We deliver audit-ready code for ERC-20, ERC-721, and custom protocols, reducing your time-to-market to 2-4 weeks for an MVP. Our process integrates security from the first line of Solidity.
LABS
Services
Zero-Knowledge Data Possession Proofs
Engineer systems where storage nodes generate succinct zero-knowledge proofs to verify data integrity and availability without revealing the data itself. We deliver private, auditable decentralized storage for FinTech and Web3 applications.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for speed and compliance.
Deploy with confidence using battle-tested patterns from
OpenZeppelinand formal verification tools.
- Security-First Development: Every contract undergoes static analysis and manual review against the latest attack vectors before your audit.
- Gas Optimization: We target top 10% efficiency for deployment and transaction costs, critical for user adoption.
- Full Lifecycle Support: From initial spec and
Hardhattesting framework to mainnet deployment and upgradeability planning.
key-features-cards
ZK-PROOF INFRASTRUCTURE
Core Technical Capabilities
Our engineering team delivers production-ready ZK data possession systems, built on audited cryptography and battle-tested infrastructure to secure your on-chain assets.
01
Custom ZK Circuit Design
We architect and implement custom zero-knowledge circuits for data possession proofs, tailored to your specific data schema and verification logic using Circom and Halo2.
Circom 2.1+
Framework
Plonk / Groth16
Proving Systems
02
Proof Generation & Aggregation
High-performance proving servers generate and batch proofs for thousands of data entries, optimizing for speed and cost with Rust-based provers and GPU acceleration.
< 2 sec
Proof Gen Time
99.9% SLA
Service Uptime
03
On-Chain Verifier Contracts
Gas-optimized Solidity verifier contracts deployed to your chain of choice, enabling trustless validation of ZK proofs directly on Ethereum, Polygon, or other EVM networks.
Solidity 0.8+
Language
OpenZeppelin
Security Base
05
Data Attestation Oracles
Reliable oracle services that fetch, sign, and commit off-chain data to your smart contracts, creating the signed statements required for ZK proof generation.
Multi-Source
Data Feeds
TLSNotary
Attestation
06
Scalable Prover Infrastructure
Managed cloud infrastructure with auto-scaling provers, monitoring, and alerting to handle proof generation workloads from prototype to enterprise scale.
AWS / GCP
Hosting
Auto-Scaling
Architecture
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Zero-Knowledge Data Possession (ZKDP) proofs deliver verifiable trust without exposing sensitive data. Here’s how our implementation translates into measurable platform advantages.
01
Regulatory Compliance & Audit Readiness
Generate immutable, cryptographic proof of data integrity for regulators and auditors. Demonstrate compliance with GDPR, MiCA, or financial reporting standards without sharing raw user data.
Immutable
Audit Trail
Data-Minimized
Compliance
02
Enhanced User Privacy & Trust
Allow users to prove eligibility (e.g., for airdrops, KYC tiers) or asset ownership without revealing their wallet addresses or transaction history, building unparalleled user confidence.
Selective Disclosure
Privacy
Trustless Verification
Security Model
03
Scalable Data Verification
Offload intensive data verification from your main chain. Our ZKDP circuits verify terabytes of off-chain data with a single, lightweight on-chain proof, reducing gas costs by over 90%.
>90%
Gas Reduction
TB-scale
Data Verified
04
Faster Time-to-Market for New Features
Integrate privacy-preserving features in weeks, not months. We provide battle-tested ZKDP circuits and SDKs for common use cases like proof of reserves, credential verification, and DAO voting.
2-4 weeks
Integration
Pre-Audited
Circuits
05
Secure Data Bridging & Oracles
Create trust-minimized bridges for real-world data. Prove the possession and state of off-chain datasets (market feeds, IoT data) before they are committed on-chain, eliminating oracle manipulation risks.
Tamper-Proof
Data Feed
On-Chain Proof
Verification
06
Competitive Differentiation
Offer features competitors can't match. From private DeFi positions to verifiable ESG reporting, ZKDP proofs create powerful, defensible moats for your Web3 platform.
Unique Features
Market Edge
Future-Proof
Architecture
Strategic Decision Analysis
Build vs. Buy: ZKDP Implementation
A detailed comparison of the time, cost, and risk involved in developing Zero-Knowledge Data Possession proofs in-house versus leveraging Chainscore's production-ready service.
| Implementation Factor | Build In-House | Buy with Chainscore |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $50K - $150K |
Security & Audit Overhead | High (Unaudited Risk) | Low (Pre-Audited Circuits) |
Team Requirements | 3-5 Senior Cryptographers/Engineers | 1-2 Integration Engineers |
Ongoing Maintenance | Full internal team required | Managed Service with optional SLA |
Proof System Flexibility | Custom (High Lock-in) | Plonk, Groth16, Halo2 (Modular) |
Supported Data Types | Build from scratch | Files, Databases, Merkle Trees, Key-Values |
Integration Complexity | High (Custom API/SC Dev) | Low (REST API, SDK, Smart Contract Templates) |
Total Cost of Ownership (Year 1) | $400K - $800K+ | $75K - $200K |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, four-phase approach to deliver production-ready ZK Data Possession Proofs, ensuring security, scalability, and seamless integration with your existing systems.
01
Architecture & Proof Design
We design the optimal ZK circuit architecture for your specific data model (SQL, NoSQL, IPFS) and define the proof statement. This includes selecting the proving system (Plonk, Groth16, Halo2) and defining the trusted setup requirements.
2-3 weeks
Design Phase
3+ Options
Architecture Reviewed
02
Circuit Development & Optimization
Our team implements the ZK circuits in Circom or Halo2, focusing on constraint efficiency and gas optimization for on-chain verification. We integrate with your data source via custom oracles or direct attestation.
< 1M Gates
Circuit Complexity
50-70%
Gas Cost Reduction
03
Security Audit & Trusted Setup
Every circuit undergoes rigorous internal review followed by an optional external audit with partners like Veridise or OtterSec. We manage the Perpetual Powers of Tau ceremony or application-specific MPC for your trusted setup.
100%
Audit Coverage
Certified
Trusted Setup
04
Integration & Production Deployment
We deliver a complete integration package: Solidity verifier contracts, TypeScript/Go prover clients, and comprehensive documentation. We support deployment to mainnet (Ethereum, Polygon, Arbitrum) with monitoring dashboards.
< 2 weeks
Integration Time
99.9% SLA
Prover Uptime
ZK Proofs
Frequently Asked Questions
Get clear answers about our Zero-Knowledge Data Possession Proof development process, security, and outcomes.
A production-ready ZK Data Possession Proof system typically takes 4-8 weeks from kickoff to mainnet deployment. This includes 1-2 weeks for architecture and circuit design, 2-4 weeks for development and internal testing, and 1-2 weeks for third-party audit integration and final deployment. We use agile sprints to deliver incremental proofs-of-concept, keeping you updated weekly.
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