We architect and deploy audit-ready smart contracts on EVM and Solana. Our development process is built on OpenZeppelin standards and battle-tested security patterns, ensuring your core logic is robust from day one.
LABS
Services
Zero-Knowledge Proof of Location
Chainscore builds cryptographic protocols that generate verifiable proofs of a device's location for DePIN rewards and access control, without exposing sensitive coordinate data.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your protocol.
From tokenomics to governance, we translate your business logic into immutable, efficient code.
- Custom Token Standards:
ERC-20,ERC-721,ERC-1155, andSPLimplementations with tailored minting, burning, and transfer logic. - DeFi & dApp Logic: Automated market makers (AMMs), staking pools, vesting schedules, and multi-signature wallets.
- Gas Optimization: Code reviews and refactoring to reduce transaction costs by up to 40%.
- Full Audit Support: We prepare comprehensive documentation and test suites for seamless third-party security audits.
key-features-cards
PRODUCTION-READY ZK INFRASTRUCTURE
Core Technical Capabilities
Our zero-knowledge proof of location service is built on battle-tested cryptographic primitives and a robust backend, delivering verifiable location data with enterprise-grade reliability.
03
On-Chain & Off-Chain Verification
Choose between gas-efficient on-chain verification for smart contract integration or high-throughput off-chain API verification. We support verification on Ethereum, Polygon, and other EVM-compatible chains.
< 1 sec
Verification Time
< $0.01
Avg. Gas Cost
05
Scalable Prover Infrastructure
Deploy our managed prover nodes for high-volume applications. We handle circuit compilation, proof generation scaling, and key management, ensuring 99.9% uptime for your location-dependent services.
99.9%
Uptime SLA
10k+ TPS
Proof Capacity
06
Custom Geofencing & Logic
Implement complex business logic with programmable geofences. Define custom polygons, time windows, and multi-user proof requirements (e.g., "5 users within 100m") directly in your smart contracts or via our API.
benefits
DELIVERABLES
Business Outcomes for Your DePIN Project
Our Zero-Knowledge Proof of Location service delivers verifiable, privacy-preserving location data to power your DePIN applications. We focus on the technical outcomes that accelerate your time-to-market and build user trust.
01
Privacy-First Location Verification
Implement ZK-SNARKs or ZK-STARKs to prove a device's location without revealing sensitive coordinates or user identity, enabling compliant, trustless applications.
0
Raw Data Exposed
ZK-SNARKs/STARKs
Proof System
02
Sub-Second Proof Generation
Optimized ZK circuits and prover infrastructure deliver verifiable location proofs in under 1 second, ensuring real-time usability for mobility, supply chain, and IoT use cases.
< 1 sec
Proof Generation
~10 KB
Proof Size
03
Audited & Secure Circuit Design
Custom ZK circuits built with Circom or Halo2, following best practices and verified through internal & third-party audits to eliminate cryptographic vulnerabilities.
Circom/Halo2
Framework
Third-Party Audits
Security Standard
04
Multi-Chain Verifier Deployment
Deploy lightweight, gas-optimized verifier smart contracts on Ethereum, Polygon, Arbitrum, or other EVM-compatible chains to validate proofs on-chain.
EVM/Solana
Chain Support
< 200k gas
Avg. Verify Cost
05
Hardware Integration SDK
Client-side SDKs for Android, iOS, and embedded systems to generate location attestations from GPS/GSM data, ready for ZK proof generation.
Android/iOS
Platform Support
Rust/C++
Core Language
06
Scalable Prover Infrastructure
Managed cloud infrastructure for high-throughput proof generation with 99.9% uptime SLA, auto-scaling to handle millions of daily verification requests.
99.9%
Uptime SLA
AWS/GCP
Infrastructure
ZK-PoL Integration Packages
Implementation Tiers & Deliverables
Compare our structured service tiers designed to integrate Zero-Knowledge Proof of Location into your application, from initial audit to full-scale production deployment.
| Feature / Deliverable | Audit & Design | Integration & Launch | Managed Service |
|---|---|---|---|
ZK-PoL Circuit Audit | |||
Custom Smart Contract Development | |||
Multi-Chain Deployment (EVM) | |||
Frontend SDK & API Integration | |||
Performance & Load Testing | |||
24/7 Monitoring & Alerting | |||
SLA-Backed Uptime (99.9%) | |||
Dedicated Technical Support | Priority Slack | Dedicated Engineer | |
Implementation Timeline | 2-3 weeks | 4-8 weeks | 8+ weeks (ongoing) |
Estimated Investment | $15K - $30K | $50K - $150K | Custom Quote |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Development Process
A structured, four-phase approach to deliver production-ready ZK Proof of Location infrastructure with clear milestones and guaranteed outcomes.
01
Architecture & Protocol Design
We define your ZK circuit architecture, select optimal proving systems (e.g., Plonk, Groth16), and design the location attestation protocol for your specific use case (supply chain, mobility, DeFi).
2-3 weeks
Design Phase
3+ Options
Architecture Reviewed
02
Circuit Development & Optimization
Our team builds and optimizes the ZK circuits in Circom or Halo2, focusing on proof generation speed and verification gas costs. We implement privacy-preserving location logic and geofencing.
< 2 sec
Target Proof Gen
< 200k gas
Target On-Chain Verify
04
Integration & Production Deployment
We deploy the verifier contracts to your chain (EVM, L2, AppChain) and provide SDKs for seamless integration into your mobile or backend systems, complete with monitoring dashboards.
1-2 weeks
Integration Sprint
99.9% SLA
Prover Uptime
ZK Proof of Location
Frequently Asked Questions
Get clear answers on how we deliver enterprise-grade ZK location verification for your Web3 project.
We build a custom system where user devices generate a cryptographic proof of their geographic coordinates without revealing the raw data. This proof is verified on-chain by your smart contract, enabling location-based access, rewards, or compliance. Our typical architecture uses a mobile SDK for proof generation and a lightweight verifier contract, supporting use cases like geo-fenced NFTs, local DeFi, and supply chain tracking.
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