We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited code patterns and rigorous testing to mitigate risk and ensure reliability.
LABS
Services
Zero-Knowledge Proof of Storage Services
We develop and integrate custom ZK-SNARK and STARK circuits for verifiable, confidential storage. Prove your data is stored correctly on decentralized networks without revealing its contents, meeting stringent enterprise and regulatory requirements.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by experts for your Web3 product.
- Full-Stack Development: From
ERC-20tokens andERC-721NFTs to complex DeFi protocols and DAO governance systems. - Security-First Approach: Code reviews, formal verification, and integration with tools like Slither and MythX.
- Gas Optimization: We write efficient code to reduce transaction costs by up to 40%, directly impacting user adoption and operational expenses.
- End-to-End Delivery: From initial spec and development to deployment on Mainnet and ongoing upgrade management.
We deliver battle-tested contracts that power live applications handling millions in TVL, with a focus on security and maintainability from day one.
key-features-cards
PROVEN INFRASTRUCTURE
Our ZK Proof of Storage Capabilities
We build and deploy verifiable data storage systems that provide cryptographic proof of data integrity without revealing the data itself, enabling trust-minimized applications.
01
Custom ZK Circuit Design
Tailored Groth16, Plonk, or Halo2 circuits that prove file existence and integrity. We optimize for your specific data structure and verification cost, reducing on-chain verification gas by up to 40%.
40%
Avg. Gas Reduction
Circom / Halo2
Framework
02
Storage Proof Integration
Seamless integration with decentralized storage networks (Filecoin, Arweave, IPFS) and cloud providers (AWS S3, GCP). We handle the proof generation layer, so your application only queries the verified result.
Multi-Protocol
Support
< 5 sec
Proof Gen Time
03
Continuous Proof Auditing
Automated, scheduled proof generation to provide ongoing, verifiable attestations of data availability. Configurable intervals from real-time to daily, with alerting for any proof failure.
24/7
Monitoring
PagerDuty / Slack
Alerts
04
Proof Aggregation Service
Batch thousands of individual storage proofs into a single aggregated proof. Dramatically lowers the cost and complexity for applications that need to verify the state of large datasets.
1000x
Cost Efficiency
Single Tx
Verification
06
Security & Compliance Focus
All circuits undergo formal verification and auditing by partners like Veridise. Our infrastructure is built with zero-trust principles and supports compliance proofs for regulated data.
Formal Verification
Standard
SOC 2 Type II
Compliance
benefits
DELIVERABLES
Business Outcomes for Your Project
Our Zero-Knowledge Proof of Storage service delivers verifiable infrastructure for decentralized applications, turning complex cryptographic proofs into tangible business advantages.
01
Provable Data Integrity
Instantly verify file availability and integrity without revealing the data itself. Build trust with users and auditors through cryptographic guarantees.
100%
Proof Accuracy
On-Chain
Verification
02
Reduced Storage Costs
Leverage decentralized storage networks like Filecoin and Arweave while maintaining proof of custody. Eliminate expensive centralized infrastructure overhead.
60-80%
Cost Reduction
Pay-per-Prove
Pricing Model
03
Faster Time-to-Market
Integrate ZK-proof generation and verification into your dApp in weeks, not months. We provide SDKs, APIs, and pre-audited circuits for common storage patterns.
< 4 weeks
Integration Time
REST & gRPC
API Support
04
Enhanced Security Posture
Deploy with confidence using our battle-tested circuits, audited by firms like Spearbit. Our architecture ensures no single point of failure for proof generation.
Audited
By Spearbit
Zero-Knowledge
Data Privacy
05
Scalable Proof Generation
Handle millions of storage proofs daily with our horizontally scalable prover network. Automatically adjust capacity for data growth and user demand.
99.9%
Uptime SLA
< 2 sec
Proof Generation
06
Regulatory & Compliance Ready
Generate immutable, cryptographically-verifiable audit trails for data retention policies (SEC Rule 17a-4, GDPR). Demonstrate compliance without exposing sensitive information.
Immutable
Audit Trail
GDPR-Aligned
Data Privacy
use-cases
ENTERPRISE USE CASES
Ideal Applications for Confidential Storage Proofs
Our Zero-Knowledge Proof of Storage service enables verifiable, private data integrity for critical Web3 and FinTech operations. Deploy audited, production-ready proofs to solve specific business challenges.
01
Regulatory Compliance & Audits
Prove data retention and integrity to regulators without exposing sensitive financial records. Our ZK proofs generate cryptographically verifiable audit trails for KYC/AML data, transaction logs, and compliance reports.
SOC 2
Compliance Ready
Immutable
Audit Trail
02
Decentralized Identity & Credentials
Securely store and prove ownership of verifiable credentials (VCs) and soulbound tokens (SBTs). Users can cryptographically attest to holding credentials without revealing the underlying data, enabling private on-chain verification.
W3C
Standard Compliant
Selective
Disclosure
03
Private DeFi & On-Chain Finance
Enable confidential collateral verification and underwriting for lending protocols. Prove asset ownership or creditworthiness from off-chain sources (e.g., TradFi accounts, private balances) without exposing user financial data.
< 2 sec
Proof Generation
zk-SNARKs
Technology
04
Enterprise Data Sharing & Oracles
Allow enterprises and decentralized oracle networks to attest to the integrity of off-chain data feeds (price, weather, IoT) with zero-knowledge proofs. The data source and full dataset remain confidential.
99.9%
Uptime SLA
Sub-second
Finality
05
NFT & Digital Asset Provenance
Provide irrefutable, private proof of asset authenticity and ownership history. Prove an NFT is backed by specific off-chain media or real-world asset data without making the full provenance chain public.
ERC-721/1155
Compatible
Arweave/IPFS
Storage Proofs
06
Confidential Supply Chain Tracking
Enable participants in a supply chain to verify product authenticity, location history, and compliance (temperature, handling) using ZK proofs, while keeping sensitive commercial terms and partner identities private.
Multi-Party
Verification
GS1 Standards
Integration
ZK Proof of Storage
Phased Development & Integration Tiers
A structured approach to integrate verifiable storage proofs, from initial POC to enterprise-grade production systems.
| Feature / Deliverable | Proof of Concept | Production Pilot | Enterprise Scale |
|---|---|---|---|
Custom ZK Circuit Design & Audit | |||
On-Chain Verifier Contract Deployment | Testnet Only | Mainnet (1 Chain) | Multi-Chain Deployment |
Storage Provider SDK & API | Basic SDK | Full SDK + Docs | Custom SDK + White-label |
Integration Support & Consulting | 10 Hours | 40 Hours | Dedicated Technical Lead |
Performance & Load Testing | Basic Simulation | Full Load Test Report | Custom Stress Testing Suite |
Uptime & Performance SLA | 99.5% | 99.9% | |
Ongoing Maintenance & Upgrades | Ad-hoc | Quarterly Reviews | 24/7 Monitoring & Patching |
Estimated Timeline | 2-4 Weeks | 6-10 Weeks | 12+ Weeks |
Estimated Investment | $15K - $30K | $50K - $100K | Custom Quote |
how-we-deliver
FULL-STACK ENGINEERING
Custom Blockchain Development
Build production-grade blockchain networks and applications with expert architecture and development.
We architect and build custom blockchain solutions from the ground up, delivering production-ready infrastructure in 6-8 weeks. Our full-stack approach covers everything from core protocol logic to user-facing applications.
- Layer 1 & 2 Development: Custom EVM-compatible chains, rollups, and sidechains with
geth,besu, orOP Stack. - Smart Contract Suites: Secure, gas-optimized contracts for DeFi, NFTs, and DAOs using
Solidity 0.8+andOpenZeppelin. - Full-Stack dApps: Complete front-end (
React/Next.js) and back-end (Node.js,The Graph) integration.
We deliver a turnkey solution with 99.9% uptime SLAs, comprehensive documentation, and a dedicated technical lead for handover.
Zero-Knowledge Proof of Storage
Frequently Asked Questions
Get clear answers on how Chainscore Labs delivers secure, scalable, and verifiable storage solutions for Web3 applications.
A Zero-Knowledge Proof of Storage (ZK-PoS) is a cryptographic protocol that allows a prover (like a storage node) to convince a verifier (like your smart contract) that it is storing a specific piece of data, without revealing the data itself. You need it to build decentralized applications (dApps) that require verifiable data availability, such as decentralized compute, layer-2 scaling solutions, oracles, and data marketplaces. It replaces trust in a centralized operator with cryptographic guarantees, ensuring data integrity and availability for your protocol's security.
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