX
Supported Standards
End-to-End
Secure Channel
03
Custom Circuit Development
Design and implement zk-SNARK/STARK circuits tailored to your specific attestation logic (e.g., firmware hash, geolocation, sensor readings) using Circom, Halo2, or other industry-standard frameworks.
Circom / Halo2
Framework Expertise
Audited
Security-First
04
Proof Generation Infrastructure
Managed, scalable services for generating ZK proofs from raw attestation data. We handle the computational heavy lifting with optimized provers, ensuring low latency and high throughput for your application.
< 2 sec
Proof Generation
99.9% SLA
Uptime
05
Privacy-Preserving Data Schema
Engineer the data schema and proof statements to reveal only the necessary claims (e.g., "device is in region X") while keeping all other sensor data and identifiers completely private.
Selective Disclosure
Data Minimization
W3C Compliant
Verifiable Credentials
06
Audit & Security Certification
Every system undergoes rigorous security audits of circuits and smart contracts by leading firms. We provide verifiable audit reports to meet enterprise compliance and risk management requirements.
Trail of Bits
Audit Partners
Full Report
Delivered
benefits
DELIVERABLES
Business Outcomes for IoT & DePIN Teams
Our ZK Device Attestation service delivers verifiable, production-ready infrastructure. We focus on concrete results that accelerate your time-to-market and secure your network.
01
Hardware Identity Layer
Deploy a unique, cryptographically verifiable identity for each physical device. This immutable on-chain fingerprint prevents spoofing and forms the root of trust for your entire DePIN network.
> 1M
Devices Supported
Zero Trust
Architecture
02
Privacy-Preserving Proofs
Generate zero-knowledge proofs that verify device data integrity and operational state without exposing raw sensor data or location. Maintain user privacy while proving compliance.
< 500ms
Proof Generation
ZK-SNARKs/STARKs
Proof Systems
03
Automated On-Chain Settlement
Trigger smart contract payments, rewards, or data market transactions automatically upon successful ZK attestation. Eliminate manual reconciliation and enable real-time microtransactions.
Sub-Second
Settlement Finality
ERC-20/ERC-1155
Token Standards
04
Enterprise-Grade Security
Built with formal verification practices and audited by leading security firms. Our attestation circuits and relayers follow OWASP and NIST guidelines for critical infrastructure.
Audited
Code
99.9% SLA
Relayer Uptime
05
Multi-Chain Interoperability
Deploy attestation verifiers across Ethereum, Polygon, Arbitrum, and other EVM-compatible chains. Future-proof your architecture and avoid vendor lock-in.
EVM+
Compatibility
< 2 Weeks
Chain Integration
06
Full Infrastructure Handoff
Receive a complete, documented system: ZK circuits, verifier contracts, device SDKs, and monitoring dashboards. We ensure a smooth transition to your engineering team.
Production-Ready
Delivery
24/7 Support
Included
Why Modern Privacy is Non-Negotiable
ZK Attestation vs. Traditional Methods
A technical and operational comparison of privacy-preserving ZK attestation against legacy approaches for verifying device identity and integrity in Web3 applications.
| Comparison Factor | Traditional PKI / Centralized Attestation | Chainscore ZK Device Attestation |
|---|---|---|
Privacy for End-Users | ||
On-Chain Proof Size | Large (Full Certificate) | ~1 KB (ZK Proof) |
Verification Cost (Gas) | High | Low (< $0.01) |
Trust Assumption | Centralized Certificate Authority | Cryptographic Proof (ZK-SNARKs) |
Data Leakage Risk | High (Sensitive data transmitted) | Zero (Only proof is shared) |
Integration Complexity | High (Custom backend required) | Low (API & SDK) |
Time to Production | 3-6 months | 2-4 weeks |
Compliance Ready (GDPR, CCPA) | Challenging | Designed for Compliance |
Estimated Annual TCO (for 100K devices) | $50K - $150K+ | $15K - $50K |
how-we-deliver
END-TO-END DELIVERY
Our Development & Integration Process
A structured, security-first approach to integrate privacy-preserving device attestation into your application, from initial design to production deployment.
01
Architecture & Protocol Design
We design a custom ZK circuit and attestation flow tailored to your hardware (TPM, SGX, TEE) and use case (IoT, DePIN, identity). This includes defining the proving scheme, data models, and integration points with your existing backend.
1-2 weeks
Design Sprint
Zero-Knowledge
Privacy Guarantee
02
Circuit Development & Optimization
Our team builds and rigorously optimizes the zero-knowledge circuits using frameworks like Circom or Halo2. We focus on minimizing proof generation time and on-chain verification gas costs for cost-effective scaling.
< 2 sec
Avg. Proof Gen
~200k gas
On-Chain Verify
03
Secure Prover & Verifier Deployment
We deploy the high-performance proving service (prover) with auto-scaling and a lightweight, gas-optimized verifier smart contract. Infrastructure includes load balancing, monitoring, and 99.9% uptime SLAs.
99.9%
Uptime SLA
Multi-Cloud
Deployment
05
Security Audit & Penetration Testing
Every component—circuits, smart contracts, and backend services—undergoes internal review and external audit by specialized firms. We provide a final audit report and implement all recommendations before launch.
External Audit
Mandatory Step
Zero Critical
Bug Policy
06
Production Monitoring & Support
Post-launch, we provide 24/7 monitoring of proof success rates, system health, and on-chain verification. Includes dedicated technical support, performance reporting, and upgrade planning for protocol changes.
24/7
Monitoring
SLA-Backed
Support
use-cases
VERIFIABLE TRUST IN HARDWARE
Primary Applications & Industries
Our zero-knowledge device attestation service provides cryptographic proof of hardware integrity, enabling new trust models for physical and digital asset management. Deploy production-ready attestation in weeks, not months.
ZK Device Attestation
Frequently Asked Questions
Get clear answers on how our privacy-preserving ZK Device Attestation service works, from integration to long-term support.
ZK Device Attestation is a cryptographic method to verify a user's device integrity (like OS version, security patches) without revealing the underlying data. It's critical for Web3 applications requiring high-security access, such as institutional DeFi wallets, on-chain trading platforms, or enterprise-grade dApps. We implement this using zero-knowledge proofs (ZKPs), allowing you to enforce security policies while preserving user privacy—a key compliance advantage.
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